Restoration Affect Soil Organic Carbon and Nutrients in Different Particle-size Fractions
文献类型：期刊论文
| 作者 | Chen, Xiaohong; Duan, Zhenghu; Tan, Mingliang |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 27期号:3页码:561-572 |
| ISSN号 | 1085-3278 |
| 关键词 | desertified-land restoration desertification reversal distribution of soil nutrients particle-size fractions path analysis |
| DOI | 10.1002/ldr.2400 |
| 通讯作者 | Chen, Xiaohong(chenxiaohong@lzb.ac.cn) |
| 英文摘要 | Desertification is reversible and can often be prevented by adopting measures to control the causal processes. Desertification has generally decreased in most of the arid and semiarid areas of China during the last few decades because of the restoration of degraded vegetation and soil nutrients. However, little is known about the responses of soil nutrients in different particle-size fractions to the restoration process and about the importance of this response to the restoration of bulk-soil nutrients. In this study, we separated bulk-soil samples in different sieve fractions: coarse-fine sand (20-01mm), very fine sand (010-005mm) and silt+clay (<005mm) fractions. Soil organic carbon (SOC), N, P and K contents stored in the silt+clay were greater than the contents of non-protected nutrients in the coarser fractions. During the restoration of desertified land, the content and stability of bulk-soil SOC, total N and P and available N, P and K increased with increasing nutrient contents in all fractions. Topsoil nutrients stored in coarse-fine sand and very fine sand fractions were more sensitive than those stored in the silt+clay fraction to the fixation of mobile sandy lands and vegetation recovery. The changes of bulk-soil nutrients and their stability were decided by the soil nutrients associated with all particle-size fractions. Path analysis revealed that SOC and total nutrients in very fine sand and available nutrients in coarse-fine sand were the key factors driving the soil recovery. These results will help us understand soil recovery mechanisms and evaluate the degree of recovery. Copyright (c) 2015 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| WOS关键词 | CATION-EXCHANGE CAPACITY ; PASTURE MANAGEMENT ; LAND DEGRADATION ; TENGGER DESERT ; SANDY SOILS ; NORTH CHINA ; DESERTIFICATION ; NITROGEN ; MATTER ; VEGETATION |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000373949600010 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557293 |
| 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, 320 Donggang West Rd, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xiaohong,Duan, Zhenghu,Tan, Mingliang. Restoration Affect Soil Organic Carbon and Nutrients in Different Particle-size Fractions[J]. LAND DEGRADATION & DEVELOPMENT,2016,27(3):561-572. |
| APA | Chen, Xiaohong,Duan, Zhenghu,&Tan, Mingliang.(2016).Restoration Affect Soil Organic Carbon and Nutrients in Different Particle-size Fractions.LAND DEGRADATION & DEVELOPMENT,27(3),561-572. |
| MLA | Chen, Xiaohong,et al."Restoration Affect Soil Organic Carbon and Nutrients in Different Particle-size Fractions".LAND DEGRADATION & DEVELOPMENT 27.3(2016):561-572. |
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来源：寒区旱区环境与工程研究所
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