Pub Date : 2022-09-20DOI: 10.1080/21580103.2022.2123051
K. Yulita, Susila, H. H. Rachmat, F. G. Dwiyanti, T. D. Atikah, A. Subiakto, Bayu. A. Pratama, T. Setyawati, W. Wardani, R. A. Fambayun, N. Arrofaha, Irsyad Kamal
Abstract Dalbergia latifolia is commercial tropical tree species known for its beautiful heartwood, mainly used for furniture and musical instrument. High market demand has put concerns on its sustainability and conservation aspects in Indonesia. Ninety-five specimens of D. latifolia were collected from eight populations of Java, Lombok, and Sumbawa Island to study intraspecific variability and diversity using SRAP. One hundred and eighty SRAP loci with 54.03% ± 4.35% polymorphism obtained from PCR amplification of 10 primer combinations, with the average PIC for these primers of 0.28. Genetic diversity and variability measures were calculated using GenAlEx software indicating a relatively low-mid level of percentage of polymorphic loci (PPL) (54.03%), effective number of alleles (Ne) (1.255), Shannon information index (I) (0.242), and heterozygosity (He) (0.156) on average. The highest value (I = 0.309, He = 0.196) was observed in population P2CJ (Central Java), followed by West Java of P1WJ (I = 0.300, He = 0.191) and West Sumbawa of P7Wsumb (I = 0.257, He = 0.169), while the lowest (I = 0.202, He = 0.129) was found in West Lombok (P4WL). The genetic relationships were measured from genetic distance and identity from the two-pairwise calculation, PCoA, and STRUCTURE analysis. The relative homologous population is found between populations Central and West Java of P2CJ and P1WJ (Nei uD = 0.031), suggesting these populations have the same origin and formed one population, while the most distinct (Nei uD = 0.157) was recorded between Sumbawa regency (P6Sumb) and East Java (P3EJ). The results from PCoA showed that all individuals are placed in three groups almost in accordance with their respective islands, i.e. a group comprised inclusively trees from Sumbawa island, a group of Lombok and some Central Java trees, and a group of trees from Java with the exclusion of some trees of Central Java that were clustered with trees from Lombok island. This result was also supported by STRUCTURE analysis, which showed that Sumbawa, Lombok, and West-East Java populations formed their respective clusters, and Central Java population contains a mixture of West-East Java and Lombok populations. This may suggest evidence of complex origin, thus needing further study to clarify. It is recommended that the populations with the highest value of genetic diversity (Central and East Java) are to be maintained as the source of the gene pool for genetic enrichment programs.
黄檀(Dalbergia latifolia)是一种热带商业树种，以其美丽的心材而闻名，主要用于家具和乐器。在印度尼西亚，高市场需求引起了人们对其可持续性和保护方面的关注。在爪哇岛、龙目岛和松巴哇岛的8个居群中采集了95份大叶瓢虫标本，利用SRAP分析了其种内变异性和多样性。10个引物组合PCR扩增得到180个SRAP位点，多态性为54.03%±4.35%，平均PIC为0.28。采用GenAlEx软件计算遗传多样性和变异率，结果表明，平均多态性位点百分率(PPL)为54.03%，有效等位基因数(Ne)为1.255,Shannon信息指数(I)为0.242，杂合度(He)为0.156。中爪哇P2CJ种群最高(I = 0.309, He = 0.196)，其次是P1WJ的西爪哇(I = 0.300, He = 0.191)和P7Wsumb的西松巴哇(I = 0.257, He = 0.169)，西龙目岛(P4WL)最低(I = 0.202, He = 0.129)。通过二对计算、PCoA和结构分析的遗传距离和同源性来测定遗传关系。P2CJ和P1WJ在爪哇中部和西部种群间存在相对同源群体(Nei uD = 0.031)，表明这两个种群起源相同，形成了一个种群，而松巴哇县(P6Sumb)和东爪哇(P3EJ)之间差异最大(Nei uD = 0.157)。PCoA结果表明，所有个体几乎按照各自的岛屿分为三组，即一组包括来自松巴哇岛的树木，一组包括龙目岛和一些中爪哇树木，另一组来自爪哇，但不包括与龙目岛树木聚集在一起的中爪哇树木。这一结果也得到了结构分析的支持，松巴哇、龙目岛和西-东爪哇种群形成了各自的集群，而中爪哇种群包含西-东爪哇和龙目岛的混合种群。这可能暗示了复杂起源的证据，因此需要进一步的研究来澄清。建议保留遗传多样性最高的居群(中爪哇和东爪哇)作为遗传富集项目的基因库来源。
{"title":"Population genetic of the Indonesian rosewood (Dalbergia latifolia) from Java and West Nusa Tenggara revealed using sequence-related amplified polymorphism","authors":"K. Yulita, Susila, H. H. Rachmat, F. G. Dwiyanti, T. D. Atikah, A. Subiakto, Bayu. A. Pratama, T. Setyawati, W. Wardani, R. A. Fambayun, N. Arrofaha, Irsyad Kamal","doi":"10.1080/21580103.2022.2123051","DOIUrl":"https://doi.org/10.1080/21580103.2022.2123051","url":null,"abstract":"Abstract Dalbergia latifolia is commercial tropical tree species known for its beautiful heartwood, mainly used for furniture and musical instrument. High market demand has put concerns on its sustainability and conservation aspects in Indonesia. Ninety-five specimens of D. latifolia were collected from eight populations of Java, Lombok, and Sumbawa Island to study intraspecific variability and diversity using SRAP. One hundred and eighty SRAP loci with 54.03% ± 4.35% polymorphism obtained from PCR amplification of 10 primer combinations, with the average PIC for