A very significant development in the global airport industry in recent times has been the introduction and use of green renewable energy systems, such as solar and wind powered hybrid systems. Airports are very energy intensive and have a significant carbon footprint. Thus, the use of renewable green energy is enabling airports to reduce their carbon footprint thereby mitigating their environmental impact. Using an in-depth instrumental case study research design, this study has examined the use of renewable green energy systems by Delhi’s Indira Gandhi Airport and Mumbai’s Chhatrapati Shivaji Maharaj International Airport. The case study revealed that Chhatrapati Shivaji Maharaj International Airport has entirely switched to green sources for its energy consumption needs, thereby making it one of India’s 100 per cent sustainable airports. In April 2022, Mumbai Airport enhanced its usage of green energy when it deployed a 10Kwp Hybrid SolarMill consisting of 2Kwp TurboMill (three Savonious vertical axis type wind turbine (VAWT) and 8Kwp Solar PV modules. The new system has enabled Chhatrapati Shivaji Maharaj International Airport to reduce its carbon footprint as the new system will reduce its carbon dioxide (CO2) emissions by 120,000 tonnes per year. In 2022, Delhi’s Indira Gandhi Airport became the first airport in India to be powered entirely by hydro and solar energy sources. This energy-related measure is one of the airport’s key actions to realize its 2030 objective of being a Net Zero Carbon Emission Airport. By moving to renewable sources for its energy requirements, the airport is expected to reduce its carbon footprint by around 200,000 tons of carbon dioxide (CO2) emissions per annum. The use of green energy sources has helped the airports to mitigate the harmful environmental impact from the use of fossil-based fuels.
{"title":"Towards Carbon Neutral Airport Operations Through the Use of Renewable Energy Sources: The Case of Chhatrapati Shivaji Maharaj and Indira Gandhi International Airports, India","authors":"Glenn Baxter","doi":"10.22161/ijeab.82.9","DOIUrl":"https://doi.org/10.22161/ijeab.82.9","url":null,"abstract":"A very significant development in the global airport industry in recent times has been the introduction and use of green renewable energy systems, such as solar and wind powered hybrid systems. Airports are very energy intensive and have a significant carbon footprint. Thus, the use of renewable green energy is enabling airports to reduce their carbon footprint thereby mitigating their environmental impact. Using an in-depth instrumental case study research design, this study has examined the use of renewable green energy systems by Delhi’s Indira Gandhi Airport and Mumbai’s Chhatrapati Shivaji Maharaj International Airport. The case study revealed that Chhatrapati Shivaji Maharaj International Airport has entirely switched to green sources for its energy consumption needs, thereby making it one of India’s 100 per cent sustainable airports. In April 2022, Mumbai Airport enhanced its usage of green energy when it deployed a 10Kwp Hybrid SolarMill consisting of 2Kwp TurboMill (three Savonious vertical axis type wind turbine (VAWT) and 8Kwp Solar PV modules. The new system has enabled Chhatrapati Shivaji Maharaj International Airport to reduce its carbon footprint as the new system will reduce its carbon dioxide (CO2) emissions by 120,000 tonnes per year. In 2022, Delhi’s Indira Gandhi Airport became the first airport in India to be powered entirely by hydro and solar energy sources. This energy-related measure is one of the airport’s key actions to realize its 2030 objective of being a Net Zero Carbon Emission Airport. By moving to renewable sources for its energy requirements, the airport is expected to reduce its carbon footprint by around 200,000 tons of carbon dioxide (CO2) emissions per annum. The use of green energy sources has helped the airports to mitigate the harmful environmental impact from the use of fossil-based fuels.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90984939","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}
With the increasing attention paid to ecological and environmental issues, the monitoring and exploration of carbon storage have become increasingly important in ecosystems, attracting numerous attentions from academia and industry. Based on the era background of "double carbon", this study first discussed and sorted out the relevant theories, analyzed the changes and characteristics of various categories in the study area based on land use data, and analyzed the spatial-temporal changes of carbon storages in Maoming City from 1980 to 2020 through transfer matrix and dynamic degree analysis and the InVEST model to explore the impact of land use change on carbon storages. The analysis results show that there is a positive correlation between carbon storage and vegetation coverage, and the transfer of arable land and forest land is the main reason for the decrease in carbon storage. Therefore, it is recommended to pay attention to optimizing land use structures and controlling the expansion of construction land caused by urbanization in order to achieve the goal of protecting the ecological environment.
