Pub Date : 2023-07-03DOI: 10.1080/21580103.2023.2241497
E. R. Palupi, S. Sudarsono, S. Sadjad, D. Solihin, J. Owens
Abstract Teak is an insect-pollinated species, and seed production depends on pollinators. The objectives of this study were to determine potential pollinators of teak and their foraging behavior in obtaining alternate food sources as the basis for management recommendations. Four traps, i.e. Moczarsky-Winkler selector traps, sticky traps, yellow-pan traps, and manual traps (insect net), were put up among blooming inflorescences during the flowering period of March to May. Insects were collected and counted weekly and identified. The presence and location of the pollen on their bodies were observed. The time and duration of foraging behavior, the duration of a single visit, the number of visits in an hour, and the landing position when approaching the teak flower as well as the understory were also observed. The result showed Ceratina sp., and Braunsapis sp. (Apidae), Nomia sp. (Halictidae) were potential teak pollinators in the CSO in East Java. The insect foraging behavior supports the ability to deposit pollen onto the stigma. The presence of Mimosa pudica in the understory plays as an alternate food source for pollinators. Intensive weeding and trimming of old or dead branches should be less practiced to enhance pollinators’ populations and nesting sites.
{"title":"The behavior of insect pollinators in a teak (Tectona grandis L. f.) clonal seed orchard with weedy understory in East Java","authors":"E. R. Palupi, S. Sudarsono, S. Sadjad, D. Solihin, J. Owens","doi":"10.1080/21580103.2023.2241497","DOIUrl":"https://doi.org/10.1080/21580103.2023.2241497","url":null,"abstract":"Abstract Teak is an insect-pollinated species, and seed production depends on pollinators. The objectives of this study were to determine potential pollinators of teak and their foraging behavior in obtaining alternate food sources as the basis for management recommendations. Four traps, i.e. Moczarsky-Winkler selector traps, sticky traps, yellow-pan traps, and manual traps (insect net), were put up among blooming inflorescences during the flowering period of March to May. Insects were collected and counted weekly and identified. The presence and location of the pollen on their bodies were observed. The time and duration of foraging behavior, the duration of a single visit, the number of visits in an hour, and the landing position when approaching the teak flower as well as the understory were also observed. The result showed Ceratina sp., and Braunsapis sp. (Apidae), Nomia sp. (Halictidae) were potential teak pollinators in the CSO in East Java. The insect foraging behavior supports the ability to deposit pollen onto the stigma. The presence of Mimosa pudica in the understory plays as an alternate food source for pollinators. Intensive weeding and trimming of old or dead branches should be less practiced to enhance pollinators’ populations and nesting sites.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"19 1","pages":"241 - 249"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89527982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/21580103.2023.2231963
Binega Derebe, A. Alemu
Abstract Non-timber forest products (NTFPs) are those that come from forests other than those that provide timber. In order to identify the NTFPs’ financial contribution and usage categories based on regional and temporal patterns in the Horn of Africa countries, we performed a systematic review of 60 papers published between 2010 and 2022. The review used the search terms Non-Timber Forest Product* OR Non- Wood Forest Product*(NWFPs) OR Minor Forest Product in combination with Livelihoods and also Horn of Africa countries to thoroughly search the articles on the Google Scholar, Research4life, Scopus, Science direct, ResearchGate portals, EMBASE, and PubMed databases. The records contained information about the paper’s title, abstract, keywords, authors, country, NTFP income amount, NTFP usage type, and publication year. The recorded data were analyzed using R Studio, IBM SPSS Statistics 26, and Excel 2019. The majority of the research article for this review was done in Ethiopia (45%), Sudan (22%) and Kenya (17%), respectively. According to the review’s findings, NTFPs have a significant impact on rural household income in six nations, the average NTFP overall revenue was 24.41%. There were more than 35 NTFP uses and the source of product in the Horn of African Countries however, Gum Arabic, Food, Firewood, Medicinal plant, and honey were the five NTFP usage types that were used by people and found in almost in all countries of the Horn of Africa. The fact that different countries utilize different types of NTFPs, the most commonly used types of NTFPs have statistically significances differ (p < 0.05). According to the systematic review, the Horn of Africa is rich in NTFPs, which enhance rural income.
