干旱区生态环境知识资源中心(Arid): 基于水面蒸发量的宁夏中部干旱带土壤蒸发量估算研究

Arid

	基于水面蒸发量的宁夏中部干旱带土壤蒸发量估算研究
其他题名	Using Water Surface Evaporation to Estimate Soil Surface Evaporation in Arid Regions in Central Ningxia
	马己安; 冯克鹏; 李王成; 郝璐; 李于坤; 高海燕
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2020
卷号	39 期号:10 页码:35-41
中文摘要	【目的】分段拟合宁夏中部干旱地区基于水面蒸发量和含水率的土壤蒸发量计算经验公式。【方法】采用室外土柱试验,通过分析压砂地和裸地土壤蒸发量与水面蒸发量之间的关系,依据土壤蒸发量(Eb)与水面蒸发量(E0)的比值随时间和含水率(Q)的变化趋势划分当地土壤蒸发各个阶段。【结果】根据试验数据可将裸地蒸发过程分为3个阶段,将压砂地蒸发过程分为2个阶段。裸地蒸发过程3个阶段存在2个临界值,分别为0.209 6 g/g
英文摘要	【Background】The arid regions in central Ningxia are characterized by scarce precipitation and high evaporation, with meteorological data from 1960 to 2016 showing an average annual precipitation of 183.1 mm compared to 2 000 mm of evaporation. Water-saving irrigation has been substantially improved in these regions, but water shortage is still the bottleneck restricting their agricultural production. Mulching the lands with gravels is a main cultivation method in these regions, and it is thus important to understand how the mulch alters the evaporation compared to that from bare soil, as soil evaporation is an important component in hydrological cycling and its calculation is not trivial and varies with disciplines.【Objective】 This paper aims to elucidate the relationship between soil surface evaporation and water surface evaporation, as well as the impact of soil water content in bare soil and the gravel-mulched soil on this relationship.【Method】 Outdoor experiments were conducted to analyze the relationship between soil surface evaporation and water surface evaporation using columns packed with both gravel-mulched soil and bare soil respectively. Soil evaporation was divided into different stages based on the ratio of soil surface evaporation to water surface evaporation at different times and water contents, and an empirical formula was derived to describe their relationships.【Result】 Evaporation from the bare soil could be divided into three stages while that from the gravel-mulched soil into two. The two critical ratios distinguishing the three evaporation stages in the bare soil were 0.209 6 g/g
中文关键词	压砂地 ; 土壤含水率 ; 土壤蒸发 ; 水面蒸发
英文关键词	gravel-mulch soil moisture soil evaporation water surface evaporation
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6842942
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353584
作者单位	马己安, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国.; 郝璐, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国.; 李于坤, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国.; 高海燕, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国.; 冯克鹏, 宁夏大学土木与水利工程学院;;西北退化生态系统恢复与重建教育部重点实验室;;旱区现代农业水资源高效利用教育部工程研究中心, ;;西北退化生态系统恢复与重建教育部重点实验室;;旱区现代农业水资源高效利用教育部工程研究中心, 银川;;银川;;银川, ;;;; 750021;;750021;;750021.; 李王成, 宁夏大学土木与水利工程学院;;西北退化生态系统恢复与重建教育部重点实验室;;旱区现代农业水资源高效利用教育部工程研究中心, ;;西北退化生态系统恢复与重建教育部重点实验室;;旱区现代农业水资源高效利用教育部工程研究中心, 银川;;银川;;银川, ;;;; 750021;;750021;;750021.
推荐引用方式 GB/T 7714	马己安,冯克鹏,李王成,等. 基于水面蒸发量的宁夏中部干旱带土壤蒸发量估算研究[J]. 宁夏大学,2020,39(10):35-41.
APA	马己安,冯克鹏,李王成,郝璐,李于坤,&高海燕.(2020).基于水面蒸发量的宁夏中部干旱带土壤蒸发量估算研究.灌溉排水学报,39(10),35-41.
MLA	马己安,et al."基于水面蒸发量的宁夏中部干旱带土壤蒸发量估算研究".灌溉排水学报 39.10(2020):35-41.