Abstract:

In the Changjiang River Basin,there are diverse ecoenvironment and numerous biospecies and communities.Various types of natural reserve which have been set up have played a crucial role in protecting all kinds of essential bioenvironment,and saving extinct biospecies and natural relics.This paper utilized several analytical methodologies such as overlay method and math statistics to recognize and count amount,area,type,distribution and management in this region.Meanwhile,it also discussed biorestrictive issues on the exploitation.The study shows that up to Dec.2008,there are 827 natural reserves set up in the Changjiang River Basin.The total area accounts for 199% of the whole valley,being higher than the national average.A network of natural reserve with various types,sound distribution and strong function has begun to take shape.However,in this region,both water power resources and key natural reserves mainly distribute along the upstream.Under these circumstances,a conflict between how to make considerable use of water power resources and how to preserve natural reserve arises.Therefore,ecoenvironmental protection for natural conservation areas with different kinds and at diverse levels should be regarded when water power is exploited among the upstream region.