{"title":"Non-timber forest product types and its income contribution to rural households in the Horn of Africa: a systematic review","authors":"Binega Derebe, A. Alemu","doi":"10.1080/21580103.2023.2231963","DOIUrl":"https://doi.org/10.1080/21580103.2023.2231963","url":null,"abstract":"Abstract Non-timber forest products (NTFPs) are those that come from forests other than those that provide timber. In order to identify the NTFPs’ financial contribution and usage categories based on regional and temporal patterns in the Horn of Africa countries, we performed a systematic review of 60 papers published between 2010 and 2022. The review used the search terms Non-Timber Forest Product* OR Non- Wood Forest Product*(NWFPs) OR Minor Forest Product in combination with Livelihoods and also Horn of Africa countries to thoroughly search the articles on the Google Scholar, Research4life, Scopus, Science direct, ResearchGate portals, EMBASE, and PubMed databases. The records contained information about the paper’s title, abstract, keywords, authors, country, NTFP income amount, NTFP usage type, and publication year. The recorded data were analyzed using R Studio, IBM SPSS Statistics 26, and Excel 2019. The majority of the research article for this review was done in Ethiopia (45%), Sudan (22%) and Kenya (17%), respectively. According to the review’s findings, NTFPs have a significant impact on rural household income in six nations, the average NTFP overall revenue was 24.41%. There were more than 35 NTFP uses and the source of product in the Horn of African Countries however, Gum Arabic, Food, Firewood, Medicinal plant, and honey were the five NTFP usage types that were used by people and found in almost in all countries of the Horn of Africa. The fact that different countries utilize different types of NTFPs, the most commonly used types of NTFPs have statistically significances differ (p < 0.05). According to the systematic review, the Horn of Africa is rich in NTFPs, which enhance rural income.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"1 1","pages":"210 - 220"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90375803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/21580103.2023.2222156
Sanudin , A. Widiyanto, E. Fauziyah, L. Sundawati
Abstract The COVID-19 pandemic has created impacts on various aspects of life and caused a shock to all sectors, including agriculture. The Indonesian government continues encouraging access for communities to be involved in forest management through social forestry programs Minister of Environment and Forestry Regulation No. 9 of 2021 on Social Forestry Management is Indonesia’s latest policy regulating social forestry. For Java Island, the social forestry program is regulated by the Minister of Environment and Forestry Regulation No. 39 of 2017. Traditional agroforestry has been carried out by farmers throughout Indonesia for a long time, both in state forest areas through social forestry programs and on private land dominated by woody tree species called private forests. This research aims to examine the resilience of agroforestry farmers in social forestry areas and private forest during the COVID-19 pandemic in Indonesia. This research was conducted in Garut and Bandung Districts, West Java Province, Indonesia, from May to July 2022. Interviews were performed with 219 respondents from six farmer groups: four groups that obtained social forestry permits through the recognition and protection of forestry partnerships (pengakuan dan perlindungan kemitraan kehutanan/KULIN KK) scheme and two groups in a private forest. The household livelihood resilience approach was used to analyze the agroforestry farmers’ resilience, comprised of financial, human, social, physical, and natural capital. Data were processed with a Likert scale (1, 2, and 3) and visualized using a spider diagram to compare and distinguish the five types of capital. The results showed the COVID-19 pandemic affected both social forestry and private forest farmers, where there was a decrease in agroforestry product prices and an increase in production input prices. These excluded private forest products, specifically cardamom, which has increased prices. Agroforestry farmers in the private forest have higher resilience than social forestry. These results highlight the need to increase financial capital, which has the lowest value for increasing household resilience. The level of resilience is influenced by the characteristics of farmers, especially their level of education, land ownership, and income. Based on the results, capital assistance, market access, and training related to post-harvesting are strategies for improving resilience. The results also contributed to efforts needed to increase the resilience of social forestry and private forest farmers during the COVID-19 pandemic. Further research is needed to determine the resilience of agroforestry farmers in social forestry and community forests after the COVID-19 pandemic.
2019冠状病毒病大流行对人们生活的方方面面造成了影响，对包括农业在内的所有部门都造成了冲击。印度尼西亚政府继续鼓励社区通过社会林业项目参与森林管理，环境和林业部长2021年关于社会林业管理的第9号条例是印度尼西亚规范社会林业的最新政策。爪哇岛的社会林业计划由2017年环境和林业部长条例第39号规定。长期以来，印尼各地的农民一直在进行传统的农林复合经营，既包括通过社会林业项目在国有林区经营，也包括以木本树种为主的私有土地(称为私有森林)。本研究旨在考察印尼社会林区和私人林区农林业农民在2019冠状病毒病大流行期间的复原力。这项研究于2022年5月至7月在印度尼西亚西爪哇省加鲁特和万隆区进行。对来自6个农民群体的219名受访者进行了访谈:4个群体通过林业伙伴关系(pengakuan dan perlindungan kemitraan kehutanan/KULIN KK)计划的认可和保护获得了社会林业许可证，2个群体在私有森林。采用家庭生计弹性方法分析农林业农户的弹性，包括财政资本、人力资本、社会资本、物质资本和自然资本。数据采用李克特量表(1,2,3)进行处理，并使用蜘蛛图进行可视化，以比较和区分五种类型的资本。结果表明，新冠肺炎疫情对社会林业和私营林农均有影响，农林业产品价格下降，生产投入价格上涨。其中不包括私人林产品，特别是豆蔻，因为豆蔻提高了价格。农林业农户的恢复力高于社会林业农户。这些结果凸显了增加金融资本的必要性，而金融资本对提高家庭抵御能力的价值最低。恢复力水平受到农民特征的影响，特别是他们的教育水平、土地所有权和收入。根据研究结果，资本援助、市场准入和收获后相关培训是提高韧性的战略。研究结果还有助于提高社会林业和私营林农在2019冠状病毒病大流行期间的抵御能力。需要进一步研究以确定2019冠状病毒病大流行后社会林业和社区森林中农林业农民的复原力。
