Changes in soil physical and chemical properties during reversal of desertification in Yanchi County of Ningxia Hui autonomous region, China
文献类型：期刊论文
| 作者 | Chen, Xiaohong; Duan, Zhenghu |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2009-05-01 |
| 卷号 | 57期号:5页码:975-985 |
| 关键词 | Desertification reversal Soil physical and chemical properties Yanchi County |
| ISSN号 | 0943-0105 |
| DOI | 10.1007/s00254-008-1382-1 |
| 通讯作者 | Chen, Xiaohong(chenxiaohong1125@sina.com.cn) |
| 英文摘要 | Using field surveys and laboratory analysis, soil physical and chemical properties were studied at a site exhibiting the reversal of desertification in Yanchi County of China's Ningxia Hui autonomous region. The dominant soil particle size changed from coarse-fine sand to a combination of very fine sand and silt + clay, and corresponding levels of each soil nutrient increased. The content of coarse-fine sand (2-0.1 mm) was significantly and negatively correlated with soil nutrient contents, whereas nutrient contents were significantly and positively correlated with the contents of very fine sand (0.1-0.05 mm) and silt + clay (< 0.05 mm). The increasingly fine soil texture and the nutrient enrichment both facilitated rehabilitation of desertified land. The silt + clay content contributed the most to the increasing soil nutrient contents, and thus appears to be the key factor in reversal of desertification. Soil nutrient concentrations in the bulk soil increased with increasing content of soil nutrients with different particle fractions, and there were significant positive correlations between them. The nutrients in all particle size classes jointly decided the effect of soil nutrient contents on the reversal process. Principal-components analysis (PCA) revealed that the soil quality tended to increase during the reversal process, and that nutrient factors were more significant than particle size (i.e., were the dominant factor that influenced soil quality). Available nutrients and soil organic matter (SOM) were the most important nutrient factors. Silt + clay were the most important particle factors. |
| 收录类别 | SCI |
| WOS关键词 | QUALITY ; CARBON |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000265440600002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556166 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, Xiaohong |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xiaohong,Duan, Zhenghu. Changes in soil physical and chemical properties during reversal of desertification in Yanchi County of Ningxia Hui autonomous region, China[J]. ENVIRONMENTAL GEOLOGY,2009,57(5):975-985. |
| APA | Chen, Xiaohong,&Duan, Zhenghu.(2009).Changes in soil physical and chemical properties during reversal of desertification in Yanchi County of Ningxia Hui autonomous region, China.ENVIRONMENTAL GEOLOGY,57(5),975-985. |
| MLA | Chen, Xiaohong,et al."Changes in soil physical and chemical properties during reversal of desertification in Yanchi County of Ningxia Hui autonomous region, China".ENVIRONMENTAL GEOLOGY 57.5(2009):975-985. |
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来源：寒区旱区环境与工程研究所
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