{"title":"A Change Analysis of Land Use and Carbon Storage in Maoming Based on the InVEST Model and GIS","authors":"Wanying Liang, Ruei-Yuan Wang","doi":"10.22161/ijeab.84.10","DOIUrl":"https://doi.org/10.22161/ijeab.84.10","url":null,"abstract":"With the increasing attention paid to ecological and environmental issues, the monitoring and exploration of carbon storage have become increasingly important in ecosystems, attracting numerous attentions from academia and industry. Based on the era background of \"double carbon\", this study first discussed and sorted out the relevant theories, analyzed the changes and characteristics of various categories in the study area based on land use data, and analyzed the spatial-temporal changes of carbon storages in Maoming City from 1980 to 2020 through transfer matrix and dynamic degree analysis and the InVEST model to explore the impact of land use change on carbon storages. The analysis results show that there is a positive correlation between carbon storage and vegetation coverage, and the transfer of arable land and forest land is the main reason for the decrease in carbon storage. Therefore, it is recommended to pay attention to optimizing land use structures and controlling the expansion of construction land caused by urbanization in order to achieve the goal of protecting the ecological environment.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83857185","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}
This study aims to determine the factors that affect the growth and development of corn plants (zea mays l.) in the sub-districts of Adiankoting, Sipoholon and Paranginan. This study uses the Statistical Package Social Sciences (SPSS) stastika formula consisting of each sub-district using 50 questionnaires from Adiankoting sub-district 50 questionnaires, from Sipoholon sub-district 50 questionnaires and from Paranginan sub-district 50 questionnaires, and the total amount to 150 questionnaires. This research was conducted by a direct field survey system and interviews with respondents or corn farmers in each of the 150 farmers, the results of this study indicate that in each sub-district there are different and some are the same in terms of altitude, land area, planting distance, age of farmers and others. The three sub-districts are dominated by male farmers, mostly only diparanginan more female farmers but maybe in other areas or in other villages there may also be many female farmers. I conducted this research during October to November 2021 where there is still strict health protocol supervision because corona has spread everywhere, so caution is needed. In the Adiankoting, Sipoholon and Paranginan sub-districts, the various types of fertilizers used and the way they are applied and pests and diseases are too many to attack in these areas.
本研究旨在确定影响Adiankoting、Sipoholon和Paranginan街道玉米植株(zea mays l.)生长发育的因素。本研究采用SPSS (Statistical Package Social Sciences)统计公式，由各街道各50份问卷组成，分别来自Adiankoting街道50份、Sipoholon街道50份、Paranginan街道50份，共150份问卷。本研究采用现场直接调查法，对150户农户中的玉米农户进行访谈，研究结果表明，各街道在海拔高度、土地面积、种植距离、农户年龄等方面存在差异，有的相同。这三个街道以男性农民为主，大多数只有更多的女性农民，但可能在其他地区或其他村庄也有很多女性农民。我在2021年10月至11月期间进行了这项研究，由于冠状病毒已经到处传播，因此仍然有严格的卫生方案监督，因此需要谨慎。在Adiankoting、Sipoholon和Paranginan街道，这些地区使用的各种肥料及其施用方式和病虫害太多，难以对付。
