Arid
DOI10.1007/s12040-015-0650-1
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
通讯作者Wang, Xin-Ping
来源期刊JOURNAL OF EARTH SYSTEM SCIENCE
ISSN0253-4126
EISSN0973-774X
出版年2016
卷号125期号:1页码:95-102
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.


英文关键词Biological soil crusts soil evaporation diurnal variation bare soil moss-crusted soil
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000371447200008
WOS关键词MICROBIOTIC CRUSTS ; SAND DUNES ; CRYPTOGAMIC CRUSTS ; NEGEV DESERT ; VEGETATION ; AREA ; SHAPOTOU ; MOISTURE ; BEHAVIOR ; WATER
WOS类目Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向Geology ; Science & Technology - Other Topics
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/2XILL650/194328
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]. 中国科学院西北生态环境资源研究院,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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