人为输水干扰下不同树高级胡杨个体的分布特征研究--以塔里木河下游为例  

Study on Tree Height Distribution of Populus euphratica Forest under Human Disturbance and Eco-Water Transportation——A Case of the Lower Reaches of Tarim River

作　　者：蔡福艳[1] 玉米提.哈力克 王金山[1] 阿迪里.阿不来提 买尔燕古丽.阿不都热合曼 

机构地区：[1]新疆大学资源与环境科学学院 [2]新疆塔里木河流域管理局,新疆库尔勒841000 [3]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《新疆农业科学》2008年第3期559-563,共5页Xinjiang Agricultural Sciences

基　　金：国家自然科学基金项目(30760050);新疆维吾尔自治区高校科研计划重点项目(XJEDU2004I08);新疆绿洲生态重点实验室开放课题基金项目(XJDX0201-2007-05);新疆塔里木河流域管理局委托横向项目(140649)

摘　　要：自2000年实施的向塔里木河下游8次应急输水对以胡杨为主体的荒漠河岸林产生了一定的恢复作用。为了定量评估胡杨对人为输水的响应程度,采用"面"上宏观调查与"点"上典型研究相结合的方法,以塔里木河下游阿拉干断面设立的长期监测样地内的胡杨为研究对象,分析与研究了树高及其分布特征。结果表明:不同树高级的胡杨分布具有一定规律性;随着离河距离的增加,胡杨株数呈递减趋势;特别是在距河50 m范围内人为输水干扰对胡杨幼苗更新具有显著作用。The implementation of 8 times emergent water delivering began in 2000. This project has produced a certain role in the reeoverying the main Populus euphratlca of the hungriness riverside forest. In order to quantitatively evaluate P. euphratica response to human water transmission, the method of combining macro surveying and classical research was applied, taking the P. euphratica forest in the Afghan section on the lower reaches of Tarim River as long - term monitoring plots. The tree height and distribution characteristics are analyzed and researched. The results showed that distrbution of P. euphratica of diferent tree height groups has a certain regularity; the number of P. euphratica decreases when the distance from the river increases; especially there is a significant role in regeneration of seedlings in the 50 m from the river bank.

关 键 词：树高级 塔里木河下游 生态输水 人为干扰 

分 类 号：S792.119[农业科学—林木遗传育种] X171.4[农业科学—林学]