干旱区生态环境知识资源中心(Arid): 沙漠人工植被区土壤蒸发测定

Arid

	沙漠人工植被区土壤蒸发测定
其他题名	Soil Evaporation in Artificially Re-vegetated Desert Area
	张志山1 ; 王新平2 ; 李新荣2 ; 张景光 2
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2005
卷号	25 期号:2 页码:243-248
中文摘要	在2003年生长季,应用自制的微型蒸渗仪(Micro-Lysimeter)、大型称重式蒸渗仪(Lysimeter)和TDR对比测定沙漠油蒿( Artemisia ordosica )和柠条( Caragana korshinskii )人工植被区与裸沙土壤蒸发,结果表明:在沙漠人工植被区由于植被比较稀疏,土壤蒸发不受植株的遮阴的影响,但不同样地的蒸发量是有差异的,而样地和位置间的互作不显著.为提高蒸发测定精度,建议微型蒸渗仪勤于换土,尤其是在大降水发生之后;将横插式TDR探头改为竖插式能探测到小降水后的蒸发量.在沙漠区有很大比例的蒸发发生在紧接降水之后.以微型蒸渗仪的测定结果为主,结合大型称重式蒸渗仪的测定结果推算出整个试验期间的裸沙、油蒿和柠条样地的蒸发量为111.6 mm、93.8 mm和99.3 mm,油蒿和柠条样地的蒸发量分别占同期蒸散量的45.1%和43.6%;油蒿和柠条样地均以8月份日蒸发量0.93 mm·d-1和1.10 mm·d-1最高,5月份日蒸发量0.30 mm·d-1和0.28 mm·d-1最低.
英文摘要	The experiment based on Micro-Lysimeter combining with Lysimeter and TDR aims to determine the evaporation in Artemisia ordosica and Caragana korshinskii re-vegetated desert area during growth season of 2003 and in bare desert. The results showed that soil evaporation has no relation with overshadow of plant due to thin vegetation. Evaporation amount between A. ordosica and C. korshinskii vegetation is different, but the interaction between locations and vegetations is not significant. As precision is concerned, we suggest that soil in Micro-Lysimeter should be frequently exchanged and the probe of TDR should be inserted vertically instead of horizontally. Most evaporation occurs after precipitation in desert area. Based on the results of Micro-Lysimeter combing with the result of Lysimeter, the evaporations in bare sand and A-ordosica and C. korshinskii vegetated areas are calculated, they are 111. 6 mm and 93. 8 mm and 99. 3 mm in experimental periods, respectively. The evaporation of A. ordosica and C. korshinskii vegetated areas are 45. 1% and 43. 6% of the evapotranspiration. Monthly, the maximum evaporation of A. ordosica and C. korshinskii vegetation is 0. 93 mm·d~(-1) and 1. 10 mm·d~(-1) in August respectively, the minimum evapora-tion is 0. 30 mm·d~(-1) and 0. 28 mm·d~(-1) in May respectively.
中文关键词	沙漠人工植被区 ; 微型蒸渗仪 ; 大型称重式蒸渗仪 ; 蒸发
英文关键词	TDR artificially re-vegetated desert area Micro-Lysimeter Lysimeter TDR evaporation
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:1953326
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206970
作者单位	1.中国科学院寒区旱区环境与工程研究所,沙坡头沙漠试验研究站, 广州, 甘肃 730000, 中国; 2.中国科学院寒区旱区环境与工程研究所,沙坡头沙漠试验研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	张志山,王新平,李新荣,等. 沙漠人工植被区土壤蒸发测定[J]. 中国科学院西北生态环境资源研究院,2005,25(2):243-248.
APA	张志山,王新平,李新荣,&张景光.(2005).沙漠人工植被区土壤蒸发测定.中国沙漠,25(2),243-248.
MLA	张志山,et al."沙漠人工植被区土壤蒸发测定".中国沙漠 25.2(2005):243-248.