{"title":"Agroforestry farmers’ resilience in social forestry and private Forest programs during the COVID-19 pandemic in Indonesia","authors":"Sanudin , A. Widiyanto, E. Fauziyah, L. Sundawati","doi":"10.1080/21580103.2023.2222156","DOIUrl":"https://doi.org/10.1080/21580103.2023.2222156","url":null,"abstract":"Abstract The COVID-19 pandemic has created impacts on various aspects of life and caused a shock to all sectors, including agriculture. The Indonesian government continues encouraging access for communities to be involved in forest management through social forestry programs Minister of Environment and Forestry Regulation No. 9 of 2021 on Social Forestry Management is Indonesia’s latest policy regulating social forestry. For Java Island, the social forestry program is regulated by the Minister of Environment and Forestry Regulation No. 39 of 2017. Traditional agroforestry has been carried out by farmers throughout Indonesia for a long time, both in state forest areas through social forestry programs and on private land dominated by woody tree species called private forests. This research aims to examine the resilience of agroforestry farmers in social forestry areas and private forest during the COVID-19 pandemic in Indonesia. This research was conducted in Garut and Bandung Districts, West Java Province, Indonesia, from May to July 2022. Interviews were performed with 219 respondents from six farmer groups: four groups that obtained social forestry permits through the recognition and protection of forestry partnerships (pengakuan dan perlindungan kemitraan kehutanan/KULIN KK) scheme and two groups in a private forest. The household livelihood resilience approach was used to analyze the agroforestry farmers’ resilience, comprised of financial, human, social, physical, and natural capital. Data were processed with a Likert scale (1, 2, and 3) and visualized using a spider diagram to compare and distinguish the five types of capital. The results showed the COVID-19 pandemic affected both social forestry and private forest farmers, where there was a decrease in agroforestry product prices and an increase in production input prices. These excluded private forest products, specifically cardamom, which has increased prices. Agroforestry farmers in the private forest have higher resilience than social forestry. These results highlight the need to increase financial capital, which has the lowest value for increasing household resilience. The level of resilience is influenced by the characteristics of farmers, especially their level of education, land ownership, and income. Based on the results, capital assistance, market access, and training related to post-harvesting are strategies for improving resilience. The results also contributed to efforts needed to increase the resilience of social forestry and private forest farmers during the COVID-19 pandemic. Further research is needed to determine the resilience of agroforestry farmers in social forestry and community forests after the COVID-19 pandemic.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"25 1","pages":"197 - 209"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73382651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/21580103.2023.2234463
Muhammad Rendana, Wan Mohd Razi Idris, S. Abdul Rahim, Hazem Ghassan Abdo, Hussein Almohamad, Ahmed Abdullah Al Dughairi
Abstract Context It is essential to assess the suitable habitat for elephants in order to mitigate the effects of forest fragmentation on conservation. Aims This study aimed to estimate the potential suitable habitats for Sumatran elephants in the fragmented forest in the Padang Sugihan wildlife reserve area in southern Sumatra, Indonesia. Methods The habitat suitability was analyzed using some environmental factors such as slope, elevation, land cover, distance to rivers, and distance to agricultural areas. The remote sensing, geographic information system (GIS), and MaxEnt model were used to determine the potential habitat suitability for Sumatran elephants. Results This study revealed areas of suitable habitat were evenly distributed throughout the study area, with the composition being suitable (45%), highly suitable (5%), and less suitable (50%). This study revealed the most suitable habitats were found in dense forest areas (gelam or Melaleuca cajuputi forest), which were highly affected by river adjacency, whereas agricultural areas resulted in constrained suitability and fragmentation of forested areas. Conclusions As a whole, the estimation of elephant habitat using remote sensing and GIS may guide the development of conservation strategies for elephant conservation in this region. KEY MESSAGE The Sumatran elephant (Elephas maximus sumatranus) is on the Red List of the International Union for Conservation of Nature as a species that is “Critically Endangered.” The population of elephants has steadily declined in the Sumatra region, which is characterized by peat swamp forests and a tropical rainforest climate and is vulnerable to habitat degradation.
