干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠公路防护林棵间土壤蒸发及蒸发量估算

Arid

	塔克拉玛干沙漠公路防护林棵间土壤蒸发及蒸发量估算
其他题名	Characterizing and Estimating Soil Evaporation in Taklimakan Desert Highway Shelterbelt
	张建国 1; 孙树国 2; 徐新文2 ; 雷加强2 ; 李生宇2
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2011
卷号	31 期号:1 页码:145-148,248
中文摘要	棵间土壤蒸发是塔克拉玛干沙漠公路防护林耗水的重要组成部分.应用Micro-Lysimeters测定了1个灌溉周期内咸水滴灌下距林木不同位置处的土壤蒸发量.分析了土壤蒸发与水面蒸发的关系,通过一维平差处理对防护林土壤蒸发量进行了估算.结果表明,塔里木沙漠公路防护林棵间土壤蒸发具有明显的季节变化特征.试验初期棵间土壤蒸发量:根基部>距根基50cm处>距根基100cm处;第5d以后,根基50cm处>根基部>距根基100cm处.林地土壤蒸发随土壤含水量的减低呈整体下降趋势.通过估算,咸水滴灌下整个防护林年土壤蒸发总量为2.63*106 m3,占总灌水量的21.43%,生长季蒸发量占全年蒸发量的92.28%
英文摘要	Soil evaporation is an important component of water consumption of the Taklimakan Desert Highway Shelterbelt. Micro-Lysimeters were used to measure soil evaporation within an irrigation cycle at different distances from the trees drip-irrigated with saline water. Meanwhile, the relationship between soil evaporation and water surface evaporation was analyzed, and soil moisture evaporation was estimated through one-dimensional adjustment processing. The results show that a spatial-temporal variation pattern of soil evaporation can be clearly identified in the shelterbelt: at the starting stage, the order of soil evaporation was tree base > 50 cm from tree base > 100 cm from tree base;and after the 5th day, the order was 50 cm from tree base > tree base > 100 cm from tree base. Soil evaporation in the shelterbelt decreased with soil water contents. The estimation shows that annual total soil evaporation of the shelterbelt will be approximately 2.63*106 m3 with drip-irrigation using saline water, accounting for 21.43% of total irrigation volume, and soil evaporation in a growing season accounts for 92.28% of annual soil evaporation. As soil evaporation results in such a high amount of water loss, appropriate measures may be required for reducing soil evaporation and improving water use efficiency
中文关键词	防护林 ; 咸水滴灌 ; 土壤蒸发 ; 蒸发量估算 ; 塔克拉玛干沙漠
英文关键词	shelterbelt drip-irrigation with saline water soil evaporation evaporation estimation the Taklimakan Desert
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:4157828
来源机构	中国科学院新疆生态与地理研究所 ; 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/2XILL650/227045
作者单位	1.西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	张建国,孙树国,徐新文,等. 塔克拉玛干沙漠公路防护林棵间土壤蒸发及蒸发量估算[J]. 中国科学院新疆生态与地理研究所, 西北农林科技大学,2011,31(1):145-148,248.
APA	张建国,孙树国,徐新文,雷加强,&李生宇.(2011).塔克拉玛干沙漠公路防护林棵间土壤蒸发及蒸发量估算.水土保持通报,31(1),145-148,248.
MLA	张建国,et al."塔克拉玛干沙漠公路防护林棵间土壤蒸发及蒸发量估算".水土保持通报 31.1(2011):145-148,248.