{"title":"Analysis of Factors Affecting the Growth and Development of Maize Crops (Zea Mays L) in Adiankoting Sipoholon and Paranginan Districts","authors":"Nixson Panjaitan, Saudur Simangunsong, Lambok Simatupang, Weslyh Purba","doi":"10.22161/ijeab.85.2","DOIUrl":"https://doi.org/10.22161/ijeab.85.2","url":null,"abstract":"This study aims to determine the factors that affect the growth and development of corn plants (zea mays l.) in the sub-districts of Adiankoting, Sipoholon and Paranginan. This study uses the Statistical Package Social Sciences (SPSS) stastika formula consisting of each sub-district using 50 questionnaires from Adiankoting sub-district 50 questionnaires, from Sipoholon sub-district 50 questionnaires and from Paranginan sub-district 50 questionnaires, and the total amount to 150 questionnaires. This research was conducted by a direct field survey system and interviews with respondents or corn farmers in each of the 150 farmers, the results of this study indicate that in each sub-district there are different and some are the same in terms of altitude, land area, planting distance, age of farmers and others. The three sub-districts are dominated by male farmers, mostly only diparanginan more female farmers but maybe in other areas or in other villages there may also be many female farmers. I conducted this research during October to November 2021 where there is still strict health protocol supervision because corona has spread everywhere, so caution is needed. In the Adiankoting, Sipoholon and Paranginan sub-districts, the various types of fertilizers used and the way they are applied and pests and diseases are too many to attack in these areas.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135496836","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}
Rasha N. Arafa, Sayed A.A. Elsayh, Marwa M. Abdalgaleel, Salwa El-Habashy, Emadeldin A.H. Ahmed, Eman H. Afifi, Alaa N. Draz, Rabab W. El Aramany, Abdallah Sharkh, Mohamed T. Abd El-Kader, Ahmed A.M. Baraka, Dosoky Hoda A.A.
The purpose of this research was to develop a micro-propagation method for the date palm Zaghlol cv. using juvenile leaves. To produce the necessary results, different plant growth regulator combinations were used. The leaves were grown on MS medium supplemented with PVP to prevent the explants from browning. The results showed that adding PVP at a concentration of 1.0 g/l considerably reduced browning. On the induction medium, callus formation occurred during the fourth week of culture; however, callus formation (87.5%) was more prevalent on the ¾ MS medium containing with 10.0 mg/l NAA, 1.0 mg/l BA and 2.0 mg/l 2ip. The greatest development of embryogenic callus (94.50%) occurred on a ¾ MS medium supplemented with 5.0 mg/l NAA and 2.0 mg/l BA. The largest fresh callus weight (3.53 g) was produced by this treatment after four months in culture. On MS medium supplemented with 2.0 TDZ, 1.5 BA and 0.5 NAA, which was regarded as the optimum medium for increasing the number of embryos to 32.10 embryos/culture, the best results (65.67%) were obtained. Further investigation into the stimulation and development of somatic embryogenesis involved using MS basal medium supplemented with BA at 0.5 mg/l, kin at 0.1 mg/l and NAA at 0.05 mg/l; this treatment formed the most leaves (20.11 leaf/cluster). The cluster of shoots grown on MS basal medium supplemented with BA at 2.0 mg/l and NAA at 0.5 mg/l had the highest leaf number (34.25 leaf/cluster) and leaves length values after three sub-cultures (4.75 cm). The DNA-based fingerprinting technology ISSR was used to confirm the genetic stability of this protocol. The mother tree and tissue culture-derived shoots evaluated exhibited no differences in the ISSR banding patterns. The micro-propagation method could be used to produce genetically stable date palm plants.
