干旱区生态环境知识资源中心(Arid): 黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析

Arid

	黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析
其他题名	Mechanism of Soil Water Loss in Non-growth Period of Jujube Plantation in the Loess Hilly Region
	靳姗姗 1; 汪星 1; 汪有科 1; 王智 2; 佘檀 3
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2016
卷号	30 期号:3 页码:309-316
中文摘要	针对黄土丘陵半干旱区枣林地土壤干化缺水严重的现象,利用20122015年土壤水分、温度等实测数据,分析枣林土壤水分损失的运动规律及其机理。结果表明:休眠期是枣林地土壤水分损失十分严重的阶段,0200 cm土层土壤水分损失量达到85.64~92.34mm,大约是同期降雨量的2倍。蒸发是休眠期土壤水分损失的主体。在垂直剖面上,休眠期土壤水分损失自上而下呈现减少趋势,土壤水分由地下向上运移,最终在近地表以气态水形式散失到大气。土壤气态水运动的活跃层在011cm土层间,最大深度为540 cm。受温度、相对湿度等因素的影响,土壤气态水通量随土壤深度增加而减少。
英文摘要	Based on the soil desiccation and water shortage problems in the semi-arid Loess Plateau in China, the soil water and temperature of 01 000 cm soil layers in a dense jujube plantation was measured during 2012 to 2015 in order to investigate the mechanism of soil water loss in jujube plantations in the region.The results showed that evaporation was the main reason of the soil water loss in non-growth period.The soil water moved toward the upper soil layer and eventually converted to water vapor when near the soil surface, then diffused into the atmosphere.The soil water loss in the non-growth period was serious:The amount of soil water loss in 0200 cm soil layer was up to 85.64~92.34mm,which was about twice as much as contemporaneous rainfall.Both the water loss amount and the net flux of soil water vapordecreased with the increase of soil depths in the 0540 cm soil layer.The most active layer of soil water loss was 011cm.The soil vaporous water flux which influenced by temperature and relative humidity decreased with the increase of soil depth.
中文关键词	土壤干化 ; 休眠期 ; 土壤水分损失 ; 土壤气态水
英文关键词	soil desiccation non-growth period soil water loss soil vaporous water
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:5718825
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234974
作者单位	1.中国科学院教育部水土保持与生态环境研究中心, 杨凌, 陕西 712100, 中国; 2.美国加州大学地球与环境科学系, 弗雷斯诺, 93740; 3.西北农林科技大学水利与建筑工程学院, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	靳姗姗,汪星,汪有科,等. 黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析[J]. 西北农林科技大学,2016,30(3):309-316.
APA	靳姗姗,汪星,汪有科,王智,&佘檀.(2016).黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析.水土保持学报,30(3),309-316.
MLA	靳姗姗,et al."黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析".水土保持学报 30.3(2016):309-316.