干旱区生态环境知识资源中心(Arid): 黔中典型岩溶石漠化地区土壤水分动态变化规律研究

Arid

	黔中典型岩溶石漠化地区土壤水分动态变化规律研究
其他题名	Research on Soil Moisture Dynamic Changes in Typical Karst Regions
	范新瑞 1; 苏维词 1; 鄢贵权 2; 曹欢 1
ISSN	1005-3409
出版年	2009
卷号	16 期号:2 页码:156-159
中文摘要	土壤水分动态变化研究在岩溶石漠化地区生态恢复和重建过程中具有重要意义.根据坡位和季节的不同,通过24组样品分析了土壤水分空间分布特征及变异性.结果表明:表层土壤水分沿上坡向下具有不断减小的变化趋势,坡面土壤水分呈中等变异,不同坡位间的差异不大,坡顶和坡底土壤含水量较高,与坡地相比,坡底受外界条件的干扰相对较小;与坡位相比季节对岩溶土壤水的影响相对较大,在雨季来临时土壤水分的变异系数突然变大,随着雨季的延续变异系数逐渐变小,到雨季末期达到最小,其含水量在4-8月之间达到最大,其变化幅度总体与降雨量呈正比.
英文摘要	Dynamic changes of soil moisture in the karst areas desertification ecological rehabilitation and reconstruction process is of great significance. According to the slope at different seasons and through the 24 samples, the spatial distribution of soil moisture and variability are analyzed. The results showed that: surface soil moisture has a constant trend of decrease along the slope, and the moderate variation on the slope, but the difference of different slope is little. Soil moisture is higher at the slope bottom and top. Compared with the slope land, the seasonal impact on slope bottom soil is relatively smaller. The seasonal impact on the karst soil relatively large in the slope position and soil moisture coefficient of variation suddenly become larger in the rainy season, then became smaller with the continuation of the rainy season and reached the minimum at the late rainy season. The water content reached the largest value during April to August and the overall magnitude of changes with the rainfall submissions are proportional.
中文关键词	岩溶石漠化地区 ; 土壤水分 ; 动态变化 ; 变异系数
英文关键词	karst regions soil moisture dynamic changes coefficient of variation
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:3509576
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224209
作者单位	1.贵州大学,资源与环境工程学院, 贵阳, 贵州 550003, 中国; 2.贵州科学院, 贵阳, 贵州 550025, 中国
推荐引用方式 GB/T 7714	范新瑞,苏维词,鄢贵权,等. 黔中典型岩溶石漠化地区土壤水分动态变化规律研究[J],2009,16(2):156-159.
APA	范新瑞,苏维词,鄢贵权,&曹欢.(2009).黔中典型岩溶石漠化地区土壤水分动态变化规律研究.,16(2),156-159.
MLA	范新瑞,et al."黔中典型岩溶石漠化地区土壤水分动态变化规律研究".16.2(2009):156-159.