{"title":"The genetic stability of date palm shoots regenerated from leaves explant","authors":"Rasha N. Arafa, Sayed A.A. Elsayh, Marwa M. Abdalgaleel, Salwa El-Habashy, Emadeldin A.H. Ahmed, Eman H. Afifi, Alaa N. Draz, Rabab W. El Aramany, Abdallah Sharkh, Mohamed T. Abd El-Kader, Ahmed A.M. Baraka, Dosoky Hoda A.A.","doi":"10.22161/ijeab.85.15","DOIUrl":"https://doi.org/10.22161/ijeab.85.15","url":null,"abstract":"The purpose of this research was to develop a micro-propagation method for the date palm Zaghlol cv. using juvenile leaves. To produce the necessary results, different plant growth regulator combinations were used. The leaves were grown on MS medium supplemented with PVP to prevent the explants from browning. The results showed that adding PVP at a concentration of 1.0 g/l considerably reduced browning. On the induction medium, callus formation occurred during the fourth week of culture; however, callus formation (87.5%) was more prevalent on the ¾ MS medium containing with 10.0 mg/l NAA, 1.0 mg/l BA and 2.0 mg/l 2ip. The greatest development of embryogenic callus (94.50%) occurred on a ¾ MS medium supplemented with 5.0 mg/l NAA and 2.0 mg/l BA. The largest fresh callus weight (3.53 g) was produced by this treatment after four months in culture. On MS medium supplemented with 2.0 TDZ, 1.5 BA and 0.5 NAA, which was regarded as the optimum medium for increasing the number of embryos to 32.10 embryos/culture, the best results (65.67%) were obtained. Further investigation into the stimulation and development of somatic embryogenesis involved using MS basal medium supplemented with BA at 0.5 mg/l, kin at 0.1 mg/l and NAA at 0.05 mg/l; this treatment formed the most leaves (20.11 leaf/cluster). The cluster of shoots grown on MS basal medium supplemented with BA at 2.0 mg/l and NAA at 0.5 mg/l had the highest leaf number (34.25 leaf/cluster) and leaves length values after three sub-cultures (4.75 cm). The DNA-based fingerprinting technology ISSR was used to confirm the genetic stability of this protocol. The mother tree and tissue culture-derived shoots evaluated exhibited no differences in the ISSR banding patterns. The micro-propagation method could be used to produce genetically stable date palm plants.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307384","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}
Dolomite land occurs across five of the nine South Africa provinces and its vast occurrence and distribution makes it difficult to avoid when planning for building projects. Such terrains are generally associated with the formation of ground instability events (sinkholes & subsidences) causing widespread damage to infrastructure or loss of life. Under section 24 of the Constitution of South Africa, (Act 108 of 1996), safe environment and protection thereof has been elevated to a basic human right. In the context of safe land use planning and sustainable infrastructure development, more particularly post-1994, a series of statutes have been promulgated to provide a legislated framework for building practice in South Africa. The National Building Regulations and Building Standards (Act 103 of 1977) as amended, and the current National Building Regulations (NBR’s), have been promulgated to promote uniformity in the law relating to the erection of buildings in South Africa including prioritizing safe land for human settlement. A key principles is that if conditions of the land on which a building was or is being or is to be erected, shows signs of becoming dangerous to property and/ or life, such conditions must be investigated and secured. However, there seem to be challenges in the practical implementation. This paper therefore presents a review into the legislation pertinent to building practice to identify possible gaps, implementation challenges and damaging effects due to inappropriate development of dolomite land. The research further scrutinizes an influence or lack thereof, of the technical requirements aimed at ensuring sustainable development on geologically hazard prone terrains.
