塔里木河干流漫溢后植被群落、盖度变化特征分析研究

Analysis and Study on the Characteristics of Vegetation Community and Coverage Change after Overflow in the Main Stream of Tarim River

分析塔里木河干流区域群落结构与生态输水之间的变化关系对塔里木河流域生态水利用效率的提高具有实际意义。基于实地调查得到塔里木河干流区域的群落结构分布中相对盖度与高度都以乔灌木中胡杨为最大;生态输水以来区域的群落结构逐渐趋于多样化;植被盖度与塔里木河干流来水量基本保持一致,具有一定的滞后性。同时对输水时间进行了浅要讨论,可为塔河流域水资源优化配置的决策制定提供参考。

It is of practical significance to analyze the relationship between community structure and ecological water transport in the main stream of Tarim River for improving the ecological water use efficiency in Tarim River Basin.Based on field investigations,it was found that the relative coverage and height of the community structure distribution in the main stream area of Tarim River are highest among the trees and shrubs,with diversiform-leaved poplar being the highest.Since the ecological water transport,the community structure in the region has gradually become more diverse.The vegetation coverage is basically consistent with the inflow of the main stream of Tarim River,with a certain lag.This paper also discusses the water delivery time,which can provide reference for decision-making on the optimal allocation of water resources in Tarim River Basin.