{"title":"Habitat suitability analysis in a natural peat swamp forest on Sumatran elephants using remote sensing and GIS","authors":"Muhammad Rendana, Wan Mohd Razi Idris, S. Abdul Rahim, Hazem Ghassan Abdo, Hussein Almohamad, Ahmed Abdullah Al Dughairi","doi":"10.1080/21580103.2023.2234463","DOIUrl":"https://doi.org/10.1080/21580103.2023.2234463","url":null,"abstract":"Abstract Context It is essential to assess the suitable habitat for elephants in order to mitigate the effects of forest fragmentation on conservation. Aims This study aimed to estimate the potential suitable habitats for Sumatran elephants in the fragmented forest in the Padang Sugihan wildlife reserve area in southern Sumatra, Indonesia. Methods The habitat suitability was analyzed using some environmental factors such as slope, elevation, land cover, distance to rivers, and distance to agricultural areas. The remote sensing, geographic information system (GIS), and MaxEnt model were used to determine the potential habitat suitability for Sumatran elephants. Results This study revealed areas of suitable habitat were evenly distributed throughout the study area, with the composition being suitable (45%), highly suitable (5%), and less suitable (50%). This study revealed the most suitable habitats were found in dense forest areas (gelam or Melaleuca cajuputi forest), which were highly affected by river adjacency, whereas agricultural areas resulted in constrained suitability and fragmentation of forested areas. Conclusions As a whole, the estimation of elephant habitat using remote sensing and GIS may guide the development of conservation strategies for elephant conservation in this region. KEY MESSAGE The Sumatran elephant (Elephas maximus sumatranus) is on the Red List of the International Union for Conservation of Nature as a species that is “Critically Endangered.” The population of elephants has steadily declined in the Sumatra region, which is characterized by peat swamp forests and a tropical rainforest climate and is vulnerable to habitat degradation.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"7 1","pages":"221 - 231"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74030767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Natural forest ecosystem assets and services are increasingly deteriorating due to forest degradation and deforestation in Northern parts of Ethiopia. Enhancing the natural regeneration status of native tree species through different silviculture practices is highly Forest regeneration method recommended. Thus, this study aims to investigate the role of different silvicultural interventions in enhancing the regeneration condition of selected ecological and economical important tree species. Three natural forests stands from different agro-ecologies were chosen and three silvicultural treatments including Fencing, Fence + hoeing, Fence + gap creation, and control (without any intervention) with 400 m2 plot areas established with three replications and randomized complete block design (RCBD) with a total of 36 plots. In each plot, seedling, and saplings under different mod of regeneration were recorded while height and diameter at breast height were measured and analyzed using descriptive and inferential statistics using R version 4.1. There was a significant difference (p < .05) in seedling density and regeneration status among forest stands, methods of regeneration, silvicultural methods, and season of regeneration. The Camboo forest stand recorded the highest regeneration (971 seedlings ha−1); seedlings regenerated from seed recorded the highest regeneration (368 seedlings ha−1), fencing and gap creation silvicultural intervention recorded the highest seedlings (961 seedlings ha−1), the highest regeneration density was recorded at mid-rainy season (570 seedlings ha−1); and Prunus africana and Albizia gummifera have the best regeneration capacity (245 seedlings ha−1) in the study forest stand. The regeneration status of trees under fencing and gap creation plots changed from J-shape to an inverted J-shape before and after silviculture intervention, respectively. The regeneration and population structure of many studied tree species showed particularly good condition in fenced plots than control plots which shows future management interventions for the restoration of degraded natural forest ecosystems in Ethiopia’s tropical forest ecosystems. Some native tree species, such as Hagenia abyssinica, Apodytes dimidata, and Ekebrgia capensis, have a weak response to silvicultural treatments that require advanced regeneration techniques such as clonal nurseries and invitro propagation.
由于埃塞俄比亚北部森林退化和森林砍伐，天然林生态系统资产和服务日益恶化。通过不同的造林措施来提高原生树种的自然更新状态是高度推荐的森林更新方法。因此，本研究旨在探讨不同的造林干预措施对改善生态和经济重要树种更新状况的作用。选择3个不同农业生态的天然林分，采用围栏、围栏+锄地、围栏+造林和对照(无干预)3种造林处理，采用3个重复和随机完全块区设计(RCBD)，共36个样地，共400 m2。在每个样地记录不同再生模式下的幼苗和树苗，测量胸高高度和胸径，采用R version 4.1进行描述性统计和推理统计分析。苗木密度和更新状况在林分、更新方式、造林方式、更新季节等方面存在显著差异(p < 0.05)。更新率最高的是竹林林分(971株ha−1);种子再生苗的更新率最高(368苗ha−1)，围栏和林隙造林干预的更新率最高(961苗ha−1)，更新密度在雨季中期最高(570苗ha−1);研究林分中，非洲李和合欢的更新能力最好(245幼苗ha−1)。在人工造林干预前后，围篱和造林样地下树木的更新状态分别由j型向倒j型转变。许多被研究树种的更新和种群结构在围栏样地显示出比对照样地特别好的状况，这表明埃塞俄比亚热带森林生态系统中退化的天然林生态系统的未来管理干预措施。一些本地树种，如Hagenia abyssinica、Apodytes dimidata和Ekebrgia capensis，对需要先进的再生技术(如无性繁殖苗圃和体外繁殖)的造林处理反应较弱。
