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【摘 要】
：
The ecological water demand (EWD) is the least water amount required to maintain the structure and the function of the special eco-system and the temporal scale
【机 构】
：
Northeast Inst. of Geography and Agricultural Ecology,China Inst. of Water Resource and Hydropower,X
【出 处】
：
地理学报
【发表日期】
：
2004年期
【基金项目】
：
Key Resource and Environment Projects of CAS;
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