【作者】 陈丽华； 王礼先；

【Author】 CHEN Li- hua,WANG Li- xian (College of Resources and Environment,Beijing Forestry University,Beijing 1 0 0 0 83 ,China)

【机构】 北京林业大学资源与环境学院；

【摘要】 生态用水是为维护或改善组成现有生态系统的植物群落、动物以及非生物部分的平衡所需要的水量 ,分为绿色植物用水、动物用水和维护无机环境的生物平衡所需的水分三部分。据计算分析 ,确定出北京市森林植被的平均年生态用水量为 3 70 .5 3 m m。更多还原

【Abstract】 Ecological water use is the requirement of water yield to maintain and improve the blance of existing ecological system,which is composed of flora,fauna and non- organisms.Ecological water use consist of three parts,that is,water use of green plant,animals’ water use and water yield required by maintaining organic balance in inorganic environment.It is calculated that the average annual ecological water use of forest cover in Beijing is about 370 .5 3mm.更多还原