[1]周玉红,董建国,汪有科,等.几种典型覆盖下的土壤水分恢复研究[J].水土保持研究,2015,22(02):334-339.
　ZHOU Yuhong,DONG Jianguo,WANG Youke,et al.Research on Soil Water Recovery Ability Under Different Typical Mulches[J].Research of Soil and Water Conservation,2015,22(02):334-339.
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几种典型覆盖下的土壤水分恢复研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年02期 页码: 334-339 栏目: 出版日期: 2015-04-28
Title:
Research on Soil Water Recovery Ability Under Different Typical Mulches
作者:
周玉红1, 董建国2, 汪有科1,2, 白盛元1, 靳珊珊2
1. 西北农林科技大学 水利与建筑工程学院, 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):
ZHOU Yuhong1, DONG Jianguo2, WANG Youke1,2, BAI Shengyuan1, JIN Shanshan2
1. College of Water Resources and Architectural Engineering, 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; 土壤水分; 典型覆盖; 变异系数
Keywords:
hilly loess region; soil water content; typical mulch; variable coefficient
分类号:
S152.7;S274.1
摘要:
为了探索半干旱黄土丘陵区典型覆盖措施下土壤水分恢复的特征，采用野外大型土柱定位观测了几种覆盖下土壤水分的变化，结果表明：（1）与裸地相比，薄膜覆盖下土壤水分增加最显著，其次为树枝覆盖；（2）从土壤水分的含量来看，裸地在当地有利于土壤水分的恢复；（3）从逐月累计土壤储水增量来看，经过一个生育期，不同处理下土壤储水增量均有不同程度的增加，到9月份时，薄膜覆盖 > 树枝覆盖 > 裸地 > 早熟禾。三种无植物处理下土壤储水增量随着时间的变化呈直线上升的关系，其中薄膜覆盖与逐月累计降雨量关系最紧密。有植物种植的处理中（早熟禾），土壤储水增量与时间呈非线性关系；（4）随着土层的增加，变异系数逐渐减小，早熟禾和裸地在200 cm以下，基本达到稳定，树枝覆盖在240 cm以下达到稳定，薄膜覆盖大概在340 cm以下达到稳定。
Abstract:
This study aimed to analyze soil water recovery ability under different typical mulches in the hilly loess region and adopted the large soil columns to observe soil water contents in the field. Results showed that soil water content significantly increased under plastic film mulch compared with barren land. Weeding was beneficial to soil water recovery in the local area. Accumulative storage of soil water increased during growth period, which decreased in the order of film mulching > branches mulching > barren land > bluegrass planting at the end of September. Increment accumulative storage of soil water under four no-plant treatments has linear relations with the month change and plastic film mulch has the close relationship with monthly accumulative rainfall, but accumulative storage of soil water under bluegrass planting has the non-linear relationship with rainfall. With the increase of soil layers, variable coefficient became less gradually, and the variable coefficients became steady below the depth of 200 cm in bluegrass and barren lands; the stable depths under branch mulch and plastic film mulch were 240 cm and 340 cm, respectively.

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备注/Memo

收稿日期:2014-12-31;改回日期:2015-02-02。
基金项目:国家科技支撑计划资助项目（2011BAD29B04，2013BAD20B03）
作者简介:周玉红(1987-),女,甘肃秦安人,硕士生,主要研究农业水分高效利用。E-mail:zyhgrape@163.com
通讯作者:汪有科(1956-),男,甘肃民勤人,研究员,博士生导师,主要从事作物高效用水和水土保持研究。E-mail:gjzwyk@vip.sina.com

更新日期/Last Update: 1900-01-01