{"title":"South African legislation pertinent to building practice: A review in the context of inherent dolomite land hazard","authors":"S. Ngubelanga, J.L. Van Rooy","doi":"10.22161/ijeab.86.2","DOIUrl":"https://doi.org/10.22161/ijeab.86.2","url":null,"abstract":"Dolomite land occurs across five of the nine South Africa provinces and its vast occurrence and distribution makes it difficult to avoid when planning for building projects. Such terrains are generally associated with the formation of ground instability events (sinkholes & subsidences) causing widespread damage to infrastructure or loss of life. Under section 24 of the Constitution of South Africa, (Act 108 of 1996), safe environment and protection thereof has been elevated to a basic human right. In the context of safe land use planning and sustainable infrastructure development, more particularly post-1994, a series of statutes have been promulgated to provide a legislated framework for building practice in South Africa. The National Building Regulations and Building Standards (Act 103 of 1977) as amended, and the current National Building Regulations (NBR’s), have been promulgated to promote uniformity in the law relating to the erection of buildings in South Africa including prioritizing safe land for human settlement. A key principles is that if conditions of the land on which a building was or is being or is to be erected, shows signs of becoming dangerous to property and/ or life, such conditions must be investigated and secured. However, there seem to be challenges in the practical implementation. This paper therefore presents a review into the legislation pertinent to building practice to identify possible gaps, implementation challenges and damaging effects due to inappropriate development of dolomite land. The research further scrutinizes an influence or lack thereof, of the technical requirements aimed at ensuring sustainable development on geologically hazard prone terrains.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135564049","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}
Wondouet Hippolyte Kpan, Affi Jeanne Bongoua-Devisme, Konan-Kan Hippolyte Kouadio, Brahima Kone, Franck Michael Lemounou Bahan
The need to achieve self-sufficiency in rice led producers to overexploit soils and to use excessively chemical fertilizers, which deplete soils and make phosphorus unavailable to crops. As an alternative, eight phosphate amendements made from phosphate rocks from Morocco (MPR), Triple Superphosphate (TSP) and NPK (T0a (0%MPR + 0%TSP without NPK); T0 (0%MPR + 0%TSP+ NPK); T1 (100%MPR + 0%TSP+ NPK); T2 (90%MPR + 10%TSP+ NPK); T3 (80%MPR + 20%TSP+ NPK); T4 (40%MPR + 60%TSP+ NPK); T5 (20%MPR + 80% TSP + NPK); T6 (0%MPR + 100%TSP+ NPK) were applied to the field and their agronomic efficiencies were evaluated in Man (very acidic soil). Gagnoa (moderately acidic soil) and Bouaké (weakly acidic soil). After three cultivation cycles, results designate Man and Gagnoa as more productive zones with respectively 5.04 t ha-1 and 4.36 t ha-1 grain yield (GY), comparatively to Bouaké (3.74 t ha-1). Likewise, straw yields (SY) are 9.68 t ha-1 at Man and 6.06 t ha-1 at Gagnoa, comparatively to Bouaké (5.85 t ha-1). Treatments T3 and T4 were more productive in all zones with respectively GY of 7.50 t ha-1 and 6.50 t ha-1 in Man, 5.54 t ha-1 and 5.91 t ha- 1 in Gagnoa and 5.55 t ha-1 and 4.84 t ha-1 in Bouaké. This disparity is due to the chemical properties of the soils. In Man, Gagnoa and Bouaké, the combination 80% MPR + 20% TSP and 40% MPR + 60% TSP seem to improve better the yield of lowland rice.