these primers of 0.28. Genetic diversity and variability measures were calculated using GenAlEx software indicating a relatively low-mid level of percentage of polymorphic loci (PPL) (54.03%), effective number of alleles (Ne) (1.255), Shannon information index (I) (0.242), and heterozygosity (He) (0.156) on average. The highest value (I = 0.309, He = 0.196) was observed in population P2CJ (Central Java), followed by West Java of P1WJ (I = 0.300, He = 0.191) and West Sumbawa of P7Wsumb (I = 0.257, He = 0.169), while the lowest (I = 0.202, He = 0.129) was found in West Lombok (P4WL). The genetic relationships were measured from genetic distance and identity from the two-pairwise calculation, PCoA, and STRUCTURE analysis. The relative homologous population is found between populations Central and West Java of P2CJ and P1WJ (Nei uD = 0.031), suggesting these populations have the same origin and formed one population, while the most distinct (Nei uD = 0.157) was recorded between Sumbawa regency (P6Sumb) and East Java (P3EJ). The results from PCoA showed that all individuals are placed in three groups almost in accordance with their respective islands, i.e. a group comprised inclusively trees from Sumbawa island, a group of Lombok and some Central Java trees, and a group of trees from Java with the exclusion of some trees of Central Java that were clustered with trees from Lombok island. This result was also supported by STRUCTURE analysis, which showed that Sumbawa, Lombok, and West-East Java populations formed their respective clusters, and Central Java population contains a mixture of West-East Java and Lombok populations. This may suggest evidence of complex origin, thus needing further study to clarify. It is recommended that the populations with the highest value of genetic diversity (Central and East Java) are to be maintained as the source of the gene pool for genetic enrichment programs.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"42 1","pages":"172 - 181"},"PeriodicalIF":1.9,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79384429","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 : 2022-09-02DOI: 10.1080/21580103.2022.2116113
Sumin Choi, S. Yoo, Jaeho Yeo, C. Park
Abstract Oak species are the major dominant tree species of deciduous forests, but the little study was conducted to understand the change of particulate matter concentration after changing the forest structure. This study analyzed the effects of changing forest structure (CFS) on the changes in meteorological factors and air particulate matter (PM) concentration after leaf emergence in oak-dominated forests nearby highway pollutants’ sources. In June 2019, 33% of the total trees were removed from the CFS of oak forests in the vicinity of the tollgate of Misiryeong in Goseong-gun, Gangwon-do, Korea. To understand the changes in leaf emergence between the treatment site (TRS is the site changing forest structure) and control site (CS), we investigated the foliage height profile (FHP, %) at each class of tree height in December 2019 and June 2020. The results showed that FHP (%) was lower in TRS than in CS in both months, and the FHP of the middle canopy class increased after TRS while that of the upper canopy class decreased. The correlation was significant with temperature in March (p < 0.01) and with wind speed in June (p < 0.01), indicating that CFS improved the airflow. There was no significant difference in the PM concentration between CS (PM10: 37.7 µg/m3, PM2.5: 21.1 µg/m3) and TRS (PM10: 37.5 µg/m3, PM2.5: 20.8 µg/m3) in March; however, the PM concentration in TRS (PM10: 65.0 µg/m3, PM2.5: 26.2 µg/m3) was lower than that in CS (PM10: 73.9 µg/m3, PM2.5: 29.1 µg/m3) in June. The rate of PM reduction (%) in TRS was higher in June (PM10: 11.3%, PM2.5: 10.0%) than in March (PM10: 2.3%, PM2.5: 4.0%). The low value of PM concentration in June could be related to the leaf emergence. Overall, the results indicated that meteorological factors and PM concentrations had changed in the inner part of the forest after leaf emergence and that the temperature and wind speed were strongly correlated with the PM concentration. These results suggest that CFS can change the forest structure and the airflow in oak-dominated forests, which PM can flow and settle down into the inner forest's nearby pollutants sources of a tollgate. The results provide basic information for understanding the reduction effect of PM by CFS in oak-dominated deciduous forests nearby highway pollutants source.
