运用SWAT (Soil and Water Assessment Tool)模型模拟国际界河鸭绿江流域(中国侧) 1988—2017年的蓝、绿水资源量,明确其时空变化特征,并设置多种气候变化与土地利用变化情景对流域蓝、绿水资源时空变化进行归因分析。研究结果表明:(1)...运用SWAT (Soil and Water Assessment Tool)模型模拟国际界河鸭绿江流域(中国侧) 1988—2017年的蓝、绿水资源量,明确其时空变化特征,并设置多种气候变化与土地利用变化情景对流域蓝、绿水资源时空变化进行归因分析。研究结果表明:(1)鸭绿江流域(中国侧)蓝、绿水资源丰富,年均蓝水资源量是绿水的1.45倍,蓝、绿水资源均有增长趋势但并不显著,季节蓝、绿水资源量均为夏季>秋季>春季>冬季;(2)鸭绿江流域(中国侧)年均蓝水资源在基准期和变化期均从上游至下游逐渐增加,而年均绿水资源则呈现从上游至下游先增后减的空间分布特征;(3)气候变化是鸭绿江流域(中国侧)蓝、绿水资源时空变化的主导因素,其对蓝、绿水资源变化量的贡献率分别为83.57%和195.51%。研究结果可为鸭绿江流域跨境水资源合理分配、国际合作提供依据。展开更多
This paper shares experiences of the southern and eastern Africa rainwater network on rainwater harvesting.It also shares the lessons drawn from policy research awareness creation and networking building of national n...This paper shares experiences of the southern and eastern Africa rainwater network on rainwater harvesting.It also shares the lessons drawn from policy research awareness creation and networking building of national networks and assessment of promising water harvesting techniques in the Sub-Saharan Africa.The concerted promotional effort of the southern and eastern Africa rainwater network has resulted in the general acceptance of rainwater harvesting as a viable option for boosting domestic water supply agricultural production and environmental sustainability.To date twelve nationally registered rainwater harvesting associations have been established which are providing leadership and capacity building in rainwater harvesting.Governments and donors are also aligning their policies towards providing increased financial institutional and technical support for upscaling rainwater-harvesting techniques. This paper concludes that diligent land and water management is necessary for yielding the highest benefits from rainwater.In addition to enabling policies and institutions there must be ample budgetary support to increase adoption of the technology.展开更多
文摘运用SWAT (Soil and Water Assessment Tool)模型模拟国际界河鸭绿江流域(中国侧) 1988—2017年的蓝、绿水资源量,明确其时空变化特征,并设置多种气候变化与土地利用变化情景对流域蓝、绿水资源时空变化进行归因分析。研究结果表明:(1)鸭绿江流域(中国侧)蓝、绿水资源丰富,年均蓝水资源量是绿水的1.45倍,蓝、绿水资源均有增长趋势但并不显著,季节蓝、绿水资源量均为夏季>秋季>春季>冬季;(2)鸭绿江流域(中国侧)年均蓝水资源在基准期和变化期均从上游至下游逐渐增加,而年均绿水资源则呈现从上游至下游先增后减的空间分布特征;(3)气候变化是鸭绿江流域(中国侧)蓝、绿水资源时空变化的主导因素,其对蓝、绿水资源变化量的贡献率分别为83.57%和195.51%。研究结果可为鸭绿江流域跨境水资源合理分配、国际合作提供依据。
文摘This paper shares experiences of the southern and eastern Africa rainwater network on rainwater harvesting.It also shares the lessons drawn from policy research awareness creation and networking building of national networks and assessment of promising water harvesting techniques in the Sub-Saharan Africa.The concerted promotional effort of the southern and eastern Africa rainwater network has resulted in the general acceptance of rainwater harvesting as a viable option for boosting domestic water supply agricultural production and environmental sustainability.To date twelve nationally registered rainwater harvesting associations have been established which are providing leadership and capacity building in rainwater harvesting.Governments and donors are also aligning their policies towards providing increased financial institutional and technical support for upscaling rainwater-harvesting techniques. This paper concludes that diligent land and water management is necessary for yielding the highest benefits from rainwater.In addition to enabling policies and institutions there must be ample budgetary support to increase adoption of the technology.