Arid
DOI10.1002/hyp.13766
Effects of sand-mulch thickness on soil evaporation during the freeze-thaw period
Chen, Junfeng1; Xie, Xue1; Zheng, Xiuqing1; Xue, Jing1; Miao, Chunyan2; Du, Qi3; Xu, Yongxin4
通讯作者Zheng, Xiuqing
来源期刊HYDROLOGICAL PROCESSES
ISSN0885-6087
EISSN1099-1085
出版年2020
卷号34期号:13页码:2830-2842
英文摘要Control of evaporation from seasonally frozen soil is an important method for alleviating water shortages in arid and semi-arid areas. To investigate the inhibition of soil evaporation by sand and the major factors that influence soil evaporation, a series of field experiments with five sand-mulch thicknesses (0 cm, bare soil [BS], 1 cm [T1], 2 cm [T2], 3 cm [T3] and 4 cm [T4], with an average diameter of 1 mm) were conducted during the freeze-thaw period in Northern China. Soil evaporation characteristics in the three freeze-thaw stages were revealed and the major factors influencing soil evaporation were analysed using grey correlation analysis. The results showed that the cumulative soil evaporation decreased with increasing sand-mulch thickness during the freeze-thaw period, and only small differences in soil evaporation were observed between the T3 and T4 treatments. The reduction in soil evaporation under different sand-mulch thicknesses was 19.2-62.6% in the unstable freezing stage (P1), 2.0-28.3% in the stable freezing stage (P2) and 4.8-20.4% in the thawing stage (P3). In P1, solar radiation was a major factor influencing soil evaporation in all treatments and vapour pressure was a major factor in the sand-mulch treatments, and the influence of relative humidity on soil evaporation decreased in the T4 treatment. During the coldest P2, solar radiation was lowest so that relative humidity and wind speed became the more dominant influence factors on soil evaporation in all treatments, and surface soil water content was a major factor in the sand-mulch treatments. In P3, average air temperature and solar radiation were major factor influencing soil evaporation in all treatments and vapour pressure was a major factor in the BS and T1 treatments, whereas water surface evaporation was the major factor in the T2, T3 and T4 treatments. The results suggest that the addition of sand mulch in agricultural fields may be a beneficial practice to reduce water stress in arid and semi-arid areas.
英文关键词freeze-thaw period grey correlation analysis major factors sand-mulch thickness soil evaporation
类型Article
语种英语
国家Peoples R China ; South Africa
收录类别SCI-E
WOS记录号WOS:000526600300001
WOS关键词WATER-USE EFFICIENCY ; SEMIARID LOESS PLATEAU ; INNER-MONGOLIA ; GRAVEL MULCH ; GRAIN-SIZE ; TEMPERATURE ; YIELD ; IRRIGATION ; REGION ; ACCUMULATION
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/314693
作者单位1.Taiyuan Univ Technol, Coll Water Resources & Engn, Taiyuan 030024, Peoples R China;
2.Taiyuan Univ Technol, Coll Environm Sci & Engn, Taiyuan, Peoples R China;
3.Bur Hydrol & Water Resources Survey Shanxi Prov, Taigu Water Balance Expt Field, Taigu, Peoples R China;
4.Univ Western Cape, Dept Earth Sci, Cape Town, South Africa
推荐引用方式
GB/T 7714
Chen, Junfeng,Xie, Xue,Zheng, Xiuqing,et al. Effects of sand-mulch thickness on soil evaporation during the freeze-thaw period[J],2020,34(13):2830-2842.
APA Chen, Junfeng.,Xie, Xue.,Zheng, Xiuqing.,Xue, Jing.,Miao, Chunyan.,...&Xu, Yongxin.(2020).Effects of sand-mulch thickness on soil evaporation during the freeze-thaw period.HYDROLOGICAL PROCESSES,34(13),2830-2842.
MLA Chen, Junfeng,et al."Effects of sand-mulch thickness on soil evaporation during the freeze-thaw period".HYDROLOGICAL PROCESSES 34.13(2020):2830-2842.
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