{"title":"Changes in particulate matter concentration and meteorological variables after changing forest structure in oak-dominated forests nearby highway tollgate","authors":"Sumin Choi, S. Yoo, Jaeho Yeo, C. Park","doi":"10.1080/21580103.2022.2116113","DOIUrl":"https://doi.org/10.1080/21580103.2022.2116113","url":null,"abstract":"Abstract Oak species are the major dominant tree species of deciduous forests, but the little study was conducted to understand the change of particulate matter concentration after changing the forest structure. This study analyzed the effects of changing forest structure (CFS) on the changes in meteorological factors and air particulate matter (PM) concentration after leaf emergence in oak-dominated forests nearby highway pollutants’ sources. In June 2019, 33% of the total trees were removed from the CFS of oak forests in the vicinity of the tollgate of Misiryeong in Goseong-gun, Gangwon-do, Korea. To understand the changes in leaf emergence between the treatment site (TRS is the site changing forest structure) and control site (CS), we investigated the foliage height profile (FHP, %) at each class of tree height in December 2019 and June 2020. The results showed that FHP (%) was lower in TRS than in CS in both months, and the FHP of the middle canopy class increased after TRS while that of the upper canopy class decreased. The correlation was significant with temperature in March (p < 0.01) and with wind speed in June (p < 0.01), indicating that CFS improved the airflow. There was no significant difference in the PM concentration between CS (PM10: 37.7 µg/m3, PM2.5: 21.1 µg/m3) and TRS (PM10: 37.5 µg/m3, PM2.5: 20.8 µg/m3) in March; however, the PM concentration in TRS (PM10: 65.0 µg/m3, PM2.5: 26.2 µg/m3) was lower than that in CS (PM10: 73.9 µg/m3, PM2.5: 29.1 µg/m3) in June. The rate of PM reduction (%) in TRS was higher in June (PM10: 11.3%, PM2.5: 10.0%) than in March (PM10: 2.3%, PM2.5: 4.0%). The low value of PM concentration in June could be related to the leaf emergence. Overall, the results indicated that meteorological factors and PM concentrations had changed in the inner part of the forest after leaf emergence and that the temperature and wind speed were strongly correlated with the PM concentration. These results suggest that CFS can change the forest structure and the airflow in oak-dominated forests, which PM can flow and settle down into the inner forest's nearby pollutants sources of a tollgate. The results provide basic information for understanding the reduction effect of PM by CFS in oak-dominated deciduous forests nearby highway pollutants source.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"24 1","pages":"150 - 159"},"PeriodicalIF":1.9,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83952703","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 : 2022-09-01DOI: 10.1080/21580103.2022.2115561
Rapeepan Kantavichai, E. Turnblom
Abstract Deep learning approaches have been adopted in Forestry research including tree classification and inventory prediction. In this study, we proposed an application of a deep learning approach, Temporal Convolution Network, on sequences of radial resistograph profiles to identify non-thrive trees and to predict wood density. Non-destructive resistance drilling measurements on South and West orientations of 274 trees in a 41-year-old Douglas-fir stand in Marion County, Oregon, USA were used as input series. Non-thrive trees were defined based on their changes in social status since establishment. Wood density was derived by X-ray densitometry from cores obtained by increment borers. Data was split for cross validation. Optimal models were fine-tuned with training and validation datasets, then run with test datasets for model evaluation metrics. Results confirmed that the application of the Temporal Convolution Network on resistograph profiles enables non-thrive tree identification with the probability, represented by the area under the Receiver Operator Characteristic curve, equal to 0.823. Temporal Convolution Network for wood density prediction showed a slight improvement in accuracy (RMSE = 18.22) compared to the traditional linear (RMSE = 20.15) and non-linear (RMSE = 20.33) regression methods. We suggest that the use of machine learning algorithms can be a promising methodology for the analysis of sequential data from non-destructive devices.
{"title":"Identifying non-thrive trees and predicting wood density from resistograph using temporal convolution network","authors":"Rapeepan Kantavichai, E. Turnblom","doi":"10.1080/21580103.2022.2115561","DOIUrl":"https://doi.org/10.1080/21580103.2022.2115561","url":null,"abstract":"Abstract Deep learning approaches have been adopted in Forestry research including tree classification and inventory prediction. In this study, we proposed an application of a deep learning approach, Temporal Convolution Network, on sequences of radial resistograph profiles to identify non-thrive trees and to predict wood density. Non-destructive resistance drilling measurements on South and West orientations of 274 trees in a 41-year-old Douglas-fir stand in Marion County, Oregon, USA were used as input series. Non-thrive trees were defined based on their changes in social status since establishment. Wood density was derived by X-ray densitometry from cores obtained by increment borers. Data was split for cross validation. Optimal models were fine-tuned with training and validation datasets, then run with test datasets for model evaluation metrics. Results confirmed that the application of the Temporal Convolution Network on resistograph profiles enables non-thrive tree identification with the probability, represented by the area under the Receiver Operator Characteristic curve, equal to 0.823. Temporal Convolution Network for wood density prediction showed a slight improvement in accuracy (RMSE = 18.22) compared to the traditional linear (RMSE = 20.15) and non-linear (RMSE = 20.33) regression methods. We suggest that the use of machine learning algorithms can be a promising methodology for the analysis of sequential data from non-destructive devices.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"63 1","pages":"144 - 149"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81386029","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 : 2022-08-30DOI: 10.1080/21580103.2022.2115150
Y. Hadiyan, Widiyatno, I. Nurtjahjaningsih, M. Na’iem, B. Herdyantara, Isno
Abstract Gelam (Melaleuca cajuputi subsp. cumingiana) is an important pioneer species of tropical peat swamp forests in Indonesia. We collected 95 DNA of dry leaf samples in four provenances in Indonesia (South Sumatera, Bangka, South Kalimantan, Papua) and 8 SSR markers were used to analyze the genetic correlation and genetic diversity which plays an important role in providing survival, reducing inbreeding, and preventing inferior offspring to meet forest rehabilitation needs. Our study revealed that the genetic diversity of gelam was comparably high due to geographical isolation and divided into five clusters. The genetic diversity among provenances and individuals within provenances was 7.11% and 14.85%, respectively. Papua showed the highest genetic diversity, based on the effective number of alleles, Shannon index, expected heterozygosity, allelic richness, and number of private alleles. The highest heterozygosity and rare alleles were found in South Kalimantan and Bangka. However, the coefficient of inbreeding was significant within provenances (p < 0.05) for all provenances, indicating inbreeding. We detected significant differences in heterozygosity using a two-phase model and a stepwise mutation model in a bottleneck test, although there was no significant difference when using an infinite allele model. These results suggest that the high genetic diversity among provenances could promote the future breeding programs and develop conservation strategies for gelam.