实现稻米自给自足的需要导致生产者过度开发土壤和过度使用化肥，这耗尽了土壤，使作物无法获得磷。作为替代方案，由摩洛哥磷矿(MPR)、三重过磷酸钙(TSP)和NPK (T0a (0%MPR + 0%TSP，不含NPK)组成的8种磷酸盐改进剂;T0 (0%mpr + 0%tsp + npk);T1 (100%mpr + 0%tsp + npk);T2 (90%mpr + 10%tsp + npk);T3 (80%mpr + 20%tsp + npk);T4 (40%mpr + 60%tsp + npk);T5 (20%mpr + 80% TSP + npk);田间施用T6 (0%MPR + 100%TSP+ NPK)，在Man(极酸性土壤)上评价其农艺效率。Gagnoa(中酸性土壤)和bouak(弱酸性土壤)。经过3个栽培周期，结果表明Man和Gagnoa为高产区，产量分别为5.04 t ha-1和4.36 t ha-1，而bouak为3.74 t ha-1。同样，麦草产量(SY)在Man为9.68 t hm -1, Gagnoa为6.06 t hm -1，而bouak为5.85 t hm -1。T3和T4处理在所有区域均较高产，Man地区的GY分别为7.50 t ha-1和6.50 t ha-1, Gagnoa地区为5.54 t ha-1和5.91 t ha-1, bouak地区为5.55 t ha-1和4.84 t ha-1。这种差异是由土壤的化学性质造成的。在Man、Gagnoa和bouak， 80% MPR + 20% TSP和40% MPR + 60% TSP的组合似乎能更好地提高低地水稻的产量。
{"title":"Response of lowland rice to phosphate amendments in three acidics agroecological zones of Côte d'Ivoire: Man-Gagnoa-Bouaké","authors":"Wondouet Hippolyte Kpan, Affi Jeanne Bongoua-Devisme, Konan-Kan Hippolyte Kouadio, Brahima Kone, Franck Michael Lemounou Bahan","doi":"10.22161/ijeab.85.18","DOIUrl":"https://doi.org/10.22161/ijeab.85.18","url":null,"abstract":"The need to achieve self-sufficiency in rice led producers to overexploit soils and to use excessively chemical fertilizers, which deplete soils and make phosphorus unavailable to crops. As an alternative, eight phosphate amendements made from phosphate rocks from Morocco (MPR), Triple Superphosphate (TSP) and NPK (T0a (0%MPR + 0%TSP without NPK); T0 (0%MPR + 0%TSP+ NPK); T1 (100%MPR + 0%TSP+ NPK); T2 (90%MPR + 10%TSP+ NPK); T3 (80%MPR + 20%TSP+ NPK); T4 (40%MPR + 60%TSP+ NPK); T5 (20%MPR + 80% TSP + NPK); T6 (0%MPR + 100%TSP+ NPK) were applied to the field and their agronomic efficiencies were evaluated in Man (very acidic soil). Gagnoa (moderately acidic soil) and Bouaké (weakly acidic soil). After three cultivation cycles, results designate Man and Gagnoa as more productive zones with respectively 5.04 t ha-1 and 4.36 t ha-1 grain yield (GY), comparatively to Bouaké (3.74 t ha-1). Likewise, straw yields (SY) are 9.68 t ha-1 at Man and 6.06 t ha-1 at Gagnoa, comparatively to Bouaké (5.85 t ha-1). Treatments T3 and T4 were more productive in all zones with respectively GY of 7.50 t ha-1 and 6.50 t ha-1 in Man, 5.54 t ha-1 and 5.91 t ha- 1 in Gagnoa and 5.55 t ha-1 and 4.84 t ha-1 in Bouaké. This disparity is due to the chemical properties of the soils. In Man, Gagnoa and Bouaké, the combination 80% MPR + 20% TSP and 40% MPR + 60% TSP seem to improve better the yield of lowland rice.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135051496","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}
Amadou Aboubacar, Issoufou Baggnian aggnian, I. D. Guimbo, Zounon Christian Serge Félix
The aim of this study was to characterise the diversity and structural parameters of the woody stand in the contracted vegetation of western Niger at three sites located along a rainfall and human settlement gradient. An inventory of the woody flora and a measurement of the dendrometric characteristics of the trees were carried out on 120 plots of 2500 m2 subdivided into plots 12.5 m apart. The species richness was 17 species in 9 genera and 12 families on all the sites investigated, with 11 species on the Kouré plateau, 13 on the Guittodo plateau and 17 in the Gorou Bassounga classified forest. Density was 234.79, 555.09 and 683.79 ind/ha, basal area 4.21, 7.2 and 8.62m2/ha and tree cover 19.8, 45.34 and 60.75¨%, respectively on these three sites. In terms of structure, the stand has a high proportion of relatively young individuals. Shannon's diversity (2.37 to 2.81 bits) indicates that the environments are of low diversity and Pilou's equitability (0.56 to 0.63) highlights a phenomenon of dominance in the three stands. The lowest similarity index (0.44) is obtained between the Kouré plateau and the Gorou Bassounga classified forest, and the highest (0.46) between the Kouré plateau and the Guittodo plateau. These results testify to the low diversity and young structure of this dying vegetation.
