Change in the trade-off between aboveground and belowground biomass of alpine grassland: Implications for the land degradation process
文献类型：期刊论文
| 作者 | Peng Fei1,2,3; Xue Xian1; You Quangang1; Sun Jian4; Zhou Jun5 ; Wang Tao1; Tsunekawa Atsushi2,3
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| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2019 |
| 页码 | DOI:10.1002/ldr.3432 |
| 关键词 | alpine grassland biomass allocation desertification grassland degradation structural equation modelling |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.3432 |
| 产权排序 | 5 |
| 文献子类 | Article;Early Access |
| 英文摘要 | Alpine grassland on the Qinghai-Tibet Plateau has been degrading in recent decades. A better understanding of biomass trade-off (biomass allocation between aboveground [AGB] and belowground [BGB]) change with alpine grassland degradation could uncover the degradation processes and its underlying mechanisms. We surveyed the plant and soil characteristics of alpine meadow (AM) and alpine steppe (AS) at varying degradation levels on the plateau. In the AM, the AGB was only reduced when very severely degraded, but the BGB declined at any level of degradation. In the AS, the AGB showed no significant difference in the slightly, moderately, and severely degraded levels, and the AGB only significantly declined in the very severely degraded, whereas the BGB was nonsignificantly higher in the slightly degraded and gradually declined when the levels changed from slightly to very severely degraded. In the undegraded grasslands, the biomass trade-off was towards AGB and BGB in AS and AM, respectively. With degradation, the biomass trade-off shifted from AGB to BGB at the slightly degraded levels and then gradually reached zero trade-off at the very severely degraded level in the AS. In the AM, the trade-off gradually reached zero as moderately degraded progressed to very severely degraded level. The change in plant community composition and bulk density affected the biomass trade-off change independently with AM degradation, whereas only soil moisture, soil nitrogen, and soil pH interactively influenced the biomass trade-off change with AS degradation. Our results suggest different AGB and BGB change processes and mechanisms with AS and AM degradation. |
| 电子版国际标准刊号 | 1099-145X |
| 语种 | 英语 |
| WOS记录号 | WOS:000492735100001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/31292]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Peng Fei |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China; 2.Tottori Univ, Int Platform Dryland Res & Educ, Tottori 6800001, Japan; 3.Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 5.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng Fei,Xue Xian,You Quangang,et al. Change in the trade-off between aboveground and belowground biomass of alpine grassland: Implications for the land degradation process[J]. LAND DEGRADATION & DEVELOPMENT,2019:DOI:10.1002/ldr.3432. |
| APA | Peng Fei.,Xue Xian.,You Quangang.,Sun Jian.,Zhou Jun.,...&Tsunekawa Atsushi.(2019).Change in the trade-off between aboveground and belowground biomass of alpine grassland: Implications for the land degradation process.LAND DEGRADATION & DEVELOPMENT,DOI:10.1002/ldr.3432. |
| MLA | Peng Fei,et al."Change in the trade-off between aboveground and belowground biomass of alpine grassland: Implications for the land degradation process".LAND DEGRADATION & DEVELOPMENT (2019):DOI:10.1002/ldr.3432. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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