{"title":"Genetic diversity and structure among four provenances of Gelam (Melaleuca cajuputi subsp. cumingiana) and implications for gene conservation and rehabilitation of degraded peat swamp forest in Indonesia","authors":"Y. Hadiyan, Widiyatno, I. Nurtjahjaningsih, M. Na’iem, B. Herdyantara, Isno","doi":"10.1080/21580103.2022.2115150","DOIUrl":"https://doi.org/10.1080/21580103.2022.2115150","url":null,"abstract":"Abstract Gelam (Melaleuca cajuputi subsp. cumingiana) is an important pioneer species of tropical peat swamp forests in Indonesia. We collected 95 DNA of dry leaf samples in four provenances in Indonesia (South Sumatera, Bangka, South Kalimantan, Papua) and 8 SSR markers were used to analyze the genetic correlation and genetic diversity which plays an important role in providing survival, reducing inbreeding, and preventing inferior offspring to meet forest rehabilitation needs. Our study revealed that the genetic diversity of gelam was comparably high due to geographical isolation and divided into five clusters. The genetic diversity among provenances and individuals within provenances was 7.11% and 14.85%, respectively. Papua showed the highest genetic diversity, based on the effective number of alleles, Shannon index, expected heterozygosity, allelic richness, and number of private alleles. The highest heterozygosity and rare alleles were found in South Kalimantan and Bangka. However, the coefficient of inbreeding was significant within provenances (p < 0.05) for all provenances, indicating inbreeding. We detected significant differences in heterozygosity using a two-phase model and a stepwise mutation model in a bottleneck test, although there was no significant difference when using an infinite allele model. These results suggest that the high genetic diversity among provenances could promote the future breeding programs and develop conservation strategies for gelam.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"24 1","pages":"135 - 143"},"PeriodicalIF":1.9,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89578986","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 : 2022-07-03DOI: 10.1080/21580103.2022.2090452
Murzabyek Sarkhad, F. Ishiguri, I. Nezu, H. Aiso, A. Ngadianto, Bayasaa Tumenjargal, Bayartsetseg Baasan, Ganbaatar Chultem, J. Ohshima, S. Yokota
Abstract To effectively and sustainably utilize wood resources from boreal forests in Mongolia, anatomical characteristics, tracheid morphology, cell proportion, annual ring width, and latewood percentage were preliminary determined in Pinus sylvestris, Pinus sibirica, Picea obovata, and Larix sibirica trees naturally growing in Mongolia. Based on the observation, the anatomical characteristics of four common Mongolian softwoods were the same as those previously observed in the same species or the same genus species. Based on the parameters of the Gompertz functions for annual ring width, silvicultural management, such as thinning timing and harvesting age, should be considered depending on the species when the plantation is established. The results of the model selection for relationships between latewood percentage and basic density indicated that the increase ratio of basic density corresponded to an increase of latewood percentage is almost the same irrespective of species, although there are species-specific values of basic density corresponding to specific latewood percentages. The results obtained in the present study contribute effective and sustainable utilization of wood resources from Mongolian forestry.
