QQ客服 官方微博 反馈留言

	Evapotranspiration of a tropical rain forest in Xishuangbanna, southwest China
	Li Z. H. ; Zhang Y. P. ; Wang S. S. ; Yuan G. F. ; Yang Y. ; Cao M.
	2010
关键词	tropical rain forest evapotranspiration eddy covariance measurement water balance temperate deciduous forest energy-balance closure flux measurements boreal forest fog-drip water evaporation carbon heat seasonality
英文摘要	The eddy covariance flux measurements from 2003 to 2006 at a tropical rain forest site in Xishuangbanna, southwest China, were used to study the ecosystem evapotranspiration (ET). During the four study years, the mean annual precipitation and air temperature were slightly lower than their long-term averages (1322 vs 1487 mm and 20.1 vs 21.7 degrees C, respectively). Mean annual ET in the four study years was estimated at 1029 mm, accounted for 78% of the corresponding annual precipitation. Mean daily ecosystem ET was 2.6 mm day(-1) during the dry season from November to April and was 3.1 mm day(-1) during the rainy season from May to October. The ET diurnal variations in the cool-dry season (from November to February), the hot-dry season (March and April) and the rainy season had similar maximum values, although the soil water content, leaf area index (LAI) and climate conditions differed greatly. ET was mainly controlled by soil water availability in the hot-dry season, by LAI in the early rainy season (May and June) and by atmospheric conditions in the mid-to-late rainy season (from July to October) and the cool-dry season. The total ET was substantially higher than the corresponding precipitation in the dry season. The extra amount of water evapotranspirated in the dry season was mainly due to the depletion of soil water stored in the previous rainy season. Fog deposition during the dry season also played a role in providing water for ET. Our results indicated the importance of interannual interactions of water balance in the seasonal distribution of ecosystem ET at this site. Copyright (C) 2010 John Wiley & Sons, Ltd.
出处	Hydrological Processes
卷	24
期	17
页	2405-2416
收录类别	SCI
语种	英语
ISSN号	0885-6087
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23575]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Z. H.,Zhang Y. P.,Wang S. S.,et al. Evapotranspiration of a tropical rain forest in Xishuangbanna, southwest China. 2010.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。