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	Comparison of diurnal dynamics in evaporation rate between bare soil and moss-crusted soil within a revegetated desert ecosystem of northwestern China
	Zhang, Ya-Feng; Wang, Xin-Ping; Pan, Yan-Xia; Hu, Rui
刊名	JOURNAL OF EARTH SYSTEM SCIENCE
	2016-02-01
卷号	125期号:1页码:95-102
关键词	Biological soil crusts soil evaporation diurnal variation bare soil moss-crusted soil
ISSN号	0253-4126
通讯作者	Wang, Xin-Ping(zyf7759961@163.com)
英文摘要	Effects of biological soil crusts (BSCs) on soil evaporation is quite controversial in literature, being either facilitative or inhibitive, and therein few studies have actually conducted direct evaporation measurements. Continuous field measurements of soil water evaporation were conducted on two microlysimeters, i.e., one with sand soil collected from bare sand dune area and the other with moss-crusted soil collected from an area that was revegetated in 1956, from field capacity to dry, at the southeastern edge of the Tengger Desert. We mainly aimed to quantify the diurnal variations of evaporation rate from two soils, and further comparatively discuss the effects of BSCs on soil evaporation after revegetation. Results showed that in clear days with high soil water content (Day 1 and 2), the diurnal variation of soil evaporation rate followed the typical convex upward parabolic curve, reaching its peak around midday. Diurnal evaporation rate and the accumulated evaporation amount of moss-crusted soil were lower (an average of 0.90 times) than that of sand soil in this stage. However, as soil water content decreased to a moderately low level (Day 3 and 4), the diurnal evaporation rate from moss-crusted soil was pro-nouncedly higher (an average of 3.91 times) than that of sand soil, prolonging the duration of this higher evaporation rate stage; it was slightly higher in the final stage (Day 5 and 6) when soil moisture was very low. We conclude that the effects of moss crusts on soil evaporation vary with different evaporation stages, which is closely related to soil water content, and the variation and transition of evaporation rate between bare soil and moss-crusted soil are expected to be predicted by soil water content.
收录类别	SCI
WOS关键词	SAND DUNES ; MICROBIOTIC CRUSTS ; CRYPTOGAMIC CRUSTS ; NEGEV DESERT ; VEGETATION ; SHAPOTOU ; AREA ; MOISTURE ; BEHAVIOR ; WATER
WOS研究方向	Geology ; Science & Technology - Other Topics
WOS类目	Geosciences, Multidisciplinary ; Multidisciplinary Sciences
语种	英语
出版者	INDIAN ACAD SCIENCES
WOS记录号	WOS:000371447200008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557364
专题	寒区旱区环境与工程研究所
通讯作者	Wang, Xin-Ping
作者单位	Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ya-Feng,Wang, Xin-Ping,Pan, Yan-Xia,et al. Comparison of diurnal dynamics in evaporation rate between bare soil and moss-crusted soil within a revegetated desert ecosystem of northwestern China[J]. JOURNAL OF EARTH SYSTEM SCIENCE,2016,125(1):95-102.
APA	Zhang, Ya-Feng,Wang, Xin-Ping,Pan, Yan-Xia,&Hu, Rui.(2016).Comparison of diurnal dynamics in evaporation rate between bare soil and moss-crusted soil within a revegetated desert ecosystem of northwestern China.JOURNAL OF EARTH SYSTEM SCIENCE,125(1),95-102.
MLA	Zhang, Ya-Feng,et al."Comparison of diurnal dynamics in evaporation rate between bare soil and moss-crusted soil within a revegetated desert ecosystem of northwestern China".JOURNAL OF EARTH SYSTEM SCIENCE 125.1(2016):95-102.

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