{"title":"Diversity and structure of woody stands in the contracted vegetation of western Niger following a rainfall and anthropisation gradient","authors":"Amadou Aboubacar, Issoufou Baggnian aggnian, I. D. Guimbo, Zounon Christian Serge Félix","doi":"10.22161/ijeab.84.2","DOIUrl":"https://doi.org/10.22161/ijeab.84.2","url":null,"abstract":"The aim of this study was to characterise the diversity and structural parameters of the woody stand in the contracted vegetation of western Niger at three sites located along a rainfall and human settlement gradient. An inventory of the woody flora and a measurement of the dendrometric characteristics of the trees were carried out on 120 plots of 2500 m2 subdivided into plots 12.5 m apart. The species richness was 17 species in 9 genera and 12 families on all the sites investigated, with 11 species on the Kouré plateau, 13 on the Guittodo plateau and 17 in the Gorou Bassounga classified forest. Density was 234.79, 555.09 and 683.79 ind/ha, basal area 4.21, 7.2 and 8.62m2/ha and tree cover 19.8, 45.34 and 60.75¨%, respectively on these three sites. In terms of structure, the stand has a high proportion of relatively young individuals. Shannon's diversity (2.37 to 2.81 bits) indicates that the environments are of low diversity and Pilou's equitability (0.56 to 0.63) highlights a phenomenon of dominance in the three stands. The lowest similarity index (0.44) is obtained between the Kouré plateau and the Gorou Bassounga classified forest, and the highest (0.46) between the Kouré plateau and the Guittodo plateau. These results testify to the low diversity and young structure of this dying vegetation.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87547661","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}
The purpose of this study is to analyze the land use evolution and characteristics of Suzhou wetlands. Located in the Taihu Lake basin, Suzhou has abundant wetland resources, covering 339,500 hectares and accounting for 40% of the land area. The huge wetlands have high environmental and ecological indicators. With the support of RS and GIS technology, Landsat OLI 30 m remote sensing images, vector data, 30 m DEM, and other data are used. Through analysis and processing, land use type maps, wetland distribution maps, and research area overview maps are generated, and their land use area, dynamic degree, and transfer matrix are calculated. The results show that from 2013 to 2020, the total area of Suzhou wetlands showed a decreasing trend, with a total change of -8.77%. In the past seven years, Suzhou's urban construction rate has been relatively fast, and the main supply sources of construction land were lakes, mudflats, wetlands, and woodlands. Based on this, the impact of economic development and construction on the protection of environmental ecology should be emphasized and implemented in wetland management and protection strategies in order to promote sustainable environmental development.
本研究的目的是分析苏州湿地的土地利用演变及其特征。苏州地处太湖流域，湿地资源丰富，占地33.95万公顷，占国土面积的40%。巨大的湿地具有较高的环境生态指标。在RS和GIS技术的支持下，使用了Landsat OLI 30m遥感影像、矢量数据、30m DEM等数据。通过分析处理，生成土地利用类型图、湿地分布图和研究区概览图，并计算其土地利用面积、动态性和转移矩阵。结果表明:2013 - 2020年，苏州湿地总面积呈减少趋势，总变化幅度为-8.77%;近7年来，苏州城市建设速度较快，建设用地供应来源主要为湖泊、泥滩、湿地和林地。在此基础上，在湿地管理与保护战略中应重视和落实经济发展建设对环境生态保护的影响，以促进环境的可持续发展。
{"title":"Analysis of Land Use Evolution of Suzhou Wetlands Based on RS and GIS","authors":"Lirong Xu, Ruei-Yuan Wang, Zhe Zhu","doi":"10.22161/ijeab.84.13","DOIUrl":"https://doi.org/10.22161/ijeab.84.13","url":null,"abstract":"The purpose of this study is to analyze the land use evolution and characteristics of Suzhou wetlands. Located in the Taihu Lake basin, Suzhou has abundant wetland resources, covering 339,500 hectares and accounting for 40% of the land area. The huge wetlands have high environmental and ecological indicators. With the support of RS and GIS technology, Landsat OLI 30 m remote sensing images, vector data, 30 m DEM, and other data are used. Through analysis and processing, land use type maps, wetland distribution maps, and research area overview maps are generated, and their land use area, dynamic degree, and transfer matrix are calculated. The results show that from 2013 to 2020, the total area of Suzhou wetlands showed a decreasing trend, with a total change of -8.77%. In the past seven years, Suzhou's urban construction rate has been relatively fast, and the main supply sources of construction land were lakes, mudflats, wetlands, and woodlands. Based on this, the impact of economic development and construction on the protection of environmental ecology should be emphasized and implemented in wetland management and protection strategies in order to promote sustainable environmental development.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89037910","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}
Biosurfactants are a group of heterogenous metabolites synthesized by a variety of microorganisms. They exhibit the properties of the surface tension reduction, emulsion stabilization, promote foaming, and specific activity at extreme temperatures, pH, and salinity. A bacterial strain was screened for its biosurfactant production in 250 ml MSM broth with crude oil as an inducer for 5 days. The screening activity performed by (i) drop collapse test, (ii) oil displacement test, (iii) emulsification index proved the presence of biosurfactant. TLC and FTIR analysis confirmed that the biosurfactant produced by the selected bacterial isolate is a rhamnolipid. The potential isolate was identified by 16S rRNA gene sequencing analysis and it was identified as Pseudomonas aeruginosa.
