Anthropogenic shrub encroachment has accelerated the degradation of desert steppe soil over the past four decades
文献类型：期刊论文
| 作者 | Zhao, Yanan1,2; Wang, Hongmei1,4; Li, Zhigang1,4; Lin, Gang2,3; Fu, Jingying2,3; Li, Zhili1; Zhang, Zhenjie1; Jiang, Dong2,3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-10-10 |
| 卷号 | 946页码:174487 |
| 关键词 | Anthropogenic shrub encroachment Temperate desert steppe Woody plant encroachment Soil quality index Soil moisture Land degradation |
| DOI | 10.1016/j.scitotenv.2024.174487 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Anthropogenic and natural shrub encroachment have similar ecological consequences on native grassland ecosystems. In fact, there is an accelerating trend toward anthropogenic shrub encroachment, as opposed to the century-long process of natural shrub encroachment. However, the soil quality during the transition of anthropogenic shrub encroachment into grasslands remains insufficiently understood. Here, we used a soil quality assessment method that utilized three datasets and two scoring methods to evaluate changes in soil quality during the anthropogenic transition from temperate desert grassland to shrubland. Our findings demonstrated that the soil quality index decreased with increasing shrub cover, from 0.49 in the desert grassland to 0.31 in the shrubland. Our final results revealed a gradual and significant decline of 36.73 % in soil quality during the transition from desert grassland to shrubland. Reduced soil moisture levels, nutrient availability, and microbial activity characterized this decline. Nearly four decades of anthropogenic shrub encroachment have exacerbated soil drought conditions while leading to a decrease in perennial herbaceous plants and an increase in bare ground cover; these factors can explain the observed decline in soil quality. These findings emphasize the importance of considering soil moisture availability and potential thresholds when implementing revegetation strategies in arid and semiarid regions. |
| WOS关键词 | WOODY-PLANT ENCROACHMENT ; SOUTHERN NEW-MEXICO ; MINIMUM DATA SET ; STATE TRANSITIONS ; NUTRIENT LOSSES ; ENZYME-ACTIVITY ; ORGANIC-CARBON ; LAND USES ; GRASSLAND ; QUALITY |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001266916500001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206064]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Wang, Hongmei; Jiang, Dong |
| 作者单位 | 1.Ningxia Univ, Coll Forestry & Pratacuture, Yinchuan 750021, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.Minist Educ, Key Lab Restorat & Reconstruct Degraded Ecosyst No, Yinchuan 750021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yanan,Wang, Hongmei,Li, Zhigang,et al. Anthropogenic shrub encroachment has accelerated the degradation of desert steppe soil over the past four decades[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,946:174487. |
| APA | Zhao, Yanan.,Wang, Hongmei.,Li, Zhigang.,Lin, Gang.,Fu, Jingying.,...&Jiang, Dong.(2024).Anthropogenic shrub encroachment has accelerated the degradation of desert steppe soil over the past four decades.SCIENCE OF THE TOTAL ENVIRONMENT,946,174487. |
| MLA | Zhao, Yanan,et al."Anthropogenic shrub encroachment has accelerated the degradation of desert steppe soil over the past four decades".SCIENCE OF THE TOTAL ENVIRONMENT 946(2024):174487. |
入库方式： OAI收割
来源：地理科学与资源研究所
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