Characteristics of timberline and treeline altitudinal distribution in Mt. Namjagbarwa and their geographical interpretation
文献类型：期刊论文
| 作者 | Mu Hao-xiang3; Han Fang3; Zhang Bai-ping2; Liang Tian1; Wang Zhi-yong3; Wang Zhe3 |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 19期号:10页码:2846-2860 |
| 关键词 | Timberline Treeline Geographical interpretation Uncertainty Influencing factors Mt Namjagbarwa |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-021-7214-4 |
| 通讯作者 | Han Fang(hanf@lreis.ac.cn) |
| 英文摘要 | Different types of vegetation patches are alternately and randomly distributed in a timberline ecotone where the upper limit is the treeline and the lower limit is the timberline. However, most studies on timberline/treeline altitudinal distributions have simplified timberline or treeline as continuous curves and disregarded the fuzziness of timberline/treeline and the randomness of different vegetation patch distributions in a timberline ecotone. To study the altitudinal distribution characteristics of timberline and treeline from the perspective of uncertainty theory, we constructed the timberline and treeline elevation cloud models in Mt. Namjagbarwa in east Himalayas. Subsequently, we established multiple linear regression models by using nine influencing factors, namely, aspect, slope, topographic relief, dryness index, average temperature in January and July, latitude, summit syndrome (represented by the vertical distance from the peak), and snow effect (represented by the nearest distance from the snow) as independent variables, and the elevations of timberline/treeline as dependent variables. Then we compared the contributions of the nine factors in timberline, treeline, and the core and peripheral areas of timberline and treeline. The results show that 1) the timberline/treeline elevation cloud model can represent the overall characteristics (especially the uncertainty) of the altitudinal distributions of the timberline/treeline well. The uncertainty of treeline's altitudinal distribution is higher than that of timberline (entropy and hyper entropy: 207.59 m and 70.36 m for treeline elevation cloud; entropy and hyper entropy: 191.17 m and 50.13 m for timberline elevation cloud). 2) The influence of climate and topography on timberline and treeline are similar. The average temperature in July has a significant negative correlation with the timberline/treeline elevation in Mt. Namjagbarwa, which is the most critical factor that affects timberline and treeline elevation, explaining the altitudinal distribution of 44.01% timberline and 46.74% treeline. However, the contributions of the nine factors in core and peripheral areas of timberline and treeline area are evidently different. |
| WOS关键词 | GROWTH ; LINE ; TEMPERATURE ; VARIABILITY ; LANDSCAPE ; SICHUAN |
| 资助项目 | National Natural Science Foundation of China[41401111] ; Natural Science Foundation of Shandong Province[ZR2021MD080] ; Natural Science Foundation of Shandong Province[ZR2014DQ017] ; Shandong Agricultural Science and Technology Fund Project[2019LY006] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000873887900008 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Shandong Agricultural Science and Technology Fund Project |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186053]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Han Fang |
| 作者单位 | 1.Shandong Univ, Ctr Yellow River Ecosyst Prod, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Shandong Univ Technol, Sch Civil & Architectural Engn, Zibo, Zibo 255000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mu Hao-xiang,Han Fang,Zhang Bai-ping,et al. Characteristics of timberline and treeline altitudinal distribution in Mt. Namjagbarwa and their geographical interpretation[J]. JOURNAL OF MOUNTAIN SCIENCE,2022,19(10):2846-2860. |
| APA | Mu Hao-xiang,Han Fang,Zhang Bai-ping,Liang Tian,Wang Zhi-yong,&Wang Zhe.(2022).Characteristics of timberline and treeline altitudinal distribution in Mt. Namjagbarwa and their geographical interpretation.JOURNAL OF MOUNTAIN SCIENCE,19(10),2846-2860. |
| MLA | Mu Hao-xiang,et al."Characteristics of timberline and treeline altitudinal distribution in Mt. Namjagbarwa and their geographical interpretation".JOURNAL OF MOUNTAIN SCIENCE 19.10(2022):2846-2860. |
入库方式： OAI收割
来源：地理科学与资源研究所
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