额济纳地区绿洲恢复生态需水量研究

在现有研究的基础上,再度明确了生态需水量的涵义;通过对干旱地区植被生态需水量现有计算方法的分析,考虑植被盖度对生态需水量的影响,提出了计算干旱地区天然植被生态需水量的新方法;在对额济纳绿洲现状分布特点分析的基础上,综合考虑绿洲恢复规模和生态功能之间的关系,提出了额济纳绿洲恢复的若干方案,应用所提出的生态需水量计算方法对各方案生态需水量进行计算,并以研究区未来可利用水资源总量为约束,确定了额济纳绿洲未来的恢复方案。

Study on the ecological water requirements for restoring the oasis in Ejina Region

The specific meaning of the ecological water requirements have been cleared once again based on the present research.According to the analysis for the methods to calculate the vegetation ecological water requirements at present,considered the impact of the vegetation coverage to the ecological water requirements,this paper put forward the new method to calculate the ecological water requirements of natural regetation in arid area.Based on the analysis to the current distribution characters of the Ejina oasis,considered synthetically the relationships between the oasis restoration scale and ecological function,this paper put forward several schemes about oasis restoration.Finally,using the new method confirmed to calculate the ecological water requirements for each scheme,taking the total amount of available water resources as restriction in research area,this paper determined the future restoring scheme in Ejina Region.