摘要
以三江平原典型沼泽性河流挠力河为主要研究对象 ,结合多种分析方法 ,对挠力河的径流演变特征及趋势作了较为全面的分析。结果表明 ,三江平原典型沼泽性河流径流演化过程中表现出明显的阶段性、相依性 ;自 60年代至 80年代末 ,径流量总体呈现减少趋势 ,径流演变过程具有明显的突变特征。这些演化规律均与沼泽化流域的地理特征以及近 5 0a来沼泽及沼泽化土地的大规模开垦和水资源的开发利用有密切的关系 ,因此必须加强沼泽生态用水和湿地水资源调控等的研究工作。
In this paper, stochastic hydrologic methods are applied to analyze the characteristics and tendency of annual runoff changes of Naoli River, which is regarded as a typical marshy river in Sanjiang plain. The results show that the process of annual runoff evolvement is of indicative phases and dependence. The amount of annual runoff in the Naoli River tends to decrease, and it has the characteristic of abrupt changes. These characteristics and tendency of runoff changes are related with the characteristics of marshy drainage areas and human activities, especially after 1960. Thus the study of marsh ecological water consumption and wetlands water resource regulation should be enhanced.
出处
《资源科学》
CSSCI
CSCD
北大核心
2002年第5期52-57,共6页
Resources Science
基金
中国科学院"湖沼三期"特别支持项目资助 (编号 :ZKHZ 3 5 )
