The Effects of Land Use and Landform Transformation on the Vertical Distribution of Soil Nitrogen in Small Catchments
文献类型：期刊论文
| 作者 | Yu, Yunlong1,2,3; Wang, Shanshan3; Qiu, Junping2,3 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 16期号:17页码:14 |
| 关键词 | catchment hydrology foot slope reshaping farmland creation agriculture N management |
| DOI | 10.3390/su16177590 |
| 通讯作者 | Qiu, Junping(jpqiu@whu.edu.cn) |
| 英文摘要 | The diversity of land use and consolidation is fundamental to ensuring sustainable development. However, the impact of diverse land uses and consolidation on the well-known shallow accumulation pattern of soil nitrogen (N) remains unclear. This existence of this knowledge gap severely constrains the sustainable production of newly created farmland. Therefore, the objective of this study was to investigate the effects of land use and gully land transformation on the vertical distribution of soil N in agricultural and nature catchments. Methodologically, soil nitrate (NO3-), ammonium (NH4+) and total nitrogen (TN) were measured to a depth of 100 cm in the hillslope forestland, grassland and gully cropland areas of the treated (gully landform reshaping) and untreated (natural gully) catchments on the Chinese Loess Plateau (CLP). The results indicated that soil N in the hillslope forestland and grassland exhibited a shallow accumulation pattern, while the vertical distribution of soil N in the gully cropland areas displayed a homogeneous, random or deep accumulation pattern. In the hillslope areas, vegetable cover was the dominant factor controlling N variation in the topsoil. In contrast, in the gully areas, the interaction of landform transformation and hydrology was the primary factor influencing the distribution of soil N. In the treated catchment, soil NO3- exhibited a significant deep accumulation pattern in the newly created farmland through gully landform reshaping. In the untreated catchment, soil NH4+ showed a significant deep accumulation pattern in the undisturbed natural gully. This study provides valuable insights into how land use and gully landform transformation affect the soil N profile. This information is crucial for the sustainable development and scientific management of valley agriculture at the catchment scale. |
| WOS关键词 | ORGANIC-CARBON ; LOESS PLATEAU ; PATTERNS ; EROSION ; NITRATE ; STOCKS ; FERTILIZERS ; PHOSPHORUS ; FARMLAND ; POSITION |
| 资助项目 | Open-end funds of the State Key Laboratory of Loess and Quaternary Geology[SKLLQG2026] ; Research Startup Fund of Hangzhou Dianzi University[KYS265624173] ; Basic Research Expenses for Provincial Colleges and Universities-Special Project for Young Teachers' Research and Innovation (General Project)[KYS268224002] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001311588000001 |
| 出版者 | MDPI |
| 资助机构 | Open-end funds of the State Key Laboratory of Loess and Quaternary Geology ; Research Startup Fund of Hangzhou Dianzi University ; Basic Research Expenses for Provincial Colleges and Universities-Special Project for Young Teachers' Research and Innovation (General Project) |
| 源URL | [http://ir.ieecas.cn/handle/361006/17769]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） 地球环境研究所_生态环境研究室 |
| 通讯作者 | Qiu, Junping |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Hangzhou Dianzi Univ, Chinese Acad Sci & Educ Evaluat, Hangzhou 310018, Peoples R China 3.Hangzhou Dianzi Univ, Acad Data Sci & Informetr, Hangzhou 310018, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yunlong,Wang, Shanshan,Qiu, Junping. The Effects of Land Use and Landform Transformation on the Vertical Distribution of Soil Nitrogen in Small Catchments[J]. SUSTAINABILITY,2024,16(17):14. |
| APA | Yu, Yunlong,Wang, Shanshan,&Qiu, Junping.(2024).The Effects of Land Use and Landform Transformation on the Vertical Distribution of Soil Nitrogen in Small Catchments.SUSTAINABILITY,16(17),14. |
| MLA | Yu, Yunlong,et al."The Effects of Land Use and Landform Transformation on the Vertical Distribution of Soil Nitrogen in Small Catchments".SUSTAINABILITY 16.17(2024):14. |
入库方式： OAI收割
来源：地球环境研究所
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