{"title":"Preliminary evaluation of anatomical characteristics of four common Mongolian softwoods","authors":"Murzabyek Sarkhad, F. Ishiguri, I. Nezu, H. Aiso, A. Ngadianto, Bayasaa Tumenjargal, Bayartsetseg Baasan, Ganbaatar Chultem, J. Ohshima, S. Yokota","doi":"10.1080/21580103.2022.2090452","DOIUrl":"https://doi.org/10.1080/21580103.2022.2090452","url":null,"abstract":"Abstract To effectively and sustainably utilize wood resources from boreal forests in Mongolia, anatomical characteristics, tracheid morphology, cell proportion, annual ring width, and latewood percentage were preliminary determined in Pinus sylvestris, Pinus sibirica, Picea obovata, and Larix sibirica trees naturally growing in Mongolia. Based on the observation, the anatomical characteristics of four common Mongolian softwoods were the same as those previously observed in the same species or the same genus species. Based on the parameters of the Gompertz functions for annual ring width, silvicultural management, such as thinning timing and harvesting age, should be considered depending on the species when the plantation is established. The results of the model selection for relationships between latewood percentage and basic density indicated that the increase ratio of basic density corresponded to an increase of latewood percentage is almost the same irrespective of species, although there are species-specific values of basic density corresponding to specific latewood percentages. The results obtained in the present study contribute effective and sustainable utilization of wood resources from Mongolian forestry.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"91 1","pages":"87 - 97"},"PeriodicalIF":1.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74206788","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 : 2022-07-03DOI: 10.1080/21580103.2022.2104935
N. Lee, P. Yeon
Abstract The purpose of this study is to identify the needs and suggest a revitalization plan for School Forest Welfare Services in Korea which is defined as “school-based services that provide forest education, forest healing, and cultural and recreational activities in the forest by creating, managing, and utilizing local or in-school forest environments to help children and adolescents develop and improve their quality of life.” To this end, using a mixed method, in-depth interviews and needs surveys were conducted with School Forest Welfare Service experts and teachers and parents of middle and high school students to understand the current status of School Forest Welfare Services and to identify their needs. As regards the current status, the environment for the services was assessed at the “middle” level while the forest welfare program was assessed at the “low” level. On the other hand, all the needs asked were found to be at a “high” level; especially, the needs for the “forest therapy” program, both for the selected group of and all students, were the strongest. In regard to revitalization, “programs linked to regular school curriculum,” “policies and budgets,” “green zone in school area,” and “expert supports by forest healing instructors and forest interpreters” were found to be demanded mostly. As a conclusion of the in-depth interviews and needs surveys, a plan to revitalize School Forest Welfare Services has been derived, which includes such objectives as; (1) to strengthen awareness of the necessity (assigning experts within the responsible institution to provide expertise, strengthening awareness among principals, teachers, and parents, and building social consensus with active publicity), (2) to prepare policy and legal basis, and (3) to establish a support system. This study was conducted to revitalize School Forest Welfare Services for adolescents in Korea, but it is hoped that School Forest Welfare Services will be developed and widely implemented for many children and adolescents around the world through diverse further studies.
{"title":"Needs analysis and revitalization planning for School Forest Welfare Services using mixed method","authors":"N. Lee, P. Yeon","doi":"10.1080/21580103.2022.2104935","DOIUrl":"https://doi.org/10.1080/21580103.2022.2104935","url":null,"abstract":"Abstract The purpose of this study is to identify the needs and suggest a revitalization plan for School Forest Welfare Services in Korea which is defined as “school-based services that provide forest education, forest healing, and cultural and recreational activities in the forest by creating, managing, and utilizing local or in-school forest environments to help children and adolescents develop and improve their quality of life.” To this end, using a mixed method, in-depth interviews and needs surveys were conducted with School Forest Welfare Service experts and teachers and parents of middle and high school students to understand the current status of School Forest Welfare Services and to identify their needs. As regards the current status, the environment for the services was assessed at the “middle” level while the forest welfare program was assessed at the “low” level. On the other hand, all the needs asked were found to be at a “high” level; especially, the needs for the “forest therapy” program, both for the selected group of and all students, were the strongest. In regard to revitalization, “programs linked to regular school curriculum,” “policies and budgets,” “green zone in school area,” and “expert supports by forest healing instructors and forest interpreters” were found to be demanded mostly. As a conclusion of the in-depth interviews and needs surveys, a plan to revitalize School Forest Welfare Services has been derived, which includes such objectives as; (1) to strengthen awareness of the necessity (assigning experts within the responsible institution to provide expertise, strengthening awareness among principals, teachers, and parents, and building social consensus with active publicity), (2) to prepare policy and legal basis, and (3) to establish a support system. This study was conducted to revitalize School Forest Welfare Services for adolescents in Korea, but it is hoped that School Forest Welfare Services will be developed and widely implemented for many children and adolescents around the world through diverse further studies.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"134 1","pages":"98 - 107"},"PeriodicalIF":1.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77861012","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 : 2022-07-03DOI: 10.1080/21580103.2022.2104936
Rachid El Haddadi, Abdelalli El Mekkaoui, A. Zouahri, A. Ouazzani Touhami, A. Douira
Abstract Tetraclinis articulata (Vahl.) Master or thuya is facing several constraints to its successful natural regeneration in Morocco. Containerized seedlings plantation is the only method adopted in thuya forest restoration programs and post-transplant water stress produces high seedling mortality after the first summer following outplanting. There is thus a real need to improve nursery seedlings quality, especially enhancing the growth of the root system by improving the water holding capacity of the root plug. Our aim was to assess the effects of clay on the water holding capacity of the growing media and on various morphological and physiological traits of T. articulata seedlings in the nursery. T.articula seedlings were raised in nursery using nine composite substrates; seedlings quality was evaluated according to their morpho-physiological and performance attributes. This investigation determined that a clay content of 20–25% constitutes an optimum for obtaining seedlings with a good root growth potential and high root viability. Excessive clay content in the growing media resulted in water-logged root plug decreasing root growth potential. This investigation found that morphological attribute as Root Collar Diameter and Root/Shoot ratio could be considered good predictors of Root Growth Potential.
