[1]李娇,牛健植.北京西山侧柏林和刺槐林土壤水分研究[J].水土保持研究,2013,20(01):98-101.
　LI Jiao,NIU Jian-zhi.Study on the Soil Water Characteristics of R. pseudoacacia and P. orientalis in the West of Beijing[J].Research of Soil and Water Conservation,2013,20(01):98-101.
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北京西山侧柏林和刺槐林土壤水分研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年01期 页码: 98-101 栏目: 出版日期: 2013-02-28
Title:
Study on the Soil Water Characteristics of R. pseudoacacia and P. orientalis in the West of Beijing
作者:
李娇, 牛健植
北京林业大学 水土保持学院/水土保持与荒漠化防治教育部重点实验室, 北京 100083
Author(s):
LI Jiao, NIU Jian-zhi
Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China
关键词:
土壤水分特征曲线; 刺槐; 侧柏; 持水性; 供水性
Keywords:
soil water characteristic curve; R. pseudoacacia; P. orientalis;  soil water retention; soil water supply capacity
分类号:
S152.7
摘要:
为了解不同人工林树种对土壤的改良情况，探究北京西山地区不同林分下土壤水分状况，通过对原状土样土壤水分特征曲线的拟合，分析刺槐林下和侧柏林土壤的水分状况。研究表明：该区土壤质地较粗，植物利用水分困难，侧柏林下土壤持水性要比刺槐好，侧柏和刺槐对土壤上层和下层改良作用不同；在刺槐林下，上层土壤持水性好于下层；而在侧柏林下，下层土壤持水性则好于上层；在供水性方面，刺槐林较侧柏林好，且同一立地条件下表层优于底层。刺槐林和侧柏林下土壤易效水和难效水的吸力界点都在0.3 MPa左右。
Abstract:
In order to understand the improvement of the soil under the different species plantations and to explore the different types of soil moisture conditions in Xishan area of Beijing, original soil samples were taken under R. pseudoacacia and Platycladus. Soil water characteristic curve was measured by using centrifuge dewatering experiment. Related parameters were obtained by fitting the curve,then soil moisture conditions were analyzed in the R. pseudoacacia forest and P. orientalis forest. Results showed that the soil texture of this area was coarse and plant utilization of water was really difficulty. Generally,the soil in P. orientalis plantation was more sufficient than the R. pseudoacacia in terms of water retention. And each plant species had different improving effect, and water retention of the upper soil was better than that the lower soil layer. In the R. pseudoacacia forest, the upper soil was stronger than the lower soil in terms of water retention. While in the P. orientalis forest, the upper soil was weaker than the lower in terms of water retention.With regard to soil water supply capacity, R. pseudoacacia was intenser than P. orientalis, and the topsoil was intenser than the subsoil under the same site conditions. Both in the R. pseudoacacia and P. orientalis forest, the boundary point of suction for readily available water and resistantly available water was 0.3 MPa.

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备注/Memo

收稿日期:2012-06-07;改回日期:2012-08-14。
基金项目:国家林业公益性行业科研专项“典型森林植被对水资源形成过程的调控研究”（20110405）；国家“十二五”科技支撑项目“三北地区水源涵养林体系构建技术研究与示范”（2011BAD38B05）；国家自然科学基金项目（30800888）
作者简介:李娇(1991-),女,新疆昌吉奇台人,本科生,主要研究方向:水土保持与荒漠化防治。E-mail:857808428@qq.com
通讯作者:牛健植(1974-),女,吉林四平人,博士,副教授,主要研究方向:林业生态工程。E-mail:nexk@bjfu.edu.cn

更新日期/Last Update: 1900-01-01