收稿日期: 2008-04-27
修回日期: 2008-06-12
网络出版日期: 2008-07-10
基金资助
国家自然科学基金杰出青年基金项目“荒漠绿洲水文—生态过程耦合试验模拟研究”(编号：40725001);国家自然科学基金项目“荒漠绿洲水文—生态过程耦合试验研究” (编号：40671010)和“极端干旱区胡杨单株与林分耗水是测定与尺度转换研究”(编号：40501012)；国家自然科学基金重点项目“黑河流域生态—水文过程研究集成”（编号：90702001）资助.
Feature of Root Distribution of Populus Euphratica and Its Water Uptake Model in Extreme Arid Region
Received date: 2008-04-27
Revised date: 2008-06-12
Online published: 2008-07-10
冯起 , 李建林 , 席海洋 , 司建华 . 胡杨根系分布特征与根系吸水模型建立[J]. 地球科学进展, 2008 , 23(7) : 765 -772 . DOI: 10.11867/j.issn.1001-8166.2008.07.0765
Based on the data observed at Ejin Banner from June to July in 2006 and 2007, using fractal theory and statistical method, the relationship between root distribution of Populus euphratica oliv and soil moisture content of root system was analyzed. A new definition, expectation of soil moisture content (E/ cm·g·g-1), was introduced in order to reflect better characteristic of soil moisture in root zone. The function between expectation of soil moisture content and root fractal dimensions was obtained. Also built the preliminary root water uptake model, and a good result by comparing the simulation value with observation value was achieved.
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