Effects of agricultural land use on soil nutrients and its variation along altitude gradients in the downstream of the Yarlung Zangbo River Basin, Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhang, Lina2; Xu, Erqi |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-12-20 |
| 卷号 | 905页码:167583 |
| 关键词 | Agricultural land use mode Soil nutrient Altitude gradient Yarlung Zangbo River Basin |
| DOI | 10.1016/j.scitotenv.2023.167583 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Agricultural development in alpine ecosystems can cause significant changes in soil nutrients. With large altitude spans, the combined effect of the two is still unclear in existing research. To answer this problem, this study took the downstream of the Yarlung Zangbo River Basin (YZRB) as the study area, and designed a comparative soil sampling scheme along the altitude gradient. We compared soil nutrient characteristics facility agricultural land (FA) and field cultivated land (FC), using grassland (GL), the main source of agriculture expansion, as a reference. A total of 44 sampling areas were designed within an altitude range of 800-3500 m to reveal the effects of agricultural land development along the altitude gradient on soil nutrients. Research found that the FA significantly improved soil nutrient levels, with most nutrient indicators higher than those of FC and GL (P < 0.05), while the above indicators of FC were only slightly higher than GL. Moreover, the effects of agricultural development decreased with soil depth, and mainly occurred within the 0-30 cm soil layer (P < 0.05). With increasing altitude, most of soil nutrients first decreased and then increased and differences in soil nutrients among different land use modes first expanded and then shrank. This may be related to differences in farmland management methods, vegetation coverage, and temperature under different altitude gradient constraints. Especially in middle-altitude areas, the FA not only breaks through the low-temperature limitations of the plateau, but also has the advantage of large-scale development, which is suggested for future agricultural intensification in the plateau. |
| WOS关键词 | ORGANIC-CARBON ; LOESS PLATEAU ; STOICHIOMETRY ; REGION ; ECOSYSTEMS ; FRACTIONS ; PATTERNS ; NITROGEN ; PROFILE ; STOCKS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001094764800001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199434]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lina,Xu, Erqi. Effects of agricultural land use on soil nutrients and its variation along altitude gradients in the downstream of the Yarlung Zangbo River Basin, Tibetan Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,905:167583. |
| APA | Zhang, Lina,&Xu, Erqi.(2023).Effects of agricultural land use on soil nutrients and its variation along altitude gradients in the downstream of the Yarlung Zangbo River Basin, Tibetan Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,905,167583. |
| MLA | Zhang, Lina,et al."Effects of agricultural land use on soil nutrients and its variation along altitude gradients in the downstream of the Yarlung Zangbo River Basin, Tibetan Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 905(2023):167583. |
入库方式： OAI收割
来源：地理科学与资源研究所
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