Biodiversity is a critical component for sustainable human development.The recently concluded Sixteenth Conference of Parties to the Convention on Biological Diversity 2024 highlighted the need for whole of society mo...Biodiversity is a critical component for sustainable human development.The recently concluded Sixteenth Conference of Parties to the Convention on Biological Diversity 2024 highlighted the need for whole of society mobilization to address the global biodiversity crisis by translating international conservation commitments into effective local actions.A study to understand the linkages between ecological conservation measures in Aba Tibetan and Qiang Autonomous Prefecture and the United Nations Sustainable Development Goal(SDG)15 target 15.5,was undertaken,using the content analysis method that reviewed international conventions,national policies,and local government measures and practices.The study revealed that there was a strong link with between Aba’s conservation strategies and SDG 15 particularly target 15.5 in reducing natural habitat degradation,curbing biodiversity loss,and protecting endangered species.The Aba Prefecture has established 25 nature reserves,that are regulated by stringent wetland protection measures,and comprehensive legal frameworks for biodiversity conservation which is in line with SDG 15.The findings further show that that the Aba Prefecture’s efforts in ecosystem conservation,species protection,and sustainable resource utilization can be used to help meet SDG 15 target 15.5.The study also identified steps to help localize SDG aspirations and goals,by strengthening long-term data monitoring and local herder participation.These insights can be used to support other initiatives and measures in other similar biodiversity-rich regions seeking to implement global conservation goals at the local level,particularly in ecologically sensitive mountainous areas.展开更多
Exacerbated by climate change,Europe has experienced series of hot and dry summer since the beginning of the 21st century.The importance of land conditions became an international concern with a dedicated sustainable ...Exacerbated by climate change,Europe has experienced series of hot and dry summer since the beginning of the 21st century.The importance of land conditions became an international concern with a dedicated sustainable development goal(SDG),the SDG 15.It calls for developing and finding innovative solu-tions to follow and evaluate impacts of changing land condi-tions induced by various driving forces.In Switzerland,drought risk will significantly increase in the coming decades with severe consequences on agriculture,energy production and vegeta-tion.In this paper,we used a 35-year satellite-derived annual and seasonal times-series of normalized difference water index(NDWI)to follow vegetation water content evolution at different spatial and temporal scales across Switzerland and related them to temperature and precipitation to investigate possible responses of changing climatic conditions.Results indicate that there is a small and slow drying tendency at the country scale with a NDWI mean decreasing slope of−0.22%/year for the 23%significant pixels across Switzerland.This tendency is mostly visible below 2000 m above sea level(m.a.s.l.)and in all biogeographical regions.The Southern Alps regions appear to be more responsive to changing drying conditions with a significant and slight negative NDWI trend(−0.39%/year)over the last 35 years.Moreover,NDWI values are mostly a func-tion of temperature at elevations below the tree line rather than precipitation.Findings suggest that multi-annual and seasonal NDWI can be a valuable indicator to monitor vegetation water content at different scales,but other components such as land cover type and evapotranspiration should be considered to better characterize NDWI variability.Satellite Earth Observations data can provide valuable complementary obser-vations for national statistics on the ecological state of vegeta-tion to support SDG 15 to monitor land affected by drying conditions.展开更多
Accurate high-resolution maps of oil palm plantations underpin effective management of environmental and socio-economic impacts at global,regional,and national levels.However,young industrial and highly irregular smal...Accurate high-resolution maps of oil palm plantations underpin effective management of environmental and socio-economic impacts at global,regional,and national levels.However,young industrial and highly irregular small-holder plantations are mostly unmapped and not included in official FAO statistics.This issue is addressed here by discriminating global oil palm plantation in 2020 into four subclasses:Industrial Mature Oil Palm(IMOP);Industrial Young Oil Palm(IYOP);Smallholder Mature Oil Palm(SMOP);and Smallholder Young Oil Palm(SYOP).Data,resolved to 4.77 m,from Planet&NICFI,Sentinel-1/2,were combined with other layers using the image-oriented classification and regression tree(CART)algorithm which performed best in classification tests.Results show that SMOP dominates distributional extent,but it was also the most accurately mapped subclass typically found at 500–1000 m altitude.IMOP had the most extensive altitude range of 500–1300 m,while IYOP and SYOP were found at similar altitudes of 500–800 m and 500–900 m respectively.Recent developments in South East Asia show oil palm plantations expanding into new areas with a slope of 24 degrees.Results provide data to support Sustainable Development Goal by assisting future oil palm-related development planning and monitoring in the world’s major oil palm-growing countries.展开更多
