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Primary research on the eco-recovery and sustainable development tactics of the lakes of the North District in China

LIU Jing-ling 1,2 ,YANG Zhi-feng 1,SHENG Lian-xi 2 (1.The Environmental Science Institute,Beijing Normal University, Beijing 100875,China; 2.School of Urban and Environmental Science,Northeast Normal University,Changchun 130024,China)  
The North China which is one of the most serious district in water crisis in China was selected asresearch objection.In this paper the history and exsiting state of the lakes bio-diversity in the district were in-depth analysis.The misunderstanding for the lake management was discussed.Base on developing target system of the lake ecological safety evaluation some suggestion focused on the eco-recovery and sustainable development of the lakes in the North China were put forward:it was key to determine the ecological water demand of the lakes then to manage the lakes according to the science manner.It should be strengthen to protect,recovery and reconstruct the wetland.It would be important to develop rapidly eco-environmental engineering suited to the actual situation of the North District in China.
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