关键词: 水文情势; 生态流量; 生态适宜性; 模拟分析; 湘河水利枢纽; 黑颈鹤夜宿地; 西藏;

Abstract: Based on the investigation of the characteristic of roosting site of black-necked crane and the simulation of the hydrological situation, a series of habitat characteristic indicators, such as water level, width of river bars were used to study the impact of hydrological situation change caused by the construction of Xianghe water conservancy project on the roosting site of black-necked crane.The results showed that the ecological suitability of the ideal roosting site of black-necked crane in the Xianghe estuary won't be changed significantly and had little impact on roosting site of black-necked cranes, when the ecological flow was discharged in accordance with the near-natural flow.If the ecological flow decreased continuously, the ideal habitat of roosting site might be reduced significantly.At the end, suggestion of ensuring enough ecological flow in dry season was put forward.

Key words: hydrology situation; ecological flow; ecological suitability; simulation analysis; Xianghe water conservancy project; roosting site of the black necked-crane; Tibet Autonomous Region;