摘要:四线虫(Tetraclinis articulata)Master or thuya在摩洛哥成功的自然再生面临着一些限制。集装箱育苗是土雅森林恢复计划中唯一采用的方法，移栽后的水分胁迫导致外植后第一个夏季幼苗死亡率高。因此，迫切需要提高苗木质量，特别是通过提高根栓的持水能力来促进根系的生长。本研究的目的是评估粘土对育苗培养基持水能力和不同形态生理性状的影响。采用9种复合基质育苗;根据幼苗的形态生理属性和性能属性对其品质进行评价。本研究确定，粘土含量为20-25%是获得具有良好根系生长潜力和高根系活力的幼苗的最佳条件。生长介质中粘土含量过高，导致根系堵塞淹水，根系生长势下降。本研究发现，根颈直径和根冠比等形态属性可以很好地预测根系生长势。
{"title":"Effect of growing media on morpho-physiological quality attributes of Tetraclinis articulata seedlings","authors":"Rachid El Haddadi, Abdelalli El Mekkaoui, A. Zouahri, A. Ouazzani Touhami, A. Douira","doi":"10.1080/21580103.2022.2104936","DOIUrl":"https://doi.org/10.1080/21580103.2022.2104936","url":null,"abstract":"Abstract Tetraclinis articulata (Vahl.) Master or thuya is facing several constraints to its successful natural regeneration in Morocco. Containerized seedlings plantation is the only method adopted in thuya forest restoration programs and post-transplant water stress produces high seedling mortality after the first summer following outplanting. There is thus a real need to improve nursery seedlings quality, especially enhancing the growth of the root system by improving the water holding capacity of the root plug. Our aim was to assess the effects of clay on the water holding capacity of the growing media and on various morphological and physiological traits of T. articulata seedlings in the nursery. T.articula seedlings were raised in nursery using nine composite substrates; seedlings quality was evaluated according to their morpho-physiological and performance attributes. This investigation determined that a clay content of 20–25% constitutes an optimum for obtaining seedlings with a good root growth potential and high root viability. Excessive clay content in the growing media resulted in water-logged root plug decreasing root growth potential. This investigation found that morphological attribute as Root Collar Diameter and Root/Shoot ratio could be considered good predictors of Root Growth Potential.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"241 1","pages":"108 - 117"},"PeriodicalIF":1.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76969405","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 : 2022-07-03DOI: 10.1080/21580103.2022.2110164
Joung A. Son, I. Kim, Hanna Chang
Abstract Tree planting is a countermeasure used to mitigate the effects of the high concentrations of atmospheric particulate matter (PM), because trees have a strong ability to adsorb PM. However, owing to the limited information on PM accumulation on leaves throughout the year, guidelines for the implementation of urban forests cannot be provided. Therefore, in this study, we measured PM accumulation in leaves to compare the PM-reducing ability of four common species (Metasequoia glyptostroboides, Prunus yedoensis, Spirea prunifolia f. simpliciflora, and Zelkova serrata) during one growing season. We collected leaves almost every two weeks from 7 May to 23 October 2019, in Seoul Forest Park. We then measured the PM quantities on the leaves before and after rainfall (28 mm/h) to determine the amount of PM that washed off. We found that the average PM10 (PM <10 µm in diameter) accumulation on the leaves of S. prunifolia f. simpliciflora, Z. serrata, M. glyptostroboides, and P. yedoensis during one growing season was 68.1, 58.3, 43.5, and 28.2 mg/m2, respectively. The average PM2.5 (PM <3 µm) accumulation on the leaves of S. prunifolia f. simpliciflora, Z. serrata, M. glyptostroboides, and P. yedoensis was 18.2, 11.6, 7.8, and 6.5 mg/m2, respectively. However, the accumulation of both PM10 and PM2.5 on the leaves of the four species fluctuated during the sampling period. The average ratio of PM2.5 to PM10 accumulation in the leaves of S. prunifolia f. simpliciflora and P. yedoensis was significantl higher than that of Z. serrata and M. glyptostroboides; however, this ratio fluctuated throughout the sampling period. Rainfall considerably reduced the levels of PM10 on the leaves of P. yedoensis and PM2.5 on the leaves of M. glyptostroboides. We found no significant removal of PM from the leaves of other species. These results indicated that the PM-reducing ability of trees varies between species and over time. Therefore, urban forests should be managed with a high diversity of tree species.
