Multifractal dimensions of soil particle size distribution reveal the erodibility and fertility of alpine grassland soils in the Northern Tibet Plateau
文献类型：期刊论文
| 作者 | Wang, Xiangtao1,2,3; Sun, Lei1; Zhao, Ningning1; Li, Wencheng1; Wei, Xuehong1; Niu, Ben2,3 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 315期号:N/A页码:11 |
| ISSN号 | 0301-4797 |
| 关键词 | Multifractal analysis Soil erodibility Alpine grassland Fencing and grazing Northern Tibet Plateau |
| DOI | 10.1016/j.jenvman.2022.115145 |
| 英文摘要 | Climate change and human activities have seriously degraded alpine grassland, potentially affecting soil particle size distribution (PSD) and further influencing the nutrient levels and erodibility of soil. Predicting the fertility and erodibility of alpine soil using multifractal dimensions of soil PSD could be used to enhance the management and restoration of degraded alpine grasslands. In the present study, we evaluated three types of alpine grasslands: alpine meadow (AM), alpine steppe (AS), and alpine desert steppe (ADS). Fencing and grazing management measures were conducted at sites containing each grassland type. Then, we analyzed the PSDs, erodibility, and other properties of soil in the 0-20 cm soil layer. Multifractal characterization of soil PSD was calculated using the fractal scale theory. The findings showed that grassland type significantly impacted soil nutrients and the multifractal dimensions of soil PSDs, whereas management measures affected soil erodibility significantly. The proportion of finer particles decreased as follows: AM > AS > ADS. Compared to grazing, fencing enhanced clay content and reduced the proportion of coarser particles under all three grassland types. AM had higher organic carbon and nitrogen levels than AS and ADS. Multifractal dimensions were highest for AM, with ADS having higher erodibility than AM and AS. Multifractal dimensions (except for correlation dimension) also had significantly positive relationships with soil organic carbon and available nutrient content and soil erodibility, but had significantly negative correlations with soil pH, bulk density, and electrical conductivity. Thus, the multifractal dimensions of soil PSDs could be used to characterize the erodibility and fertility characteristics of soil in alpine regions, providing a reference for assessing vegetation restoration measures in the Northern Tibet Plateau. |
| WOS关键词 | LAND-USE TYPES ; LOESS PLATEAU ; SPATIAL VARIABILITY ; GRAZING EXCLUSION ; FRACTAL FEATURES ; PLANT DIVERSITY ; CARBON ; TEMPERATURE ; ESTABLISHMENT ; PRODUCTIVITY |
| 资助项目 | National Natural Science Foundation of China[41761008] ; National Natural Science Foundation of China[42161012] ; Fund Project for Central and Local Universities in 2019: Construction of First-level Discipline of Practaculture Science[2019-44] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000802717100003 |
| 资助机构 | National Natural Science Foundation of China ; Fund Project for Central and Local Universities in 2019: Construction of First-level Discipline of Practaculture Science |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/178665]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 作者单位 | 1.Xizang Agr & Anim Husb Coll, Dept Anim Sci, Linzhi 860000, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Natl Ecol Res Stn, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xiangtao,Sun, Lei,Zhao, Ningning,et al. Multifractal dimensions of soil particle size distribution reveal the erodibility and fertility of alpine grassland soils in the Northern Tibet Plateau[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,315(N/A):11. |
| APA | Wang, Xiangtao,Sun, Lei,Zhao, Ningning,Li, Wencheng,Wei, Xuehong,&Niu, Ben.(2022).Multifractal dimensions of soil particle size distribution reveal the erodibility and fertility of alpine grassland soils in the Northern Tibet Plateau.JOURNAL OF ENVIRONMENTAL MANAGEMENT,315(N/A),11. |
| MLA | Wang, Xiangtao,et al."Multifractal dimensions of soil particle size distribution reveal the erodibility and fertility of alpine grassland soils in the Northern Tibet Plateau".JOURNAL OF ENVIRONMENTAL MANAGEMENT 315.N/A(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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