Evapotranspiration of rubber (Hevea brasiliensis) cultivated at two plantation sites in Southeast Asia

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	Evapotranspiration of rubber (Hevea brasiliensis) cultivated at two plantation sites in Southeast Asia
	Giambelluca, Thomas W. ; Mudd, Ryan G. ; Liu, Wen ; Ziegler, Alan D. ; Kobayashi, Nakako ; Kumagai, Tomo'omi ; Miyazawa, Yoshiyuki ; Lim, Tiva Khan ; Huang, Maoyi ; Fox, Jefferson ; Yin, Song ; Mak, Sophea Veasna ; Kasemsap, Poonpipope
刊名	WATER RESOURCES RESEARCH
	2016
卷号	52 期号:2 页码:660-679
关键词	TROPICAL RAIN-FOREST LEAF-AREA INDEX LAND-USE ENERGY-BALANCE NORTHERN THAILAND EVERGREEN FOREST CENTRAL CAMBODIA COVER CHANGES EXPANSION FLUXES
ISSN号	0043-1397
中文摘要	To investigate the effects of expanding rubber (Hevea brasiliensis) cultivation on water cycling in Mainland Southeast Asia (MSEA), evapotranspiration (ET) was measured within rubber plantations at Bueng Kan, Thailand, and Kampong Cham, Cambodia. After energy closure adjustment, mean annual rubber ET was 1211 and 1459 mm yr(-1) at the Thailand and Cambodia sites, respectively, higher than that of other tree-dominated land covers in the region, including tropical seasonal forest (812-1140 mm yr(-1)), and savanna (538-1060 mm yr(-1)). The mean proportion of net radiation used for ET by rubber (0.725) is similar to that of tropical rainforest (0.729) and much higher than that of tropical seasonal forest (0.595) and savanna (0.548). Plant area index (varies with leaf area changes), explains 88.2% and 73.1% of the variance in the ratio of latent energy flux (energy equivalent of ET) to potential latent energy flux (LE/LEpot) for midday rain-free periods at the Thailand and Cambodia sites, respectively. High annual rubber ET results from high late dry season water use, associated with rapid refoliation by this brevideciduous species, facilitated by tapping of deep soil water, and by very high wet season ET, a characteristic of deciduous trees. Spatially, mean annual rubber ET increases strongly with increasing net radiation (R-n) across the three available rubber plantation observation sites, unlike nonrubber tropical ecosystems, which reduce canopy conductance at high R-n sites. High water use by rubber raises concerns about potential effects of continued expansion of tree plantations on water and food security in MSEA.
学科主题	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
收录类别	SCI
原文出处	10.1002/2015WR017755
公开日期	2016-05-06
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/9745]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Giambelluca, Thomas W.,Mudd, Ryan G.,Liu, Wen,et al. Evapotranspiration of rubber (Hevea brasiliensis) cultivated at two plantation sites in Southeast Asia[J]. WATER RESOURCES RESEARCH,2016,52(2):660-679.
APA	Giambelluca, Thomas W..,Mudd, Ryan G..,Liu, Wen.,Ziegler, Alan D..,Kobayashi, Nakako.,...&Kasemsap, Poonpipope.(2016).Evapotranspiration of rubber (Hevea brasiliensis) cultivated at two plantation sites in Southeast Asia.WATER RESOURCES RESEARCH,52(2),660-679.
MLA	Giambelluca, Thomas W.,et al."Evapotranspiration of rubber (Hevea brasiliensis) cultivated at two plantation sites in Southeast Asia".WATER RESOURCES RESEARCH 52.2(2016):660-679.