Effects of Soil Surface Mulching on the Water Use of Artificial Grassland in the Water-Wind Erosion Crisscross Region of the Loess Plateau

doi:10.11733/j.issn.1007-0435.2010.02.006

›› 2010, Vol. 18 ›› Issue (2): 172-176,182.DOI: 10.11733/j.issn.1007-0435.2010.02.006

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Effects of Soil Surface Mulching on the Water Use of Artificial Grassland in the Water-Wind Erosion Crisscross Region of the Loess Plateau

XIE Hui-hui¹, FAN Jun^1,2, HAO Ming-de^1,2, WANG Jian-guo¹, QI Li-bin^2,3

1. College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi Province 712100, China;
2. State Key Laboratory of Soil Erosion and Dry land Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and the Ministry of Water Resources, Yangling, Shaanxi Province 712100, China;
3. Sanmenxia Polytechnic, Sanmenxia, Henan Province 472000, China

Received:2009-10-14 Revised:2010-01-09 Online:2010-04-15 Published:2010-04-15

地表覆盖对黄土高原水蚀风蚀交错区人工草地水分利用的影响

谢慧慧¹, 樊军^1,2, 郝明德^1,2, 王建国¹, 齐丽彬^2,3

1. 西北农林科技大学资源环境学院, 陕西, 杨凌, 712100;
2. 中国科学院水利部水土保持研究所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;
3. 三门峡职业技术学院, 河南, 三门峡, 472000

通讯作者: 樊军,E-mail:fanjun@ms.iswc.ac.cn
作者简介:谢慧慧(1984- ),女,陕西榆林人,硕士研究生,研究方向为退化生态系统碳、水通量,E-mail:xiehui3108hh@gmail.com
基金资助:
中国科学院、国家外国专家局创新团队国际合作伙伴计划(KZCX2-YW-Q10)资助

Abstract

Abstract: Planting alfalfa is the main method of returning farmland to grassland in the water-wind erosion crisscross region of the Loess Plateau.Because of the low rainfall and the high evapotranspiration in this area,service life of alfalfa is limited by water resources.In Liudaogou catchment of Shenmu County,Shaanxi Province,soil temperature and moisture in different mulching treatments as well as alfalfa water use efficiency have been studied.This research discussed the process of the water consumption of artificial alfalfa(Medicago sativa) on the northern Loess Plateau.Results showed that soil surface mulching could decrease soil temperature and increase soil moisture of the shallow soil layers.Soil moisture in deep soil layers under the different mulching treatments has no obvious difference.Straw mulching and tuberculoid calcium carbonate mulching could improve alfalfa yield and water use efficiency.Mulching can be an effective method in improving grassland productivity in the study area.

Key words: Mulching, Artificial grassland, Water use efficiency, Soil temperature

摘要： 以陕西省神木县六道沟小流域为研究区域,对不同覆盖处理下的紫花苜蓿人工草地土壤温度和土壤水分以及苜蓿的水分利用效率进行研究,探讨了黄土高原北部紫花苜蓿人工草地的水分消耗过程。结果表明,地表覆盖可以显著降低土壤0-6cm表层温度;同时覆盖可以增加浅层土壤水分含量,不同覆盖方式下土壤深层水分含量没有明显差异;覆盖处理下的苜蓿产量及水分利用效率均高于对照处理,说明苜蓿株间覆盖可以提高苜蓿产量以及苜蓿的水分利用效率,覆盖可以作为该区牧草地提高生产力的有效方法。

关键词: 覆盖, 人工草地, 水分利用效率, 土壤温度

CLC Number:

S152.7

XIE Hui-hui, FAN Jun, HAO Ming-de, WANG Jian-guo, QI Li-bin. Effects of Soil Surface Mulching on the Water Use of Artificial Grassland in the Water-Wind Erosion Crisscross Region of the Loess Plateau[J]. , 2010, 18(2): 172-176,182.

谢慧慧, 樊军, 郝明德, 王建国, 齐丽彬. 地表覆盖对黄土高原水蚀风蚀交错区人工草地水分利用的影响[J]. , 2010, 18(2): 172-176,182.

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Effects of Soil Surface Mulching on the Water Use of Artificial Grassland in the Water-Wind Erosion Crisscross Region of the Loess Plateau

地表覆盖对黄土高原水蚀风蚀交错区人工草地水分利用的影响

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