| Spatial distribution of biological soil crusts on the slope of the Chinese Loess Plateau based on canonical correspondence analysis | |
| Bu, CF; Zhang, P; Wang, C; Yang, YS; Shao, HB; Wu, SF; Bu, CF (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China. buchongfeng@163.com; shaohongbochu@126.com; wsfjs@163.com | |
| 发表期刊 | CATENA
 |
| ISSN | 0341-8162 |
| 2016-02-01 | |
| 卷号 | 137页码:373-381 |
| 关键词 | Wind Water Erosion Crisscross Region Slope Scale Soil Type Vegetation Community Topography Soil Moisture |
| DOI | 10.1016/j.catena.2015.10.016 |
| 产权排序 | [Bu, Chong-feng; Zhang, Peng; Wang, Chun] Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Bu, Chong-feng; Yang, Yong-sheng] Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Bu, Chong-feng; Yang, Yong-sheng] Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China; [Wu, Shu-fang] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China; [Shao, Hong-bo] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Shao, Hong-bo] Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Peoples R China |
| 作者部门 | 海岸带生物学与生物资源利用所重点实验室 |
| 英文摘要 | Biological soil crusts (BSCs) are a living ground cover widely distributed in arid and semi-arid regions, and providing important ecological functions in arid and semi-arid ecosystems. An understanding of the spatial distribution patterns of BSCs is foundational for the scientific management of this resource. In this study, a typical slope was selected from a small watershed, Liudaogou, in the wind water erosion crisscross region of the Loess Plateau in northwest China. The spatial distribution characteristics of BSCs and associated influencing factors were investigated at the slope scale via a comprehensive survey and statistical analysis using GS + and CANOCO statistical software. The results showed that the distribution of BSCs was clearly spatially differentiated, with the majority of BSCs widely and continuously distributed in sandy areas at a mean coverage of greater than 30%. Sporadic distribution of BSCs was observed in loess areas mainly at the edges of slopes with a mean coverage of generally less than 20%. The thickness and shear strength of the BSCs did not present significant spatial variation, indicating that these two BSC indices were primarily associated with the age and developmental stage of the BSC which was relatively constant throughout the study area. A canonical correspondence analysis revealed that the spatial distribution of BSCs was closely correlated with soil type, vegetation, surface soil moisture content, slope and aspect. Among these factors, soil type had the most significant impact on BSC distribution and explained 20% of the spatial variation of BSCs. The vegetation community type and topographic wetness index were the secondary influencing factors, and sagebrush (Artemisia desertorum) shrubland and aspen (Populus simonii) woodland provided the most ideal growth environments for BSCs. Other factors such as slope, aspect and solar radiation also affected BSC distribution to a certain degree. Overall, BSCs were clearly selective for topography, soil type and vegetation community and preferentially grew in humid areas with psammophytic plant communities. (C) 2015 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China(41541008 ; Foundation of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau(K318009902-1405) ; Chinese Universities Scientific Fund(2014YQ006) ; 41071192) |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | DESERT |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| WOS记录号 | WOS:000367635800037 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/9298 |
| 专题 | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| 通讯作者 | Bu, CF (reprint author), Xinong Rd 26, Yangling 712100, Shaanxi Provinc, Peoples R China. buchongfeng@163.com; shaohongbochu@126.com; wsfjs@163.com |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P 2.Chinese Acad Sci, Inst Soil & Water Conservat 3.Minist Water Resources 4.Northwest A&F Univ, Coll Water Resources & Architectural Engn 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res 6.Jiangsu Acad Agr Sci, Inst Agrobiotechnol |
| 推荐引用方式 GB/T 7714 | Bu, CF,Zhang, P,Wang, C,et al. Spatial distribution of biological soil crusts on the slope of the Chinese Loess Plateau based on canonical correspondence analysis[J]. CATENA,2016,137:373-381. |
| APA | Bu, CF.,Zhang, P.,Wang, C.,Yang, YS.,Shao, HB.,...&wsfjs@163.com.(2016).Spatial distribution of biological soil crusts on the slope of the Chinese Loess Plateau based on canonical correspondence analysis.CATENA,137,373-381. |
| MLA | Bu, CF,et al."Spatial distribution of biological soil crusts on the slope of the Chinese Loess Plateau based on canonical correspondence analysis".CATENA 137(2016):373-381. |
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