干旱区生态环境知识资源中心(Arid): 中国干旱半干旱地区土壤凝结水研究综述

Arid

	中国干旱半干旱地区土壤凝结水研究综述
其他题名	An Overview on Soil Condensate in Arid and Semiarid Regions in China
	郭占荣; 刘建辉
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2005
卷号	22 期号:4 页码:576-580
中文摘要	中国北方干旱半干旱地区的气象条件有利于土壤凝结水的形成。从20世纪60年代以来，相继开展了一系列土壤凝结水的实验与研究。土壤凝结水特指地面温度和表层地温达到露点时，大气水汽和土壤孔隙水汽由汽态水凝结而成的液态水。近地气温、地温、相对湿度、下垫面性质、地下水埋深等因素都会影响凝结水形成的速度、深度和数量。土壤凝结水的水汽来源主要是近地表大气和包气带孔隙中的水汽。土壤凝结水是土壤水和地下水水分平衡不可忽缺的因素。土壤凝结水也是干旱半干旱地区的主要水源之一，具有重要的生态与环境意义。
英文摘要	The micro-meteorological conditions are advantageous for forming soil condensate in arid and semiarid regions in north China. Since the 1960＇s, some scientists have successively carried out many experiments and studies on soil condensate. Soil condensate means the liquid water condensed from air vapor and soil pore vapor on ground surface and in topsoil when surface temperature and topsoil temperature are decreased to dewpoint, and it is a component of soil water. The formation speed, depth and volume of soil condensate are closely related to many factors, such as the air temperature near ground, ground temperature, relative humidity, features of underlaying surface, and groundwater depth. Soil condensate is an important component in water equilibrium of soil water and groundwater, one of the main water sources, and of significance in conserving ecology and environment in arid and semiarid regions. Many achievements in the experiments and studies on soil condensate, including the aspects of formation mechanism, affecting factors, condensation volume, measurement methods of soil condensate, have been achieved in China. However, there are still some problems needing to be considered and resolved. In this paper, the experiments and studies on soil condensate in China are reviewed from the aspects of the factors affecting the formation of soil condensate, vapor sources, vertical distribution and volume, ecological environmental effects and measurement methods of soil condensate, etc.
中文关键词	土壤凝结水 ; 成因 ; 凝结量 ; 干旱半干旱地区
英文关键词	soil condensate formation cause volume of condensed water arid and semiarid regions.
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:2187369
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206268
作者单位	郭占荣, 厦门大学海洋与环境学院, 厦门, 福建 361005, 中国.; 刘建辉, 厦门大学海洋与环境学院, 厦门, 福建 361005, 中国.
推荐引用方式 GB/T 7714	郭占荣,刘建辉. 中国干旱半干旱地区土壤凝结水研究综述[J],2005,22(4):576-580.
APA	郭占荣,&刘建辉.(2005).中国干旱半干旱地区土壤凝结水研究综述.干旱区研究,22(4),576-580.
MLA	郭占荣,et al."中国干旱半干旱地区土壤凝结水研究综述".干旱区研究 22.4(2005):576-580.