论文部分内容阅读
对长白山区自然资源的开发利用,首先要考虑到对长白山自然保护区的影响。长白山自然保护区一九八○年被列为国际生物圈保护区,参加了国际生物圈保护区网。若是保护区外围林区生态平衡受到破坏,必将影响到保护区内部的生态平衡失调。现根据水文资料,对长白山森林砍伐后,对第二松花江水系文水要素的影响、及有关生态平衡做如下评价: 1.森林对年径流量和径流年内分配量的影响第二松花江上游的径流补给来源主要靠降水,径流的年内变化主要受年内降水的变
Changbai Mountain area of natural resources for the development and utilization, we must first take into account the impact of Changbai Mountain Nature Reserve. Changbaishan Nature Reserve was listed as an international biosphere reserve in 1980 and participated in the International Biosphere Reserve Network. If the ecological balance in the periphery of the reserve is damaged, it will inevitably affect the imbalance of ecological balance within the reserve. Now according to the hydrological data, after the deforestation in Changbai Mountain, the impact of the second Songhua River water and water elements, and the related ecological balance are as follows: 1. The impact of forest on annual runoff and runoff distribution in the second The upper reaches of the Songhua River The main source of runoff supplies is precipitation, and the annual variation of runoff is mainly affected by precipitation during the year