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黄土丘陵枣林休眠期土壤水分损失及其剖面气态水分析
靳姗姗1; 汪 星1; 汪有科1,2; 王 智3,4; 佘 檀2
2016
Source Publication水土保持学报
Volume30Issue:3Pages:309-316
Abstract

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 2012 — 2015 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, 0 — 200cm 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 0 — 11cm 土层间,最大深度
为 540cm 。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。

Other Abstract

Based on the soil desiccation and water shortage problems in the semi - arid Loess Plateau in China ,
the soil water and temperature of 0 — 1 000cm soil layers in a dense jujube plantation was measured during
2012to 2015in 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 0 — 200cm soil layer was up to 85.64~92.34mm , which was about twice as much as contempora -
neous rainfall.Both the water loss amount and the net flux of soil water vapordecreased with the increase of soil
depths in the 0 — 540cm soil layer.The most active layer of soil water loss was 0 — 11cm.The soil vaporous water
flux which influenced by temperature and relative humidity
decreased with the increase of soil depth.

Keyword土壤干化 休眠期 土壤水分损失 土壤气态水
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8612
Collection水保所知识产出(1956---)
Affiliation1.中国科学院教育部水土保持与生态环境研究中心,陕西 杨凌 712100
2.西北农林科技大学水利与建筑工程学院, 陕西 杨凌 712100
3.美国加州大学地球与环境科学系,弗雷斯诺 93740
4.长安大学水与发展研究院,西安 710054
Recommended Citation
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]. 水土保持学报,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.
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