{"title":"Assisted natural regeneration of selected tree species through silviculture interventions as a tool for restoring degraded natural forests in northwestern Ethiopia","authors":"Melkamu Kassaye, Amsalu Nigatu, Bahiru Gedamu, Yonas Derebe, Mulugeta Tamer, Fentahun Ayne, Etsegenet Emiru, B. Belay","doi":"10.1080/21580103.2023.2237985","DOIUrl":"https://doi.org/10.1080/21580103.2023.2237985","url":null,"abstract":"Abstract Natural forest ecosystem assets and services are increasingly deteriorating due to forest degradation and deforestation in Northern parts of Ethiopia. Enhancing the natural regeneration status of native tree species through different silviculture practices is highly Forest regeneration method recommended. Thus, this study aims to investigate the role of different silvicultural interventions in enhancing the regeneration condition of selected ecological and economical important tree species. Three natural forests stands from different agro-ecologies were chosen and three silvicultural treatments including Fencing, Fence + hoeing, Fence + gap creation, and control (without any intervention) with 400 m2 plot areas established with three replications and randomized complete block design (RCBD) with a total of 36 plots. In each plot, seedling, and saplings under different mod of regeneration were recorded while height and diameter at breast height were measured and analyzed using descriptive and inferential statistics using R version 4.1. There was a significant difference (p < .05) in seedling density and regeneration status among forest stands, methods of regeneration, silvicultural methods, and season of regeneration. The Camboo forest stand recorded the highest regeneration (971 seedlings ha−1); seedlings regenerated from seed recorded the highest regeneration (368 seedlings ha−1), fencing and gap creation silvicultural intervention recorded the highest seedlings (961 seedlings ha−1), the highest regeneration density was recorded at mid-rainy season (570 seedlings ha−1); and Prunus africana and Albizia gummifera have the best regeneration capacity (245 seedlings ha−1) in the study forest stand. The regeneration status of trees under fencing and gap creation plots changed from J-shape to an inverted J-shape before and after silviculture intervention, respectively. The regeneration and population structure of many studied tree species showed particularly good condition in fenced plots than control plots which shows future management interventions for the restoration of degraded natural forest ecosystems in Ethiopia’s tropical forest ecosystems. Some native tree species, such as Hagenia abyssinica, Apodytes dimidata, and Ekebrgia capensis, have a weak response to silvicultural treatments that require advanced regeneration techniques such as clonal nurseries and invitro propagation.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"8 1","pages":"232 - 240"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79656390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-07-03DOI: 10.1080/21580103.2023.2216208
N. Yuniarti, Yulianti , Dede J. Sudrajat, Nurhasybi , M. Zanzíbar, D. Syamsuwida, N. Mindawati, A. Junaedi, K. P. Putri, E. Rustam, N. Widyani, Yosephine Martha Maria Anita Nugraheni
Abstract Red jabon (Neolamarckia macrophylla) is one of potential tree species, but there are some problems in its cultivation. Intermediate seed character and very small seed sizes with little food reserves often cause the low germination, low growth of the seedlings, and the sowing of the seeds to be too dense, resulting in an abnormal number of seedlings. The purpose of the research was to improve the seed germination and seedling quality of red jabon by adjusting the sowing density and seed invigoration treatment using hormonal and biopriming. Two experiments were conducted, that is, (1) identification of optimal seed density on the several combinations of sowing media (top soil, rice husk and compost) and (2) evaluation of the most suitable hormonal priming (GA3) and biopriming (liquid organic fertilizer, LOF) applications. The use of top soil media with a seed density of 0.5 g/400 cm2 can produce the highest pure live seed (PLS), that is, 721.67 seedlings/0.5 g. The seed treated by hormonal and bio-priming significantly affected the seed germination and seedling growth. Soaking seed in GA3 100 ppm for 4 days produced the highest of the PLS (764 seedlings/0.5 g), followed by soaking in LOF for 3 days and GA3 50 ppm for 4 days. The highest seedling height was generated from soaking the seeds using LOF for 3 days. The highest root collar diameter and biomass of red jabon seedlings were obtained from the treatment of seeds immersed in the GA3 50 ppm for 3 days. The best quality index value of red jabon seedlings was produced from the treatment of seeds immersed in the hormone GA3 50 ppm for 3 days. In general, a sowing density of 0.5 g/400 cm2 in top soil media and seed soaking treatment in GA3 50 ppm or LOF for 3 days can improve germination and growth of red jabon seedlings.
{"title":"Improvement of seedling quality of red jabon (Neolamarckia macrophylla (Roxb.) Bosser) through seed sowing techniques and seed invigoration","authors":"N. Yuniarti, Yulianti , Dede J. Sudrajat, Nurhasybi , M. Zanzíbar, D. Syamsuwida, N. Mindawati, A. Junaedi, K. P. Putri, E. Rustam, N. Widyani, Yosephine Martha Maria Anita Nugraheni","doi":"10.1080/21580103.2023.2216208","DOIUrl":"https://doi.org/10.1080/21580103.2023.2216208","url":null,"abstract":"Abstract Red jabon (Neolamarckia macrophylla) is one of potential tree species, but there are some problems in its cultivation. Intermediate seed character and very small seed sizes with little food reserves often cause the low germination, low growth of the seedlings, and the sowing of the seeds to be too dense, resulting in an abnormal number of seedlings. The purpose of the research was to improve the seed germination and seedling quality of red jabon by adjusting the sowing density and seed invigoration treatment using hormonal and biopriming. Two experiments were conducted, that is, (1) identification of optimal seed density on the several combinations of sowing media (top soil, rice husk and compost) and (2) evaluation of the most suitable hormonal priming (GA3) and biopriming (liquid organic fertilizer, LOF) applications. The use of top soil media with a seed density of 0.5 g/400 cm2 can produce the highest pure live seed (PLS), that is, 721.67 seedlings/0.5 g. The seed treated by hormonal and bio-priming significantly affected the seed germination and seedling growth. Soaking seed in GA3 100 ppm for 4 days produced the highest of the PLS (764 seedlings/0.5 g), followed by soaking in LOF for 3 days and GA3 50 ppm for 4 days. The highest seedling height was generated from soaking the seeds using LOF for 3 days. The highest root collar diameter and biomass of red jabon seedlings were obtained from the treatment of seeds immersed in the GA3 50 ppm for 3 days. The best quality index value of red jabon seedlings was produced from the treatment of seeds immersed in the hormone GA3 50 ppm for 3 days. In general, a sowing density of 0.5 g/400 cm2 in top soil media and seed soaking treatment in GA3 50 ppm or LOF for 3 days can improve germination and growth of red jabon seedlings.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"3 1","pages":"162 - 170"},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84105915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-09DOI: 10.1080/21580103.2023.2220576
