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Now already built under the Mekong river branch of reservoir are 11,
目前下湄公河支流已建的水库有11个
It's make a deep influence in hydrological.
对水文情势产生相当的影响
First ,it reduce average annual runoff,
首先减少年平均径流
second,it increase in average minimum flow.
其次增加年平均最小流量
At last,it increase minimum discharge at different times.
最后增加不同时期内的最小流量
If we make the had built project and the recent first develop project add up.
如果将已建工程和近期优先发展的工程加起来
The total capacity will take up 40 percent of the Mekong river to the total runoff.
其总库容将占4%的湄公河总径流量
If this project has built,26 percent of runoff will get adjust,
这些工程建成后,26%的径流将得到调节
At that time,It can make the whole basin influence in hydrological.
那时对水文情势将产生全流域范围的影响
Beacause of building dam,the flow.silt.nutrition and living and so on of the river which changes will affect the process of natural ecological and waterways.
由于建坝,河道中水流、泥沙、营养和生物等所发生的变化将影响河道中的生态和自然过程
Also it will make influence in ecological resources environment of the basin.
同时也将流域的生态资源环境产生影响.