Agriculture is harming its own future through soil degradation and pollution of the water that it generates. The different chemical analyses carried out on surface waters and the land surveys carried out in the Nakanb...Agriculture is harming its own future through soil degradation and pollution of the water that it generates. The different chemical analyses carried out on surface waters and the land surveys carried out in the Nakanbé basin have shown that agricultural practices contribute to water pollution. The monitoring of nitrate, orthophosphate and BOD5 levels in the dams of Goinré, Ziga and Bagré during the period from August to December revealed that agricultural practices lead to variation in these parameters. The average values for nitrates are 0.833 mg/L in the Goinré fresh waterbody, 1.372 mg/L in the Ziga reservoir, and 1.267 mg/L in the Bagré fresh waterbody. As for ortho phosphate, mean values are 0.357 mg/L in the Goinré reservoir, 0.157 mg/L in the Ziga reservoir and 0.123 mg/L in the Bagré reservoir. These average values are higher than the norms established by Nisbet and Vernaux (1970) for eutrophication. Nitrates and orthophosphate are the elements that contribute to the eutrophication of water surfaces in the Nakanbé basin, although this eutrophication is of low intensity. Of all pesticides encountered in our study sites, 45% are registered by the Sahelian Pesticides Committee (CSP): 35% are non-accredited and 20% are unknown in the global list authorized by the CSP in 2010.展开更多
Amphibia ns play a key role in structuring biological assemblages of agricultural landscapes,but they are threatened by global agricultural intensification.Landscape structure is an important variable in flue ncing bi...Amphibia ns play a key role in structuring biological assemblages of agricultural landscapes,but they are threatened by global agricultural intensification.Landscape structure is an important variable in flue ncing biodiversity in agricultural la ndscapes.However,in the Yangtze River Delta,where a"farmland-orchard-fishpond"agricultural pattern is common,the effects of landscape construction on anuran populations are unclear.In this study,we examined the effects of agricultural landscape parameters on the abundance and body condition of the rice frog(Fejervarya multistriata),which is a dominant anuran species in farmland in China.Employing a visual encounter method,we surveyed rice frog abundance for 3years across 20 agricultural landscapes.We also calculated the body condition index(BCD of 188 male frog individuals from these agricultural landscapes.Landscape variables,comprising landscape compositional heterogeneity(using the Shannon diversity in dex of all land cover types except buildings and roads),Ian dscape con figurational heterogeneity(using landscape edge density),breeding habitat diversity(using the number of 5 waterbody types available as breeding habitats),and areas of forest were also measured for each 1-km radius landscape.We found that the amount of forest in each agricultural Iandscape had a sign讦icant positive relationship with rice frog abundance,and breeding habitat diversity was positively related to the BCI of male rice frogs.However,body condition was negatively impacted by landscape configurational heterogeneity.Our results suggested the importance of nonagricultural habitats in agricultural landscapes,such as waterbodies and forest,to benefit rice frog population persistenee.展开更多
Inland waterbody biology is a disciplinary branch of ecology, dealing with the living phenomena of an inland waterbody ecosystem and their interaction with the environment. As freshwater resources constitute a critica...Inland waterbody biology is a disciplinary branch of ecology, dealing with the living phenomena of an inland waterbody ecosystem and their interaction with the environment. As freshwater resources constitute a critical precondition for human survival, the international community invariably places its research focus on the protection of the water environment. Both the theory and the practice of China’s freshwater biological research have reached the advanced level in the world today in terms of the exploitation of inland waterbody biomass production. In the protection of water quality, however, our work apparently lags behind the worldwide level. In line with the current situation in our country, we must respond rapidly by shifting our research priority to the protection of the water environment. Our strategy for the disciplinary development is to protect water quality, giving proper consideration to freshwater fisheries, moderate exploitation and the sustainable utilization of our inland waterbody展开更多
The relationship between land use and water quality status is complex and likely to be site-specific,and more work is needed for it to be clearly quantified.Theref National Cheng Kung University,No 1 University Road,T...The relationship between land use and water quality status is complex and likely to be site-specific,and more work is needed for it to be clearly quantified.Theref National Cheng Kung University,No 1 University Road,Tainan 701ore,the main objective of this paper was thus to identify and investigate status of waterbodies(lakes and rivers)by using appropriate predictive index assessment tool coupled with the offered Adaptive Co-Management(ACM)methodology towards sustainability of water quality and ecology in Indonesia.We then present a comprehensive assessment as baseline information to describe the existing condition of waterbody status in study area.The results indicated that the basic requirements of predictive index assessment tool,expressed as indicator:criteria and attributes,are use-specific or targeted to the protection of the watershed and waterbodies uses among a number of land use policies.In some situations,even stricter requirements and policies are necessary to achieve sustainability of water quality and ecology in Indonesia.展开更多
基于WebGIS平台的管理信息系统(Management Information System,简称MIS))是城市水体修复技术集成的重要工具,该系统包括数据管理平台、决策支持平台、公众交流平台和集成化管理平台。通过对城市水体修复技术集成的管理信息系统的结构...基于WebGIS平台的管理信息系统(Management Information System,简称MIS))是城市水体修复技术集成的重要工具,该系统包括数据管理平台、决策支持平台、公众交流平台和集成化管理平台。通过对城市水体修复技术集成的管理信息系统的结构和功能设计,以及系统架构设计,建立了城市水体修复技术集成管理信息系统(ComprehensiveIntegrated Method(CIM)for Urban Water Restoration(UWR)Management Information System(MIS),简称UWR-CIM-MIS.)。UWR-CIM-MIS集成了基础数据库、模型方法库以及专家库,可以为政府决策者提供充分的决策参考,适于推广到城市或区域水体修复的规划与管理之中。展开更多
文摘Agriculture is harming its own future through soil degradation and pollution of the water that it generates. The different chemical analyses carried out on surface waters and the land surveys carried out in the Nakanbé basin have shown that agricultural practices contribute to water pollution. The monitoring of nitrate, orthophosphate and BOD5 levels in the dams of Goinré, Ziga and Bagré during the period from August to December revealed that agricultural practices lead to variation in these parameters. The average values for nitrates are 0.833 mg/L in the Goinré fresh waterbody, 1.372 mg/L in the Ziga reservoir, and 1.267 mg/L in the Bagré fresh waterbody. As for ortho phosphate, mean values are 0.357 mg/L in the Goinré reservoir, 0.157 mg/L in the Ziga reservoir and 0.123 mg/L in the Bagré reservoir. These average values are higher than the norms established by Nisbet and Vernaux (1970) for eutrophication. Nitrates and orthophosphate are the elements that contribute to the eutrophication of water surfaces in the Nakanbé basin, although this eutrophication is of low intensity. Of all pesticides encountered in our study sites, 45% are registered by the Sahelian Pesticides Committee (CSP): 35% are non-accredited and 20% are unknown in the global list authorized by the CSP in 2010.
