中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
云南元谋干热河谷区放牧对人工幼林地土壤水分性质的影响

文献类型:期刊论文

作者张建辉; 李勇
刊名水土保持学报
出版日期2000
卷号14期号:2页码:41-45
关键词土壤水分 人工造林地 放牧 干热河谷
ISSN号1009-2242
其他题名Soil Water Properties of Afforested Land as Affected by Livestock Grazing in Yuanmou Dry—hot Valley,Yunnan Province
通讯作者张建辉
合作状况其它
中文摘要通过对云南元谋干热谷人工林地无控制放牧和禁止放牧条件下的土壤水分物理性质的变化对比,分析了放牧对幼林地植物生长土壤水分环境的影响,结果表明,自由放牧地土壤初始入渗速率较放牧地低1.3-5.2倍,并且在60,120min供水试验期内累计土壤入渗量分别低1.9-11.9倍和1.2-12.5倍。自由放牧地土壤持水力也较低,特别是有效水含量较禁止放牧地低19.31%-53.83%。
英文摘要Livestock grazing in the young forest is one of serious problems affecting vegetative rehabilitation in the Yuanmou Dry-Hot Valley,Yunnan Province. Soil water pmpertles of the young afforested land were studied 5 years after uncontrolled successive goat grazing.Compared  with the ungrazed land,initial infiltration rates in the grazed land were 1.3~ 5.2 times lower. Aeeum ulated infihration in the grazed land were 1.9~ 11.9 tim as lower than those in the ungrazed Iand at the end of 60 min of the infiltration experiment and l_2~ 1Z.5 tim es at the end of 120 min.Soil water retention in the ungrazed land were also weak in com parison with those in the ungrazed land. Especially,soil available water contents in the grazed land were 1 9.31 ~53.83 lower than those in the ungrazed land.In the eases of hmited precipitation and contra-diction between water supply and water demand of plants in this region,deterioration of soil water properties in young afforested land further exaggerated soil water deficit,whereby imposing an adverse effect on the growth of young tre s in afforested land.
学科主题S714.7
分类号S714.7
收录类别CSCD ; 北大中文核心
资助信息中国科学院山地环境学“百人计划”;国家自然科学基金资助项目! (编号 :496 0 2 0 41 )
语种中文
CSCD记录号CSCD:774721
公开日期2010-08-14
源URL[http://ir.imde.ac.cn/handle/131551/1381]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位中国科学院水利部成都山地灾害与环境研究所
推荐引用方式
GB/T 7714
张建辉,李勇. 云南元谋干热河谷区放牧对人工幼林地土壤水分性质的影响[J]. 水土保持学报,2000,14(2):41-45.
APA 张建辉,&李勇.(2000).云南元谋干热河谷区放牧对人工幼林地土壤水分性质的影响.水土保持学报,14(2),41-45.
MLA 张建辉,et al."云南元谋干热河谷区放牧对人工幼林地土壤水分性质的影响".水土保持学报 14.2(2000):41-45.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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