Effects of desertification on soil organic C and N content in sandy farmland and grassland of Inner Mongolia
文献类型：期刊论文
| 作者 | Zhao, Ha-Lin1; He, Yu-Hui1; Zho, Rui-Lian2; Su, Yong-Zhong1; Li, Yu-Qiang1; Drake, Sam3 |
| 刊名 | CATENA
 |
| 出版日期 | 2009-06-15 |
| 卷号 | 77期号:3页码:187-191 |
| 关键词 | Desertification Wind erosion Organic C Total N Farmland Grassland |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2008.12.007 |
| 通讯作者 | Zhao, Ha-Lin(zhaohalin666@hotmail.com) |
| 英文摘要 | Desertification is one of the most serious types of land degradation. A field experiment was conducted during 2002 and 2003 in Horqin Sand Land, China to investigate changes in soil C and N contents in relation to land desertification. Four primary results were derived from this work. First, land desertification characterized by wind erosion resulted in a significant decrease in soil fine particles (clay + silt) with a corresponding increase in sand content. In comparison to non-desertified land, soil fine particle content decreased by up to 89.2%, and sand content increased by up to 47.2%, in the severely desertified land. Second, the organic C and total N in soil were mainly associated with the soil fine particles, and decreased significantly with desertification development. Organic C decreased by 29.2% and total N by 31.5% in the severely desertified land compared to the non-desertified land. Third. the decrease in organic C and N content was greater in desertified grassland than in desertified farmland. Fourth, the changes in organic C and total N content had a significant positive correlation with the soil fine particle content (P<0.01) and a significant negative correlation with coarse sand content (P<0.01), indicating that land desertification by wind erosion is mediated through a loss of soil fine particles. with a resultant decrease in soil organic C and total N. (C) 2008 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | WIND EROSION ; CARBON ; PRODUCTIVITY ; STORAGE ; IMPACT ; LAND |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000265238300004 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556176 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Ha-Lin |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Peoples R China 2.Ludong Univ, Sch Life Sci, Yantai 264025, Peoples R China 3.Univ Arizona, Off Arid Lands Studies, Tucson, AZ 85719 USA |
| 推荐引用方式 GB/T 7714 | Zhao, Ha-Lin,He, Yu-Hui,Zho, Rui-Lian,et al. Effects of desertification on soil organic C and N content in sandy farmland and grassland of Inner Mongolia[J]. CATENA,2009,77(3):187-191. |
| APA | Zhao, Ha-Lin,He, Yu-Hui,Zho, Rui-Lian,Su, Yong-Zhong,Li, Yu-Qiang,&Drake, Sam.(2009).Effects of desertification on soil organic C and N content in sandy farmland and grassland of Inner Mongolia.CATENA,77(3),187-191. |
| MLA | Zhao, Ha-Lin,et al."Effects of desertification on soil organic C and N content in sandy farmland and grassland of Inner Mongolia".CATENA 77.3(2009):187-191. |
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来源：寒区旱区环境与工程研究所
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