Muhammad Rendana, Wan Mohd Razi Idris, S. Abdul Rahim, Hazem Ghassan Abdo, Hussein Almohamad, Ahmed Abdullah Al Dughairi, Jasem A. Albanai
Abstract Mangrove trees have a crucial role in providing habitat and breeding for various aquatic species and averting coastal erosion caused by strong waves, tidal surges, and storm surges. Currently, the mangrove area along the Sungsang coast in South Sumatra, Indonesia, has been degraded by human activities like agriculture, fish ponds, and other infrastructure developments. In this study, we used the normalized difference built-up index (NDBI), the normalized difference vegetation index (NDVI), and land surface temperature (LST) analysis for observing urban development and vegetation cover in the Sungsang mangrove area. This study aimed to analyze the effects of NDBI and NDVI on the LST change in the Sungsang mangrove area. Results revealed that the mangrove vegetation significantly reduced (by 23%) during 2013–2022 years, in contrast to the built-up development and the LST gradually increased. The area with a temperature value greater than 20 °C was characterized by mangrove degradation, expanding around the peripheral area. There was a strong positive correlation between LST and NDBI (r = 0.90, p < 0.01), and a moderate correlation between LST and NDVI (r = 0.74, p < 0.05). Thus, the built-up index greatly influenced the vegetation area within the study site. This study assists the authority in comprehending their recent mangrove status and promoting sustainable actions for mangrove vegetation and urban management.
红树林在为各种水生物种提供栖息地和繁殖以及避免强浪、潮汐和风暴潮造成的海岸侵蚀方面发挥着至关重要的作用。目前，印度尼西亚南苏门答腊岛sunsang海岸的红树林已经因农业、鱼塘和其他基础设施建设等人类活动而退化。本研究采用归一化建筑指数(NDBI)、归一化植被指数(NDVI)和地表温度(LST)分析方法对松山红树林地区的城市发展和植被覆盖进行了观测。本研究旨在分析sunsang红树林地区NDBI和NDVI对地表温度变化的影响。结果表明，2013-2022年间，红树林植被显著减少(减少23%)，地表温度逐渐升高;温度值大于20°C的区域以红树林退化为特征，并向周边扩展。LST与NDBI呈极显著正相关(r = 0.90, p < 0.01)，与NDVI呈中度相关(r = 0.74, p < 0.05)。因此，建筑指数对研究场地内的植被面积影响很大。这项研究有助于当局了解其最近的红树林状况，并促进红树林植被和城市管理的可持续行动。
{"title":"Effects of the built-up index and land surface temperature on the mangrove area change along the southern Sumatra coast","authors":"Muhammad Rendana, Wan Mohd Razi Idris, S. Abdul Rahim, Hazem Ghassan Abdo, Hussein Almohamad, Ahmed Abdullah Al Dughairi, Jasem A. Albanai","doi":"10.1080/21580103.2023.2220576","DOIUrl":"https://doi.org/10.1080/21580103.2023.2220576","url":null,"abstract":"Abstract Mangrove trees have a crucial role in providing habitat and breeding for various aquatic species and averting coastal erosion caused by strong waves, tidal surges, and storm surges. Currently, the mangrove area along the Sungsang coast in South Sumatra, Indonesia, has been degraded by human activities like agriculture, fish ponds, and other infrastructure developments. In this study, we used the normalized difference built-up index (NDBI), the normalized difference vegetation index (NDVI), and land surface temperature (LST) analysis for observing urban development and vegetation cover in the Sungsang mangrove area. This study aimed to analyze the effects of NDBI and NDVI on the LST change in the Sungsang mangrove area. Results revealed that the mangrove vegetation significantly reduced (by 23%) during 2013–2022 years, in contrast to the built-up development and the LST gradually increased. The area with a temperature value greater than 20 °C was characterized by mangrove degradation, expanding around the peripheral area. There was a strong positive correlation between LST and NDBI (r = 0.90, p < 0.01), and a moderate correlation between LST and NDVI (r = 0.74, p < 0.05). Thus, the built-up index greatly influenced the vegetation area within the study site. This study assists the authority in comprehending their recent mangrove status and promoting sustainable actions for mangrove vegetation and urban management.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"208 1","pages":"179 - 189"},"PeriodicalIF":1.9,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73104313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-09DOI: 10.1080/21580103.2023.2220584
U. Chandrasekaran, S. Byeon, Kunhyo Kim, Woojin Huh, A. Han, Young-sang Lee, H. S. Kim
Abstract The photochemical process of photosynthesis is significantly influenced by the availability of nutrients. The purpose of this research is to ascertain how photosynthetic pigment function is affected by nutrient elemental changes caused by severe drought stress. Using elemental analysis, we looked at the changes in mineral nutrient composition in eastern white pine (Pinus strobus L) seedlings 32 days after drought treatment. According to our findings, severe drought resulted in a significant and non-significant decrease in the contents of Chl “b and a”, respectively. The elemental composition of iron (Fe), zinc (Zn), magnesium (Mg), potassium (K), phosphorus (P) and nitrogen (N) was measured. After severe drought treatment, leaf nutrient status showed a significant decline in total N (control-1.57 ± 0.1; drought-0.65 ± 0.07), P (control-959.4 ± 17; drought-645 ± 46), Mg (control-1030.4 ± 33; drought-750.7 ± 76), and K (control-3062.5 ± 32; drought-1853.3 ± 198), with a non-significant decrease in leaf Fe (control-120.3 ± 20; drought-98.9 ± 28) and increase in leaf Zn (control-33.49 ± 2; drought-39.05 ± 4). A positive correlation was found between the content of Fe, P, Mg, K, and N in leaf Chl “b”, but only a positive correlation was found between the content of Zn in leaf Chl “a” during severe drought. During severe drought, nutrient reallocation has a significant impact on leaf chlorophyll levels, as evidenced by this correlation.
