Impact of gully on soil moisture of shrubland in wind-water erosion crisscross region of the Loess Plateau

HUO Zhu; SHAO Ming-An; LISI

首页> 外文期刊>土壤圈（英文版） >Impact of gully on soil moisture of shrubland in wind-water erosion crisscross region of the Loess Plateau

【24h】

Impact of gully on soil moisture of shrubland in wind-water erosion crisscross region of the Loess Plateau

机译：黄土高原风蚀水蚀交错带沟壑对灌丛土壤水分的影响

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

页面导航

摘要
著录项
相关主题

摘要

The most serious erosion on the Loess Plateau of China exists in the wind-water erosion crisscross region where the annual precipitation is about 400 ram,the ecological environment is very fragile,and water is the key limiting factor for improving the environment.In this study,changes of soil moisture content for Caragana korshinskii Kom.shrubland in the gully bank of the Loess Plateau were studied using the methods of soil sampling and neutron probe.A typical gully (75 m long,28 m wide,and 10 m deep) was selected,and six neutron probe access tubes (6 m long) were installed at points 50,100,200,300,400,and 500 cm from the gully border for obtaining soil moisture data from July to October 2004 at approximately 10 d intervals.Soil samplings were simultaneously carried out for moisture determination at the six points.Results showed that the soil moisture of the shrubland in the gully bank significantly varied between 300 and 400 cm in the horizontal direction and up to 600 cm in vertical direction of the gully.Seasonal changes in soil moisture revealed a curve with a single peak that occurred at the end of August or early September.A linear regression equation was fit for soil water storage and the distance from the gully border,with coefficients depending on rainfall characteristics,sampling point,and time of measurement.

机译：黄土高原地区最严重的侵蚀存在于风水侵蚀纵横交错的地区，年降水量约为400 ram，生态环境非常脆弱，水是改善环境的关键限制因素。通过土壤采样和中子探针的方法，研究了黄土高原沟壑区柠条锦鸡儿灌丛土壤水分含量的变化。典型的沟壑长75 m，宽28 m，深10 m。选择，在距沟壑边界50、100、200、300、400和500 cm处安装了六个中子探针通道（6 m长），以大约10 d的间隔获取2004年7月至10月的土壤水分数据。同时对土壤进行了水分采样结果表明，沟壑岸灌丛的土壤水分水平在300至400 cm之间变化，垂直方向在600 cm以下变化很大。土壤水分的季节变化显示在8月底或9月初出现一个单峰曲线。线性回归方程适用于土壤蓄水量和距沟渠边界的距离，其系数取决于降雨特征，采样点和测量时间。

著录项

来源
《土壤圈（英文版）》 |2008年第5期|674-680|共7页
作者
HUO Zhu; SHAO Ming-An; LISI;
展开▼
作者单位

Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101 China;

Graduate University of the Chinese Academy of Sciences,Beijing 100049 China;

Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101 China;

Agronomy Department of Iowa State University,Ames,IA 50011-I010 USA;

展开▼
收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类农业基础科学;
关键词
erusion; gully; shrubland; soil moisture;

机译：侵蚀;沟壑;灌丛;土壤水分;

Impact of gully on soil moisture of shrubland in wind-water erosion crisscross region of the Loess Plateau

摘要

著录项

相关主题

期刊订阅