[1]马雯静,毕华兴,云雷,等.晋西黄土区林草复合界面土壤水分养分分布规律研究[J].水土保持研究,2009,16(05):78-82.
　MA Wen-jing,BI Hua-xing,YUN Lei,et al.Distribution of Soil Moisture and Nutrients at the Grassland-Forestland Interface in the Loess Region of West Shanxi Province[J].Research of Soil and Water Conservation,2009,16(05):78-82.
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晋西黄土区林草复合界面土壤水分养分分布规律研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 16 期数: 2009年05期 页码: 78-82 栏目: 出版日期: 2009-10-20
Title:
Distribution of Soil Moisture and Nutrients at the Grassland-Forestland Interface in the Loess Region of West Shanxi Province
作者:
马雯静, 毕华兴, 云雷, 陈攀攀, 田晓玲
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, 山西吉县森林生态系统国家野外科学观测研究站, 北京 100083
Author(s):
MA Wen-jing, BI Hua-xing, YUN Lei, CHEN Pan-pan, TIAN Xiao-ling
College of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil and Water Conservation and Desertification Combating of Ministry of Education, National Field Research Station of Forest Ecosystem of Jixian, Shanxi, Beijing 100083, China
关键词:
林草复合界面; 土壤水分; 土壤养分; 晋西黄土区
Keywords:
grassland-forestland interface; soil moisture; soil nutrients; loess region of west Shanxi province
分类号:
S812.2;S152.7
摘要:
通过对晋西黄土区刺槐林与天然草带的复合界面及其对照（林地、草地）生长季土壤水分和养分（有机质、全氮、速效氮和速效钾）的测定，分析比较了其水分和养分的空间分布特征及其变化规律。结果表明，不同土壤层次的土壤含水量在水平方向上存在差异，在浅层土壤（0-20cm），土壤含水量从大到小依次为：草地、林地、林草界面，在深层土壤（20-100cm），土壤含水量从大到小依次为：草地、林草界面、林地；在垂直方向上，随着土层深度的增加，研究区林地、草地、林草界面的土壤含水量表现为逐渐降低的趋势，刺槐林地在60-100cm土层中土壤含水量有少许回升。研究区复合类型内土壤养分分布不均衡，水平方向上有机质平均含量为林草界面<草地<林地；全氮平均含量为林草界面最小，草地与林地相差不大；速效磷平均含量为林地<草地<林草界面；速效钾平均含量为草地<林草界面<林地；垂直方向上，各个生态类型的有机质含量、全氮含量、速效钾含量随着土壤层次的加深逐渐减少，而速效磷含量在土壤的不同层次呈现不同的变化。
Abstract:
Based on the determination of soil moisture and nutrients at the grassland-forestland interface in the Loess Region of West Shanxi,comparative analysis of soil moisture and nutrients distribution and spatial variability were carried out.The results indicated that: the soil moisture between different soil layers under interface in horizontal direction presented different for different kinds.In 0-20cm soil layer the soil moisture content is grassland>forestland>grassland-forestland,and in 20-100cm soil layer the soil moisture content is grassland>grassland-forestland>forestland.With increasing soil depths,the soil moisture showed reducing tendency but increased in forestland in 60-100cm soil layer.The soil nutrients were unevently distributed.In horizontal direction,the average content of organic matter is grassland-forestland

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备注/Memo

收稿日期:2009-3-3;
基金项目:国家“十一五”科技支撑项目“黄土区农林复合系统可持续经营技术研究”（2006BAD03A0503）
作者简介:马雯静(1985-)，女，河南漯河人，硕士，主要研究方向：农林复合系统种间关系。E-mail：mawenjinggood@163.com
通讯作者:毕华兴(1969-)，男，陕西米脂人，博士，教授，主要研究方向：林业生态工程。E-mail：bhx@bjfu.edu.cn

更新日期/Last Update: 1900-01-01