植树造林是缓解高浓度大气颗粒物(PM)影响的一种对策，因为树木具有很强的吸附PM的能力。但是，由于关于全年叶片上颗粒物积累的资料有限，因此无法提供实施城市森林的准则。因此，在本研究中，我们测量了四种常见树种(水杉、叶李、单叶Spirea prunifolia f. yedoensis、泽尔科瓦(Zelkova serrata))在一个生长季节内叶片中的PM积累量，以比较它们的PM还原能力。从2019年5月7日至10月23日，我们几乎每两周在首尔森林公园收集一次树叶。然后，我们测量了降雨(28毫米/小时)前后叶片上的PM量，以确定被洗掉的PM量。结果表明，单叶扁柏、剑齿苋、草叶扁柏和叶红叶扁柏的PM10(直径<10µm)在生长季的平均累积量分别为68.1、58.3、43.5和28.2 mg/m2。PM2.5 (PM <3µm)在单叶李、锯齿木、草木和紫杉叶片上的平均累积量分别为18.2、11.6、7.8和6.5 mg/m2。然而，在采样期间，4种植物叶片上PM10和PM2.5的积累都存在波动。单叶扁柏和红叶扁柏叶片中PM2.5与PM10的平均积累比显著高于锯齿扁柏和草叶扁柏;然而，这一比例在整个抽样期间有所波动。降雨显著降低了叶青树叶片上的PM10和草叶上的PM2.5水平。我们发现其他物种的叶片中没有明显的PM去除。这些结果表明，树木减少pm的能力因物种和时间而异。因此，城市森林应以高度多样化的树种进行管理。
{"title":"Seasonal variations in accumulated particulate matter on leaves of four major tree species in Korea","authors":"Joung A. Son, I. Kim, Hanna Chang","doi":"10.1080/21580103.2022.2110164","DOIUrl":"https://doi.org/10.1080/21580103.2022.2110164","url":null,"abstract":"Abstract Tree planting is a countermeasure used to mitigate the effects of the high concentrations of atmospheric particulate matter (PM), because trees have a strong ability to adsorb PM. However, owing to the limited information on PM accumulation on leaves throughout the year, guidelines for the implementation of urban forests cannot be provided. Therefore, in this study, we measured PM accumulation in leaves to compare the PM-reducing ability of four common species (Metasequoia glyptostroboides, Prunus yedoensis, Spirea prunifolia f. simpliciflora, and Zelkova serrata) during one growing season. We collected leaves almost every two weeks from 7 May to 23 October 2019, in Seoul Forest Park. We then measured the PM quantities on the leaves before and after rainfall (28 mm/h) to determine the amount of PM that washed off. We found that the average PM10 (PM <10 µm in diameter) accumulation on the leaves of S. prunifolia f. simpliciflora, Z. serrata, M. glyptostroboides, and P. yedoensis during one growing season was 68.1, 58.3, 43.5, and 28.2 mg/m2, respectively. The average PM2.5 (PM <3 µm) accumulation on the leaves of S. prunifolia f. simpliciflora, Z. serrata, M. glyptostroboides, and P. yedoensis was 18.2, 11.6, 7.8, and 6.5 mg/m2, respectively. However, the accumulation of both PM10 and PM2.5 on the leaves of the four species fluctuated during the sampling period. The average ratio of PM2.5 to PM10 accumulation in the leaves of S. prunifolia f. simpliciflora and P. yedoensis was significantl higher than that of Z. serrata and M. glyptostroboides; however, this ratio fluctuated throughout the sampling period. Rainfall considerably reduced the levels of PM10 on the leaves of P. yedoensis and PM2.5 on the leaves of M. glyptostroboides. We found no significant removal of PM from the leaves of other species. These results indicated that the PM-reducing ability of trees varies between species and over time. Therefore, urban forests should be managed with a high diversity of tree species.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"84 1","pages":"118 - 126"},"PeriodicalIF":1.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76644433","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 : 2022-07-03DOI: 10.1080/21580103.2022.2115149
J. Hackman, T. Ozyhar, S. Chien, F. Hilty, A. Woodley, R. Cook
Abstract Synthetic hydroxyapatite (HA) was compared against triple superphosphate (TSP) and two unprocessed phosphate rocks (PR1, PR2) to (1) quantify and assess a synthetic lamellar structured-HA for its solubility and diffusiveness under acidic, sandy, soil conditions, (2) Evaluate synthetic lamellar structured-HA as a phosphorus early rotation fertilizer for Eucalyptus saplings. Soil incubation experiments verified that HA released more diffusive phosphorus into the soil than non-synthetic phosphate rock and had similar amounts of diffusive phosphorus as TSP. The solubility of HA at pH 3 and pH 6 was higher than that of raw ground phosphate rocks (apatites). Total dry-matter yield (DMY) and shoot-length of Eucalyptus seedlings grown for 154 days in acid soil (pH 4.9) were increased significantly by the application of HA compared to the control, PR2, and mixed (HA + PR2). The lack of a DMY response using TSP indicates that phosphorus may not have been the limiting factor. However, considering TSP and HA had similar solubilities and released diffusive phosphorus at similar levels, the only variable we failed to control for was the CaCO3 provided by the HA and not the TSP. Further experimentation is needed to confirm this hypothesis. Overall, HA is a promising candidate to supplement traditional phosphorus fertilizers for acidic sandy Eucalyptus silviculture.
