Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2015.08.009 |
Identification of the main factors determining landscape metrics in semi-arid agro-pastoral ecotone | |
Peng, Yu; Mi, Kai; Qing, Fengting; Xue, Dayuan | |
通讯作者 | Peng, Yu |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2016 |
卷号 | 124页码:249-256 |
英文摘要 | Landscape patterns in agro-pastoral ecotones are influenced by natural factors and human activities. However, the main factors that influence landscape metrics of agro-pastoral ecotones have not been fully elucidated. To further understand conditions influencing landscape formation, we conducted a series analysis to explore the relationship between ecological factors (annual average precipitation, annual average temperature, NDVI, altitude, aspect, slope, curvature, land use, and human disturbance) and landscape metrics pattern in the range of 100-5000 m spatial extent, within an agro-pastoral ecotone in Inner Mongolia, China. Using principal component analysis and the detrended canonical correspondence analysis from 43 landscape metrics, we successfully identified several key factors that determine the landscape metrics values. Agriculture and livestock grazing land use induce the landscape configuration to become homogeneous and simple. Nevertheless, our results show that the influences of human activities on landscape metrics are surprisingly not strong. Rather the natural ecological factors, in particular temperature, precipitation and altitude, had the greatest influence on landscape metrics values. This study provides a theoretical case for the scaling effects and develops techniques for identifying the key ecological factors influencing on landscape metrics, so as to improve landscape management decisions in semi-arid regions and other ecotones. (C) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Landscape metrics Correlation analysis Ecological factors Human activities Ecotone |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000364245200029 |
WOS关键词 | SPECIES-DIVERSITY ; SCALING RELATIONS ; PATTERN INDEXES ; LAND-USE ; FOREST ; BIODIVERSITY ; DISTURBANCE ; INDICATORS ; PLANTS ; COVER |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194045 |
作者单位 | Minzu Univ China, Coll Life & Environm Sci, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Peng, Yu,Mi, Kai,Qing, Fengting,et al. Identification of the main factors determining landscape metrics in semi-arid agro-pastoral ecotone[J],2016,124:249-256. |
APA | Peng, Yu,Mi, Kai,Qing, Fengting,&Xue, Dayuan.(2016).Identification of the main factors determining landscape metrics in semi-arid agro-pastoral ecotone.JOURNAL OF ARID ENVIRONMENTS,124,249-256. |
MLA | Peng, Yu,et al."Identification of the main factors determining landscape metrics in semi-arid agro-pastoral ecotone".JOURNAL OF ARID ENVIRONMENTS 124(2016):249-256. |
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