海河流域旱涝灾害的人类生态环境分析

The Analysis of the Correlativity Between Disaster Drought or Flood and Human Environment in Drainage Area of the Haihe River

以海河流域为实例 ,在聚类分区的基础上 ,通过图示叠合之方式再现了近百年人类生态环境下的灾害趋势 ,认识到地形与灾害之发生是亦步亦趋的 ,并分析了海河流域典型的扇状水系与洪涝灾害的关系 ,以及人类对自然所做的改造之效益与反作用 ,进而总结了灾害。

This paper takes Drainage Area of the Haihe river(DAHR)for research example,bases clustering area on facts and exhibits the disaster trend which is in man made environment for 100 years to superpose on maps.Thus it analyses benefit and counteractive of man made environment,and sums again up the correlativity between the disasters and man made environment.It can be seen that disaster's distributing accords with circularity landform.The fanlike system of DAHR strengthens waterlog and weakens drought.