{"title":"Evaluation of synthetic hydroxyapatite as a potential phosphorus fertilizer for application in Forest plantations","authors":"J. Hackman, T. Ozyhar, S. Chien, F. Hilty, A. Woodley, R. Cook","doi":"10.1080/21580103.2022.2115149","DOIUrl":"https://doi.org/10.1080/21580103.2022.2115149","url":null,"abstract":"Abstract Synthetic hydroxyapatite (HA) was compared against triple superphosphate (TSP) and two unprocessed phosphate rocks (PR1, PR2) to (1) quantify and assess a synthetic lamellar structured-HA for its solubility and diffusiveness under acidic, sandy, soil conditions, (2) Evaluate synthetic lamellar structured-HA as a phosphorus early rotation fertilizer for Eucalyptus saplings. Soil incubation experiments verified that HA released more diffusive phosphorus into the soil than non-synthetic phosphate rock and had similar amounts of diffusive phosphorus as TSP. The solubility of HA at pH 3 and pH 6 was higher than that of raw ground phosphate rocks (apatites). Total dry-matter yield (DMY) and shoot-length of Eucalyptus seedlings grown for 154 days in acid soil (pH 4.9) were increased significantly by the application of HA compared to the control, PR2, and mixed (HA + PR2). The lack of a DMY response using TSP indicates that phosphorus may not have been the limiting factor. However, considering TSP and HA had similar solubilities and released diffusive phosphorus at similar levels, the only variable we failed to control for was the CaCO3 provided by the HA and not the TSP. Further experimentation is needed to confirm this hypothesis. Overall, HA is a promising candidate to supplement traditional phosphorus fertilizers for acidic sandy Eucalyptus silviculture.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"22 5 1","pages":"127 - 134"},"PeriodicalIF":1.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79561597","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 : 2022-04-03DOI: 10.1080/21580103.2022.2072406
Jeongmook Park, Y. Lee, Jung soo Lee
Abstract Securing reliable data on forest areas is necessary for the establishment of various policies and decision-making for forest administration. In this study, the definition of forest, minimum partitioning criteria, purpose of production, production method, and period of update were analyzed, which were prescribed for the statistics (Forest Basic Statistics [FBS] and Cadastral Statistical Annual Report [CSAR]) and spatial data (digital forest type map, sub-divided land cover map, continuous cadastral map). Forested area was calculated according to the statistics and spatial data for Wonju, Gangwon-do, and the forest area between statistics and spatial data was quantitatively compared. In terms of the definition of forest and minimum partitioning criteria, the FBS and digital forest type maps were similar, and the land cover map, CSAR, and continuous cadastral maps were different in these aspects. About forest area, there was a difference in each forestry data. The highest was CSAR(61,406 ha) and the lowest was Sub-divided Land Cover Map(57,818 ha). This is thought to be because there were some types of spatial areas that were classified as forest in the digital forest type map but classified as cropland, grassland, settlement, and bare land in the sub-divided land cover map and continuous cadastral map. Moreover, in the case of the continuous cadastral map, it is thought that there was an error in the area calculation due to differences between the land category in the map and the actual land use status, which led to differences in the calculated area between different types of spatial data. For future statistics and spatial data, appropriate measures should be established to address the issue of the differences between the calculated area due to misclassification during visual reading, and the difference between the land category in the map and the actual land use status. The calculated forest area should be used for research on the definition of forest, the purposes of map production, and production methods for each type of information and data
{"title":"A comparative analysis of forest area differences between statistics information and spatial thematic maps","authors":"Jeongmook Park, Y. Lee, Jung soo Lee","doi":"10.1080/21580103.2022.2072406","DOIUrl":"https://doi.org/10.1080/21580103.2022.2072406","url":null,"abstract":"Abstract Securing reliable data on forest areas is necessary for the establishment of various policies and decision-making for forest administration. In this study, the definition of forest, minimum partitioning criteria, purpose of production, production method, and period of update were analyzed, which were prescribed for the statistics (Forest Basic Statistics [FBS] and Cadastral Statistical Annual Report [CSAR]) and spatial data (digital forest type map, sub-divided land cover map, continuous cadastral map). Forested area was calculated according to the statistics and spatial data for Wonju, Gangwon-do, and the forest area between statistics and spatial data was quantitatively compared. In terms of the definition of forest and minimum partitioning criteria, the FBS and digital forest type maps were similar, and the land cover map, CSAR, and continuous cadastral maps were different in these aspects. About forest area, there was a difference in each forestry data. The highest was CSAR(61,406 ha) and the lowest was Sub-divided Land Cover Map(57,818 ha). This is thought to be because there were some types of spatial areas that were classified as forest in the digital forest type map but classified as cropland, grassland, settlement, and bare land in the sub-divided land cover map and continuous cadastral map. Moreover, in the case of the continuous cadastral map, it is thought that there was an error in the area calculation due to differences between the land category in the map and the actual land use status, which led to differences in the calculated area between different types of spatial data. For future statistics and spatial data, appropriate measures should be established to address the issue of the differences between the calculated area due to misclassification during visual reading, and the difference between the land category in the map and the actual land use status. The calculated forest area should be used for research on the definition of forest, the purposes of map production, and production methods for each type of information and data","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":"41 1","pages":"76 - 85"},"PeriodicalIF":1.9,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85016774","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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