Vegetation differentiation characteristics and control mechanisms in the Altay region based on topographic gradients
文献类型：期刊论文
| 作者 | Wang, Baixue7; Cheng, Weiming4,5,6,7; Xu, Hua6,7; Wang, Ruibo3,7; Song, Keyu6,7; Bao, Anming2; Shi, Qingdong1 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 160页码:111838 |
| 关键词 | Geo-informatic Tupu Topographic gradient Topographic composite index Vegetation distribution Control mechanism Altay region |
| DOI | 10.1016/j.ecolind.2024.111838 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Among numerous vegetation studies, there are few studies on the elevation gradient distribution control mechanism and horizontal law of small-scale vegetation. In the same climate zone, topography is one of the most important factors affecting vegetation pattern. Here, we used the geo-informatic Tupu theory to construct topographic gradient-vegetation distribution information Tupu (TG-VDI Tupu) to display the topographical differentiation characteristics of vegetation. Moreover, an improved evaluation of topographical differentiation characteristics of vegetation was proposed based on topographic gradients, and the topographic composite index (TCI) was constructed to analyse the topographic variation in vegetation distribution. Meanwhile, the dominant factors and limiting factors affecting vegetation distribution under different topographic gradients were determined through statistical analysis. Combined with field surveys, Gaofen-1 (GF-1) satellite images were used to extract vegetation types, and the solar radiation value (SRV), topographic wetness index (TWI) and topographic variables were extracted from DEM data. The results indicate that TG-VDI Tupu can visually display topographic differentiation characteristics of vegetation on an elevation gradient. Elevation controls the horizontal distribution of vegetation on a small scale by changing ecological factors. At the same elevation, slope affects vegetation distribution by changing the SRV and TWI, while aspect changes the TWI. Coniferous forest is separated along a slope gradient and is more abundant on steep slopes. The percentage of broadleaf forest is negatively correlated with SRV and positively correlated with TWI, and the proportion is higher on the leeward slope facing north. The distribution of shrubs is more abundant on more xeric aspects and on steeper and more xeric slope configurations. In alpine areas above 2800 m, the abundance of vegetation types declines. This decline may be related to the weak solar radiation and widespread glacial landforms, exposed rocks and strong weathering. The methodology in our study can be applied to other regions and is expected to provide useful information for ecological conservation policy making. |
| WOS关键词 | SOLAR-RADIATION ; SOIL PROPERTIES ; ENVIRONMENTAL-FACTORS ; SPATIAL-DISTRIBUTION ; RIVER-BASIN ; LAND-USE ; LANDSCAPE ; FOREST ; PLANT ; MOISTURE |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS记录号 | WOS:001226624900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205213]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Cheng, Weiming; Wang, Ruibo |
| 作者单位 | 1.Xinjiang Univ, Coll Ecol & Environm, Urumqi 830017, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China 3.Xinjiang Univ, Coll Geog & Remote Sensing Sci, Urumqi 830046, Peoples R China 4.Collaborat Innovat Ctr South China Sea Studies, Nanjing 210093, Jiangsu, Peoples R China 5.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Baixue,Cheng, Weiming,Xu, Hua,et al. Vegetation differentiation characteristics and control mechanisms in the Altay region based on topographic gradients[J]. ECOLOGICAL INDICATORS,2024,160:111838. |
| APA | Wang, Baixue.,Cheng, Weiming.,Xu, Hua.,Wang, Ruibo.,Song, Keyu.,...&Shi, Qingdong.(2024).Vegetation differentiation characteristics and control mechanisms in the Altay region based on topographic gradients.ECOLOGICAL INDICATORS,160,111838. |
| MLA | Wang, Baixue,et al."Vegetation differentiation characteristics and control mechanisms in the Altay region based on topographic gradients".ECOLOGICAL INDICATORS 160(2024):111838. |
入库方式： OAI收割
来源：地理科学与资源研究所
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