文摘Biodiversity is a critical component for sustainable human development.The recently concluded Sixteenth Conference of Parties to the Convention on Biological Diversity 2024 highlighted the need for whole of society mobilization to address the global biodiversity crisis by translating international conservation commitments into effective local actions.A study to understand the linkages between ecological conservation measures in Aba Tibetan and Qiang Autonomous Prefecture and the United Nations Sustainable Development Goal(SDG)15 target 15.5,was undertaken,using the content analysis method that reviewed international conventions,national policies,and local government measures and practices.The study revealed that there was a strong link with between Aba’s conservation strategies and SDG 15 particularly target 15.5 in reducing natural habitat degradation,curbing biodiversity loss,and protecting endangered species.The Aba Prefecture has established 25 nature reserves,that are regulated by stringent wetland protection measures,and comprehensive legal frameworks for biodiversity conservation which is in line with SDG 15.The findings further show that that the Aba Prefecture’s efforts in ecosystem conservation,species protection,and sustainable resource utilization can be used to help meet SDG 15 target 15.5.The study also identified steps to help localize SDG aspirations and goals,by strengthening long-term data monitoring and local herder participation.These insights can be used to support other initiatives and measures in other similar biodiversity-rich regions seeking to implement global conservation goals at the local level,particularly in ecologically sensitive mountainous areas.
文摘Exacerbated by climate change,Europe has experienced series of hot and dry summer since the beginning of the 21st century.The importance of land conditions became an international concern with a dedicated sustainable development goal(SDG),the SDG 15.It calls for developing and finding innovative solu-tions to follow and evaluate impacts of changing land condi-tions induced by various driving forces.In Switzerland,drought risk will significantly increase in the coming decades with severe consequences on agriculture,energy production and vegeta-tion.In this paper,we used a 35-year satellite-derived annual and seasonal times-series of normalized difference water index(NDWI)to follow vegetation water content evolution at different spatial and temporal scales across Switzerland and related them to temperature and precipitation to investigate possible responses of changing climatic conditions.Results indicate that there is a small and slow drying tendency at the country scale with a NDWI mean decreasing slope of−0.22%/year for the 23%significant pixels across Switzerland.This tendency is mostly visible below 2000 m above sea level(m.a.s.l.)and in all biogeographical regions.The Southern Alps regions appear to be more responsive to changing drying conditions with a significant and slight negative NDWI trend(−0.39%/year)over the last 35 years.Moreover,NDWI values are mostly a func-tion of temperature at elevations below the tree line rather than precipitation.Findings suggest that multi-annual and seasonal NDWI can be a valuable indicator to monitor vegetation water content at different scales,but other components such as land cover type and evapotranspiration should be considered to better characterize NDWI variability.Satellite Earth Observations data can provide valuable complementary obser-vations for national statistics on the ecological state of vegeta-tion to support SDG 15 to monitor land affected by drying conditions.
基金supported by the National Key Research and Development Program of China(No.2022YFC3103103)the Strategic Priority Research Program of Chinese Academy of Sciences(grant number XDA19060304).
文摘Accurate high-resolution maps of oil palm plantations underpin effective management of environmental and socio-economic impacts at global,regional,and national levels.However,young industrial and highly irregular small-holder plantations are mostly unmapped and not included in official FAO statistics.This issue is addressed here by discriminating global oil palm plantation in 2020 into four subclasses:Industrial Mature Oil Palm(IMOP);Industrial Young Oil Palm(IYOP);Smallholder Mature Oil Palm(SMOP);and Smallholder Young Oil Palm(SYOP).Data,resolved to 4.77 m,from Planet&NICFI,Sentinel-1/2,were combined with other layers using the image-oriented classification and regression tree(CART)algorithm which performed best in classification tests.Results show that SMOP dominates distributional extent,but it was also the most accurately mapped subclass typically found at 500–1000 m altitude.IMOP had the most extensive altitude range of 500–1300 m,while IYOP and SYOP were found at similar altitudes of 500–800 m and 500–900 m respectively.Recent developments in South East Asia show oil palm plantations expanding into new areas with a slope of 24 degrees.Results provide data to support Sustainable Development Goal by assisting future oil palm-related development planning and monitoring in the world’s major oil palm-growing countries.
