干旱区生态环境知识资源中心(Arid): 滇石林石漠化与次生林的土壤含水率时空变化比较研究

Arid

	滇石林石漠化与次生林的土壤含水率时空变化比较研究
其他题名	Comparison of spatio-temporal variations of soil moisture in rock desertification and secondary forest areas of Shilin,Yunnan
	何贝贝 1; 沈有信 1; 朱习爱 1; 刘志勇 2
来源期刊	中国岩溶
ISSN	1001-4810
出版年	2018
卷号	37 期号:4 页码:555-561
中文摘要	土壤水分是植被发育和生态恢复的关键。降雨、植被等影响着土壤含水率的时空异质性等的变化,这种作用在西南喀斯特地区尤为显著。以云南石林为例,选取典型石漠化样地及次生林样地,利用PR2(PR2-UM-2.0)传感器于每月月末对两类样地中0~1 000mm土层的土壤含水率进行测定。结果表明:(1)石漠化样地各土层的土壤含水率在1年测定时间范围内均显著高于次生林样地,这与非喀斯特区域植被-土壤含水率关系不同;(2)两类样地的1年内各月土壤含水率之间差异显著,雨季各层土壤含水率高且波动较旱季小;(3)土壤含水率随土层深度增加而增加,400~600mm范围增幅最大,600mm以下的土壤含水率增幅会逐渐减小。
英文摘要	Soil moisture is key to vegetation development and ecological restoration.The temporal and spatial variations of soil moisture are mainly affected by rainfall and vegetation,which is particularly significant in karst areas.The PR2sensor was used to measure the Soil Moisture Content(SMC)of two typical soils at the depth of 0-1,000mm on a monthly basis,with the case in the Rock Desertification Ecosystem (RDE)and Secondary Forest Ecosystem(SFE)in Shinlin,Yunan Province,China.The results show that the SMC of the RDE is significantly higher than that of the SFE during the study period,which is completely different from non-karst regions.The SMCs of both monitoring sites show considerably monthly difference,which fluctuates along with monthly weather and rainfall.Furthermore,the SMC increases with the depth at a soil profile;and it increases the most at the depth from 400to 600mm.Below 600mm deep,the SMC gradually declines.
中文关键词	喀斯特地区 ; 土壤含水率 ; 时间序列 ; 土层垂直变化 ; 植被影响
英文关键词	karst ecosystem soil moisture content time series vertical change of soil vegetation influence
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6360544
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238863
作者单位	1.中国科学院西双版纳热带植物园, 昆明, 云南 650223, 中国; 2.宜良县市政园林管理所, 宜良, 云南 652100, 中国
推荐引用方式 GB/T 7714	何贝贝,沈有信,朱习爱,等. 滇石林石漠化与次生林的土壤含水率时空变化比较研究[J],2018,37(4):555-561.
APA	何贝贝,沈有信,朱习爱,&刘志勇.(2018).滇石林石漠化与次生林的土壤含水率时空变化比较研究.中国岩溶,37(4),555-561.
MLA	何贝贝,et al."滇石林石漠化与次生林的土壤含水率时空变化比较研究".中国岩溶 37.4(2018):555-561.