[1]郑郁,张霞,辛向文,等.陕北地区不同纬度带人工刺槐林土壤水分特征研究[J].水土保持研究,2013,20(04):8-12.
　ZHENG Yu,ZHANG Xia,XIN Xiang-wen,et al.Study on Characteristics of Soil Moisture of Artifical Robinia pseudoacacia Forests Under Different Latitude in Northern Shaanxi[J].Research of Soil and Water Conservation,2013,20(04):8-12.
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陕北地区不同纬度带人工刺槐林土壤水分特征研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年04期 页码: 8-12 栏目: 出版日期: 2013-08-28
Title:
Study on Characteristics of Soil Moisture of Artifical Robinia pseudoacacia Forests Under Different Latitude in Northern Shaanxi
作者:
郑郁1, 张霞1, 辛向文2, 刘国彬3, 胡永红4
1. 陕西省环境科学研究院, 西安 710061;
2. 陕西省水利电力勘测设计研究院, 西安 710001;
3. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100;
4. 陕西安塞县农技推广站, 陕西 延安 717400
Author(s):
ZHENG Yu1, ZHANG Xia1, XIN Xiang-wen2, LIU Guo-bin3, HU Yong-hong4
1. Shaanxi Provincial Academy of Environmental Sciences, Xi’an 710061, China;
2. Shaanxi Provincial Institute of Water Resources and Electric Power Investigation and Design, Xi’an 710001, China;
3. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
4. Extending Stations for Agricultural Technology of Ansai County, Yanan, Shaanxi 717400, China
关键词:
刺槐; 土壤水分; 土壤储水量; 水分亏缺度
Keywords:
Robinia pseudoacacia; soil moisture; soil water storage; deficit degree
分类号:
S152.7
摘要:
为研究黄土高原地区人工刺槐林地土壤水分变化特征，对陕北地区不同纬度带30 a人工刺槐林林下土壤剖面水分条件进行研究，以期探索该区域刺槐林地土壤水分含量及相关因素的响应规律，结果表明：土壤水分含量随土层深度的增加而降低，且在40—50 cm深处出现水分显著降低的跃变点；淳化以北5个样地土壤水分均低于生长阻滞水分含量，存在不同程度的亏缺，处于砂壤带的榆林、神木以及轻壤带的绥德样地其土壤水分亏缺度均超过50%，呈严重亏缺；随着纬度的增加，土壤累积储水量与净降雨量均呈现降低的趋势，且两者的变化显著相关，说明不同的纬度带特征是造成土壤水分差异显著的主要原因。
Abstract:
Study on soil moisture conditions of 30 years artificial Robinia pseudoacacia in the north of Shaanxi under different climate conditions in order to explore the relationship between soil moisture and impact factor of Robinia pseudoacacia in this area, and variation characteristics of soil moisture in the Loess Plateau region. The results show that soil moisture content decreases with the increase of soil depth, and in 40—50 cm depth the jump point of moisture reduction appears significantly. Soil moisture was lower than the growth critical moisture in 5 samples to the north of Chunhua, and has different degrees of deficit. Soil moisture deficit degree was more than 50% in sandy loam and light loam soils such as YuLin, Shenmu and Suide. With the increasing of latitude, both of soil accumulative storage and net rainfall tends to decrease, and the relationship between them is significant correlation, indicating that that climate conditions are the major factors causing significant difference of soil moisture.

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备注/Memo

收稿日期:2013-01-09;改回日期:2013-01-30。
基金项目:陕西省科学技术研究发展计划项目（2011KJXX63）；中国科学院战略性先导科技专项（XDA05060300）
作者简介:郑郁(1983-),女,硕士研究生,主要从事水土保持及环境治理方面的研究。E-mail:xxwoyc@163.com

更新日期/Last Update: 1900-01-01