光合作用的光化学过程受养分有效性的显著影响。本研究旨在了解严重干旱胁迫引起的营养元素变化对光合色素功能的影响。采用元素分析方法，研究了干旱处理32 d后东部白松(Pinus strobus L)幼苗矿质营养成分的变化。结果表明，严重干旱导致Chl“b”和Chl“a”含量分别显著和不显著下降。测定了铁(Fe)、锌(Zn)、镁(Mg)、钾(K)、磷(P)和氮(N)的元素组成。重度干旱处理后，叶片全氮含量显著下降(对照-1.57±0.1;干旱-0.65±0.07)，P(对照-959.4±17;干旱-645±46)，Mg(对照-1030.4±33;干旱-750.7±76)，K(对照-3062.5±32;干旱-1853.3±198)，叶片铁含量降低不显著(对照-120.3±20;干旱-98.9±28)，叶片锌增加(对照-33.49±2);干旱-39.05±4)。重度干旱条件下，叶片Chl " b "中Fe、P、Mg、K和N的含量呈显著正相关，而叶片Chl " A "中Zn的含量仅呈显著正相关。在严重干旱条件下，养分再分配对叶片叶绿素水平有显著影响。
{"title":"Influence of severe drought on mineral nutrient status in eastern white pine (Pinus strobus L)","authors":"U. Chandrasekaran, S. Byeon, Kunhyo Kim, Woojin Huh, A. Han, Young-sang Lee, H. S. Kim","doi":"10.1080/21580103.2023.2220584","DOIUrl":"https://doi.org/10.1080/21580103.2023.2220584","url":null,"abstract":"Abstract The photochemical process of photosynthesis is significantly influenced by the availability of nutrients. The purpose of this research is to ascertain how photosynthetic pigment function is affected by nutrient elemental changes caused by severe drought stress. Using elemental analysis, we looked at the changes in mineral nutrient composition in eastern white pine (Pinus strobus L) seedlings 32 days after drought treatment. According to our findings, severe drought resulted in a significant and non-significant decrease in the contents of Chl “b and a”, respectively. The elemental composition of iron (Fe), zinc (Zn), magnesium (Mg), potassium (K), phosphorus (P) and nitrogen (N) was measured. After severe drought treatment, leaf nutrient status showed a significant decline in total N (control-1.57 ± 0.1; drought-0.65 ± 0.07), P (control-959.4 ± 17; drought-645 ± 46), Mg (control-1030.4 ± 33; drought-750.7 ± 76), and K (control-3062.5 ± 32; drought-1853.3 ± 198), with a non-significant decrease in leaf Fe (control-120.3 ± 20; drought-98.9 ± 28) and increase in leaf Zn (control-33.49 ± 2; drought-39.05 ± 4). A positive correlation was found between the content of Fe, P, Mg, K, and N in leaf Chl “b”, but only a positive correlation was found between the content of Zn in leaf Chl “a” during severe drought. During severe drought, nutrient reallocation has a significant impact on leaf chlorophyll levels, as evidenced by this correlation.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"34 1","pages":"190 - 196"},"PeriodicalIF":1.9,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75602018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1080/21580103.2023.2220010
A. Putri, N. K. Kartikawati, A. Nirsatmanto, S. Sunarti, L. Haryjanto, T. Herawan, P. B. Santosa, R. S. Wahyuningtyas, F. Lestari, A. Rimbawanto
Abstract Gerunggang (Cratoxylum arborescens (Vahl) Blume) is a tree native to Indonesian peatlands that has great potential as an alternative fiber-producing species for the pulp and paper industry because it is adaptable and does not have the potential to disrupt local ecosystems. The species also contains important anti-cancer compounds for the pharmaceutical industry. These industries require large quantities of raw materials to meet their needs, which cannot be met by the supply of conventional plant seedlings. Tissue culture is one of the propagation biotechnologies that can be used as an alternative to provide more efficient germplasm. In this study, we developed a protocol for gerunggang propagation using tissue culture technique. The results showed that the combination of 1 mg/l 6-benzylamino purine (BAP) and 0.5 mg/l naphthalene acetic acid (NAA) in Murashige & Skoog media provided the fastest bud break time (2 weeks before the first subculture), with the highest shoot initiation (3.0 ± 0.2 cm), and after 4 weeks of incubation, the highest auxiliary shoot elongation (7.4 ± 0.1 cm). The significant effect of this hormone concentration also increases the nodule multiplication coefficient (NMC), which is 7.5. In vitro root response on the same propagation medium showed good growth with an average root length of 4.8 ± 0.2 cm. Acclimatization of plantlets was successful under ex vitro conditions and resulted in good growth after 2 and 3 months in the greenhouse. The advantage of applying the tissue culture method to gerunggang is that it can produce about seven times more seedlings from one explant in about 4 weeks. These results will be very useful for further research in the field and require a more intensive and comprehensive study.
