KMS Institute of soil and water conservation Chinese Academy of Sciences
| Biological soil crusts decrease erodibility by modifying inherent soil properties on the Loess Plateau, China | |
| Gao, Liqian1,2; Bowker, Matthew A.3; Xu, Mingxiang1,2; Sun, Hui4; Tuo, Dengfeng4; Zhao, Yunge1,2; Zhao, YG (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China. | |
| 文章类型 | Article |
| 2017 | |
| 发表期刊 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| ISSN | 0038-0717 |
| 通讯作者邮箱 | zyunge@ms.iswc.ac.cn |
| 卷号 | 105页码:49-58 |
| 摘要 | Soil erosion and subsequent land degradation contributed to societal collapse in the past and are a leading cause of desertification in arid and semi-arid regions. Biological soil crusts (biocrusts) are ubiquitous living covers in many arid and semiarid ecosystems that have an important role in soil stabilization and erosion prevention. The "Grain for Green" ecological project improved vegetation recovery, and led to an extensive development of biocrusts across the Loess Plateau region in China, one of the most eroded regions in the world. The expansion of biocrusts was instrumental in reducing soil loss in a very large, severely eroded region of the Loess Plateau. We hypothesized that development of biocrusts would change soil organic matter (SOM) and soil particle size distribution (PSD), thereby reducing soil erodibility and soil loss. We sampled 56 sites that were passively revegetated grasslands on former croplands and 3 bare soil sites in the Loess Plateau region, and used the erosion productivity impact calculator (EPIC) model combined with simulated rainfall to test our assumption. The PSD and SOM content varied significantly among biocrust types and successional stages. The SOM content was 4 times higher in moss dominated biocrust and 1.5 times greater in cyanobacterially dominated biocrust than bare soil. More fine-particles (< 0.01 mm) and fewer coarse-particles (0.05-0.25 mm) were present in biocrusts than in bare soil. Modeled soil erodibility decreased significantly as biocrust biomass increased, mainly due to increase in SOM content, reducing the predicted soil loss by up to 90%. Finally, the prevalence of moss biocrust was a better predictor of soil erodibility than cyanobacteria in the Loess Plateau region. We conclude that biocrusts were a decisive factor for the initial reduction of soil erosion, which must be considered explicitly in models that aim to predict and manage soil loss on the Loess Plateau. (C) 2016 Elsevier Ltd. All rights reserved. |
| 关键词 | Moss Cyanobacteria Soil Erosion k Value Soil Organic Matter Soil Texture |
| 学科领域 | Agriculture |
| DOI | 10.1016/j.soilbio.2016.11.009 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 出版地 | OXFORD |
| 语种 | 英语 |
| WOS记录号 | WOS:000392788600008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 项目资助者 | National Natural Science Foundation of China [41571268, 41271298]; "Western Light" Project of the Chinese Academy of Sciences ; National Natural Science Foundation of China [41571268, 41271298]; "Western Light" Project of the Chinese Academy of Sciences |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/8044 |
| 专题 | 水保所科研产出--SCI_2017--SCI |
| 通讯作者 | Zhao, YG (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess, Yangling 712100, Shaanxi, Peoples R China 2.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China 3.No Arizona Univ, Sch Forestry, 200 East Pine Knoll Dr, Flagstaff, AZ 86011 USA 4.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Liqian,Bowker, Matthew A.,Xu, Mingxiang,et al. Biological soil crusts decrease erodibility by modifying inherent soil properties on the Loess Plateau, China[J]. SOIL BIOLOGY & BIOCHEMISTRY,2017,105:49-58. |
| APA | Gao, Liqian.,Bowker, Matthew A..,Xu, Mingxiang.,Sun, Hui.,Tuo, Dengfeng.,...&Zhao, YG .(2017).Biological soil crusts decrease erodibility by modifying inherent soil properties on the Loess Plateau, China.SOIL BIOLOGY & BIOCHEMISTRY,105,49-58. |
| MLA | Gao, Liqian,et al."Biological soil crusts decrease erodibility by modifying inherent soil properties on the Loess Plateau, China".SOIL BIOLOGY & BIOCHEMISTRY 105(2017):49-58. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 174---215(2018.4.2).（779KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论