基金This work was supported financially by the Natural Science Foundation of China(No.31901099,31800350)Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration(No.SHUES2019B03)+2 种基金Science and Technology Commission of Shanghai Municipality(No.18DZ1205000)Institute of Eco-Chongming(No.ECNU-IEC-201902)Shanghai Landscaping and City Appearance Administrative Bureau(No.F131508).
文摘Amphibia ns play a key role in structuring biological assemblages of agricultural landscapes,but they are threatened by global agricultural intensification.Landscape structure is an important variable in flue ncing biodiversity in agricultural la ndscapes.However,in the Yangtze River Delta,where a"farmland-orchard-fishpond"agricultural pattern is common,the effects of landscape construction on anuran populations are unclear.In this study,we examined the effects of agricultural landscape parameters on the abundance and body condition of the rice frog(Fejervarya multistriata),which is a dominant anuran species in farmland in China.Employing a visual encounter method,we surveyed rice frog abundance for 3years across 20 agricultural landscapes.We also calculated the body condition index(BCD of 188 male frog individuals from these agricultural landscapes.Landscape variables,comprising landscape compositional heterogeneity(using the Shannon diversity in dex of all land cover types except buildings and roads),Ian dscape con figurational heterogeneity(using landscape edge density),breeding habitat diversity(using the number of 5 waterbody types available as breeding habitats),and areas of forest were also measured for each 1-km radius landscape.We found that the amount of forest in each agricultural Iandscape had a sign讦icant positive relationship with rice frog abundance,and breeding habitat diversity was positively related to the BCI of male rice frogs.However,body condition was negatively impacted by landscape configurational heterogeneity.Our results suggested the importance of nonagricultural habitats in agricultural landscapes,such as waterbodies and forest,to benefit rice frog population persistenee.
文摘Inland waterbody biology is a disciplinary branch of ecology, dealing with the living phenomena of an inland waterbody ecosystem and their interaction with the environment. As freshwater resources constitute a critical precondition for human survival, the international community invariably places its research focus on the protection of the water environment. Both the theory and the practice of China’s freshwater biological research have reached the advanced level in the world today in terms of the exploitation of inland waterbody biomass production. In the protection of water quality, however, our work apparently lags behind the worldwide level. In line with the current situation in our country, we must respond rapidly by shifting our research priority to the protection of the water environment. Our strategy for the disciplinary development is to protect water quality, giving proper consideration to freshwater fisheries, moderate exploitation and the sustainable utilization of our inland waterbody
基金The authors gratefully acknowledge the support for this research provided in part by Maranatha Christian University,Indonesia under grant number 595/BSDM/UKM/IX/2009,in part by Ministry of Science and Technology,Taiwan,under grant number NSC 102-2221-E-006-246-MY3 and by the Headquarters of University Advancement at the National Cheng Kung University,which is sponsored by the Ministry of Education,Taiwan.
文摘The relationship between land use and water quality status is complex and likely to be site-specific,and more work is needed for it to be clearly quantified.Theref National Cheng Kung University,No 1 University Road,Tainan 701ore,the main objective of this paper was thus to identify and investigate status of waterbodies(lakes and rivers)by using appropriate predictive index assessment tool coupled with the offered Adaptive Co-Management(ACM)methodology towards sustainability of water quality and ecology in Indonesia.We then present a comprehensive assessment as baseline information to describe the existing condition of waterbody status in study area.The results indicated that the basic requirements of predictive index assessment tool,expressed as indicator:criteria and attributes,are use-specific or targeted to the protection of the watershed and waterbodies uses among a number of land use policies.In some situations,even stricter requirements and policies are necessary to achieve sustainability of water quality and ecology in Indonesia.
文摘基于WebGIS平台的管理信息系统(Management Information System,简称MIS))是城市水体修复技术集成的重要工具,该系统包括数据管理平台、决策支持平台、公众交流平台和集成化管理平台。通过对城市水体修复技术集成的管理信息系统的结构和功能设计,以及系统架构设计,建立了城市水体修复技术集成管理信息系统(ComprehensiveIntegrated Method(CIM)for Urban Water Restoration(UWR)Management Information System(MIS),简称UWR-CIM-MIS.)。UWR-CIM-MIS集成了基础数据库、模型方法库以及专家库,可以为政府决策者提供充分的决策参考,适于推广到城市或区域水体修复的规划与管理之中。