生物表面活性剂是一组由多种微生物合成的异质代谢物。它们具有降低表面张力、稳定乳液、促进起泡和在极端温度、pH值和盐度下的比活性等特性。筛选了一株菌株，以原油为诱导剂，在250 ml MSM肉汤中培养5天。通过(i)滴落试验、(ii)驱油试验、(iii)乳化指数进行筛选，证明了生物表面活性剂的存在。TLC和FTIR分析证实所选细菌分离得到的生物表面活性剂为鼠李糖脂。经16S rRNA基因测序分析鉴定为铜绿假单胞菌(Pseudomonas aeruginosa)。
{"title":"Screening, characterization and molecular insights of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa BS1","authors":"Nisha S. Nayak, Dhruvi S. Joshi, Yesha S. Rathi","doi":"10.22161/ijeab.82.13","DOIUrl":"https://doi.org/10.22161/ijeab.82.13","url":null,"abstract":"Biosurfactants are a group of heterogenous metabolites synthesized by a variety of microorganisms. They exhibit the properties of the surface tension reduction, emulsion stabilization, promote foaming, and specific activity at extreme temperatures, pH, and salinity. A bacterial strain was screened for its biosurfactant production in 250 ml MSM broth with crude oil as an inducer for 5 days. The screening activity performed by (i) drop collapse test, (ii) oil displacement test, (iii) emulsification index proved the presence of biosurfactant. TLC and FTIR analysis confirmed that the biosurfactant produced by the selected bacterial isolate is a rhamnolipid. The potential isolate was identified by 16S rRNA gene sequencing analysis and it was identified as Pseudomonas aeruginosa.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87605364","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}
This study aims to determine the carrying capacity and profitability of developing beef cattle farming in the coconut land hold by coconut plantation companies. The research was conducted using a survey method on tenant farmers of coconut land that are managed by plantation companies, both state company and private companies holding land use rights (HGU) for coconut plantations. Data that are observed and measured in the field based on the results of interviews with respondents, as well as secondary data from related agencies. The analytical methods used are carrying capacity and profit predicted analysis. The results of the study were concluded as follows: (1) Potential carrying capacity of forage for cattle in coconut plantation company land has an average of 5.28 AU (Animal Unit) of cattles, while on average ownership of cattle only 2.06 AU of cattles each tenant farmer in coconut land that are managed by plantation companies, so that the number of cattle ownerships can still be increased by about 3.22 AU. Tenant farmers of coconut plantation companies land have the potential for the availability of forage on cultivated coconut land owned by coconut plantation companies, so that they can still increase the number of cattle kept.
{"title":"Beef cattle farming potential in the coconut plantation companies lands in South Minahasa Regency, Indonesia","authors":"T. F. Lumy, R. Osak, S. P. Pangemanan","doi":"10.22161/ijeab.82.4","DOIUrl":"https://doi.org/10.22161/ijeab.82.4","url":null,"abstract":"This study aims to determine the carrying capacity and profitability of developing beef cattle farming in the coconut land hold by coconut plantation companies. The research was conducted using a survey method on tenant farmers of coconut land that are managed by plantation companies, both state company and private companies holding land use rights (HGU) for coconut plantations. Data that are observed and measured in the field based on the results of interviews with respondents, as well as secondary data from related agencies. The analytical methods used are carrying capacity and profit predicted analysis. The results of the study were concluded as follows: (1) Potential carrying capacity of forage for cattle in coconut plantation company land has an average of 5.28 AU (Animal Unit) of cattles, while on average ownership of cattle only 2.06 AU of cattles each tenant farmer in coconut land that are managed by plantation companies, so that the number of cattle ownerships can still be increased by about 3.22 AU. Tenant farmers of coconut plantation companies land have the potential for the availability of forage on cultivated coconut land owned by coconut plantation companies, so that they can still increase the number of cattle kept.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82596159","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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