{"title":"Tissue culture of gerunggang (Cratoxylum arborescens (Vahl) Blume): multipurpose native species of Indonesian peatland","authors":"A. Putri, N. K. Kartikawati, A. Nirsatmanto, S. Sunarti, L. Haryjanto, T. Herawan, P. B. Santosa, R. S. Wahyuningtyas, F. Lestari, A. Rimbawanto","doi":"10.1080/21580103.2023.2220010","DOIUrl":"https://doi.org/10.1080/21580103.2023.2220010","url":null,"abstract":"Abstract Gerunggang (Cratoxylum arborescens (Vahl) Blume) is a tree native to Indonesian peatlands that has great potential as an alternative fiber-producing species for the pulp and paper industry because it is adaptable and does not have the potential to disrupt local ecosystems. The species also contains important anti-cancer compounds for the pharmaceutical industry. These industries require large quantities of raw materials to meet their needs, which cannot be met by the supply of conventional plant seedlings. Tissue culture is one of the propagation biotechnologies that can be used as an alternative to provide more efficient germplasm. In this study, we developed a protocol for gerunggang propagation using tissue culture technique. The results showed that the combination of 1 mg/l 6-benzylamino purine (BAP) and 0.5 mg/l naphthalene acetic acid (NAA) in Murashige & Skoog media provided the fastest bud break time (2 weeks before the first subculture), with the highest shoot initiation (3.0 ± 0.2 cm), and after 4 weeks of incubation, the highest auxiliary shoot elongation (7.4 ± 0.1 cm). The significant effect of this hormone concentration also increases the nodule multiplication coefficient (NMC), which is 7.5. In vitro root response on the same propagation medium showed good growth with an average root length of 4.8 ± 0.2 cm. Acclimatization of plantlets was successful under ex vitro conditions and resulted in good growth after 2 and 3 months in the greenhouse. The advantage of applying the tissue culture method to gerunggang is that it can produce about seven times more seedlings from one explant in about 4 weeks. These results will be very useful for further research in the field and require a more intensive and comprehensive study.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"19 1","pages":"171 - 178"},"PeriodicalIF":1.9,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75073420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-07DOI: 10.1080/21580103.2023.2209108
Byeonggil Choi, Gyeongwon Baek, Hyung-Sub Kim, Yowhan Son, C. Kim
Abstract The importance of a quantitative assessment of C and N contents of dead wood is increasing in forest ecosystems. This study aimed to determine the density and carbon (C) and nitrogen (N) status of dead wood with decay class for three pine species (Pinus densiflora, Pinus rigida, and Pinus koraiensis) in southern Korea. The C concentration in dead wood was significantly different among species (P. densiflora, 50.31%; P. koraiensis, 47.22%; P. rigida, 44.96%), whereas decay class did not affect the C concentration (p > 0.05). The density and C content of dead wood in all species decreased with increasing decay class. The N concentrations of dead wood increased more rapidly in P. rigida and P. koraiensis than in P. densiflora, with an increasing decay class. Thus, the N content of dead wood was unchanged or increased in P. rigida and P. koraiensis, whereas that of P. densiflora decreased because of density reduction with increasing decay class. Our results indicate that the unchanged, increased, or decreased status of C and N in dead wood depends on the species and decay class.
{"title":"Carbon and nitrogen status by decay class in fallen dead wood of three pine species in southern Korea","authors":"Byeonggil Choi, Gyeongwon Baek, Hyung-Sub Kim, Yowhan Son, C. Kim","doi":"10.1080/21580103.2023.2209108","DOIUrl":"https://doi.org/10.1080/21580103.2023.2209108","url":null,"abstract":"Abstract The importance of a quantitative assessment of C and N contents of dead wood is increasing in forest ecosystems. This study aimed to determine the density and carbon (C) and nitrogen (N) status of dead wood with decay class for three pine species (Pinus densiflora, Pinus rigida, and Pinus koraiensis) in southern Korea. The C concentration in dead wood was significantly different among species (P. densiflora, 50.31%; P. koraiensis, 47.22%; P. rigida, 44.96%), whereas decay class did not affect the C concentration (p > 0.05). The density and C content of dead wood in all species decreased with increasing decay class. The N concentrations of dead wood increased more rapidly in P. rigida and P. koraiensis than in P. densiflora, with an increasing decay class. Thus, the N content of dead wood was unchanged or increased in P. rigida and P. koraiensis, whereas that of P. densiflora decreased because of density reduction with increasing decay class. Our results indicate that the unchanged, increased, or decreased status of C and N in dead wood depends on the species and decay class.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"73 1","pages":"155 - 161"},"PeriodicalIF":1.9,"publicationDate":"2023-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87331417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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