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The Combined Effects of Moss-Dominated Biocrusts and Vegetation on Erosion and Soil Moisture and Implications for Disturbance on the Loess Plateau, China
Bu, Chongfeng1,2; Wu, Shufang3; Han, Fengpeng1,2; Yang, Yongsheng2; Meng, Jie1
2015-05-20
Source PublicationPLOS ONE
Volume10Issue:5
AbstractBiological soil crusts (BSCs, or biocrusts) have important positive ecological functions such as erosion control and soil fertility improvement, and they may also have negative effects on soil moisture in some cases. Simultaneous discussions of the two-sided impacts of BSCs are key to the rational use of this resource. This study focused on the contribution of BSCs while combining with specific types of vegetation to erosion reduction and their effects on soil moisture, and it addressed the feasibility of removal or raking disturbance. Twelve plots measuring 4 m x 2 m and six treatments (two plots for each) were established on a 15 degrees slope in a small watershed in the Loess Plateau using BSCs, bare land (as a control, BL), Stipa bungeana Trin. (STBU), Caragana korshinskii Kom. (CAKO), STBU planted with BSCs (STBU+BSCs) and CAKO planted with BSCs (CAKO+BSCs). The runoff, soil loss and soil moisture to a depth of 3 m were measured throughout the rainy season (from June to September) of 2010. The results showed that BSCs significantly reduced runoff by 37.3% and soil loss by 81.0% and increased infiltration by 12.4% in comparison with BL. However, when combined with STBU or CAKO, BSCs only made negligible contributions to erosion control (a runoff reduction of 7.4% and 5.7% and a soil loss reduction of 0.7% and 0.3%). Generally, the soil moisture of the vegetation plots was lower in the upper layer than that of the BL plots, although when accompanied with a higher amount of infiltration, this soil moisture consumption phenomenon was much clearer when combining vegetation with BSCs. Because of the trivial contributions from BSCs to erosion control and the remaining exacerbated consumption of soil water, moderate disturbance by BSCs should be considered in plots with adequate vegetation cover to improve soil moisture levels without a significant erosion increase, which was implied to be necessary and feasible.
SubtypeArticle
WOS HeadingsScience & Technology
WOS Subject ExtendedScience & Technology - Other Topics
WOS KeywordBIOLOGICAL SOIL ; SEMIARID ECOSYSTEMS ; MICROBIOTIC CRUSTS ; VASCULAR PLANTS ; SANDY SOIL ; DESERT ; INFILTRATION ; RUNOFF ; GERMINATION ; GRASSLAND
Indexed BySCI
Language英语
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000354921400112
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67888
Collection中国科学院地理科学与资源研究所
Corresponding AuthorBu, Chongfeng
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
3.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Bu, Chongfeng,Wu, Shufang,Han, Fengpeng,et al. The Combined Effects of Moss-Dominated Biocrusts and Vegetation on Erosion and Soil Moisture and Implications for Disturbance on the Loess Plateau, China[J]. PLOS ONE,2015,10(5).
APA Bu, Chongfeng,Wu, Shufang,Han, Fengpeng,Yang, Yongsheng,&Meng, Jie.(2015).The Combined Effects of Moss-Dominated Biocrusts and Vegetation on Erosion and Soil Moisture and Implications for Disturbance on the Loess Plateau, China.PLOS ONE,10(5).
MLA Bu, Chongfeng,et al."The Combined Effects of Moss-Dominated Biocrusts and Vegetation on Erosion and Soil Moisture and Implications for Disturbance on the Loess Plateau, China".PLOS ONE 10.5(2015).
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