[1]赵佰礼,穆兴民,高鹏,等.黄土丘陵沟壑区不同退耕草地土壤水分研究[J].水土保持研究,2019,26(04):111-115.
　ZHAO Baili,MU Xingmin,GAO Peng,et al.Study on Soil Moisture in Two Returning Farm-land Patterns in Gully and Hilly Region of the Loess Plateau[J].Research of Soil and Water Conservation,2019,26(04):111-115.
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黄土丘陵沟壑区不同退耕草地土壤水分研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年04期 页码: 111-115 栏目: 出版日期: 2019-06-11
Title:
Study on Soil Moisture in Two Returning Farm-land Patterns in Gully and Hilly Region of the Loess Plateau
作者:
赵佰礼1, 穆兴民1,2, 高鹏1,2, 赵广举1,2, 孙文义1,2, 田鹏1,2
1. 西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
2. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100
Author(s):
ZHAO Baili1, MU Xingmin1,2, GAO Peng1,2, ZHAO Guangju1,2, SUN Wenyi1,2, TIAN Peng1,2
1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
关键词:
黄土高原; 水平阶草地; 自然草地; 土壤含水量
Keywords:
the Loess Plateau; bench grassland; natural grassland; soil water content
分类号:
S152.7
摘要:
为了研究黄土丘陵沟壑区不同退耕方式、不同深度土壤水分含量的变化规律。以陕西省安塞县纸坊沟流域水平阶草地和自然草地两种退耕草地为研究对象，通过野外定位连续观测资料，研究了两种草地0—500 cm土层内的土壤含水量变化。结果表明：降水对土壤水分的影响比较明显，且水平阶退耕草地土壤含水量（13.38%）> 自然退耕草地（13.21%）；水平阶退耕草地和自然退耕草地浅层土壤含水量的年内变化趋势基本相同；200 cm深度以下水平阶退耕草地普遍高于自然退耕草地；在不同生长周期土壤水分在不同深度具有明显差异，以生长期为例，0—100 cm深度平均土壤含水量自然退耕草地（12.46%）> 水平阶退耕草地（11.58%），100 cm深度处自然退耕草地（14.02%）< 水平阶退耕草地（14.44%）；次降雨对不同深度土壤含水量的影响不同，对表层土壤含水量影响最大。研究结果表明：在退耕还草基础上应该适当采取一些水土保持措施来提高退耕地植被恢复的效果。
Abstract:
Understanding the variation of the soil moisture of different farm-land conversion patters and depth is important for better using the soil water in the Loess Hilly region. Using field positioning continuous observation data, we reviewed the soil moisture between bench grassland and nature grassland in Zhifang catchment of Ansai, Shaanxi Province that soil depth falls into the scope of 0—500 cm. The results of the study show that the effect of rainfall on soil moisture is obvious, and the soil moisture content of bench grassland (13.38%) is higher than that of natural grassland (13.21%); the variation trend of soil moisture content was basically the same in bench grassland and natural grassland; soil moisture content of the layer below 200 cm in the bench grassland is generally higher than that of the natural grassland; soil moisture has obvious difference at different depths in different periods; in the growth period, averaged soil water content moisture content of natural grassland(12.46%) is higher than that of horizontal grassland(11.58%) in 0—100 cm depth, the soil moisture of nature grassland (14.02%) is less than that of the bench grassland (14.44%); the effects of individual rainfall event on soil moisture at different depths are different, and the influence of surface layer is the largest. The results suggest that, some measures of soil and water conservation should be taken to improve the effect of vegetation restoration on the basis of conversion of farmland to grassland.

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备注/Memo

收稿日期:2018-09-04;改回日期:2018-11-15。
基金项目:国家重点研究计划专题计划（2016YFC0501707）；科技基础专项（2014FY210100）；水利公益性行业科研专项（201501049）
作者简介:赵佰礼(1992-),男,甘肃武威人,硕士研究生,研究方向为流域生态学和水土保持。E-mail:337395391@qq.com
通讯作者:高鹏(1976-),男,陕西扶风人,博士,副研究员,博士生导师,主要从事水土保持和流域生态学研究。E-mail:gaopeng@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01