| Topographic controls on vegetation index in a hilly landscape: a case study in the Jiaodong Peninsula, eastern China | |
Wang, Yetang1,2; Hou, Xiyong3 ; Wang, Maojian1; Wu, Li3; Ying, Lanlan3; Feng, Yinyin1; Wang, YT (reprint author), Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 73000, Peoples R China. wangyetang@163.com
| |
| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
 |
| ISSN | 1866-6280 |
| 2013-09-01 | |
| 卷号 | 70期号:2页码:625-634 |
| 关键词 | Topography Spatial Variation Temporal Variation Ndvi |
| 产权排序 | [Wang, Yetang; Wang, Maojian; Feng, Yinyin] Shandong Marine Fisheries Res Inst, Shandong Prov Key Lab Marine Ecol Restorat, Yantai 264006, Peoples R China; [Wang, Yetang] Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 73000, Peoples R China; [Hou, Xiyong; Wu, Li; Ying, Lanlan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 英文摘要 | This study examined topographic influence on spatial and temporal variability in the normalized difference vegetation index (NDVI) derived from the Satellite Pour l'Observation de la Terre-Vegetation at the regional and landscape scales in the Jiaodong Peninsula. The generalized additive models were used to quantify the spatial variation of NDVI attributable to local terrain and topographically related variables including altitude, exposure to incoming solar radiation, topographic wetness index, distance to the nearest stream and distance from the coast. NDVI distribution shows significant dependence on topography. The variables explained 38.3 % of variance in NDVI at the peninsula, and 30-45.3 % of variance in NDVI at the woodland, cropland, and grassland landscapes. At the Jiaodong Peninsula scale, NDVI is influenced primarily by distance from the coast. However, topographic wetness index has the most explanatory power for NDVI at the woodland, cropland, and grassland landscapes. Through a statistical nonparametric correlation analysis (Spearman's r), the study indicates that spatial distribution of NDVI changes during the period 1998-2009 and future change trend of persistence determined by Hurst exponent is closely associated with topography and topography-based attribution. These results highlight the importance of topographic changes at landscape and regional scales as an important control factor on NDVI patterns.; This study examined topographic influence on spatial and temporal variability in the normalized difference vegetation index (NDVI) derived from the Satellite Pour l'Observation de la Terre-Vegetation at the regional and landscape scales in the Jiaodong Peninsula. The generalized additive models were used to quantify the spatial variation of NDVI attributable to local terrain and topographically related variables including altitude, exposure to incoming solar radiation, topographic wetness index, distance to the nearest stream and distance from the coast. NDVI distribution shows significant dependence on topography. The variables explained 38.3 % of variance in NDVI at the peninsula, and 30-45.3 % of variance in NDVI at the woodland, cropland, and grassland landscapes. At the Jiaodong Peninsula scale, NDVI is influenced primarily by distance from the coast. However, topographic wetness index has the most explanatory power for NDVI at the woodland, cropland, and grassland landscapes. Through a statistical nonparametric correlation analysis (Spearman's r), the study indicates that spatial distribution of NDVI changes during the period 1998-2009 and future change trend of persistence determined by Hurst exponent is closely associated with topography and topography-based attribution. These results highlight the importance of topographic changes at landscape and regional scales as an important control factor on NDVI patterns. |
| 文章类型 | Article |
| 资助机构 | Scientific Research Encouragement Foundation for Outstanding Young and Middle Scientist of Shandong Province [BS2010HZ018]; Public Science and Technology Research Funds Projects of Ocean [201205001]; National Natural Science Foundation of China [40801016]; Knowledge Innovation Program of the Chinese Academy of Sciences [kzcx2-yw-224]; Taishan Scholar Position [TS200651036] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | GENERALIZED ADDITIVE-MODELS ; ENVIRONMENTAL GRADIENTS ; FOREST COMMUNITIES ; SPECIES RICHNESS ; BURN SEVERITY ; WATER-CONTENT ; LAND-USE ; PATTERNS ; VARIABILITY ; ECOSYSTEM |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS记录号 | WOS:000323737300014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/7002 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| 通讯作者 | Wang, YT (reprint author), Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 73000, Peoples R China. wangyetang@163.com |
| 作者单位 | 1.Shandong Marine Fisheries Res Inst, Shandong Prov Key Lab Marine Ecol Restorat, Yantai 264006, Peoples R China 2.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 73000, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yetang,Hou, Xiyong,Wang, Maojian,et al. Topographic controls on vegetation index in a hilly landscape: a case study in the Jiaodong Peninsula, eastern China[J]. ENVIRONMENTAL EARTH SCIENCES,2013,70(2):625-634. |
| APA | Wang, Yetang.,Hou, Xiyong.,Wang, Maojian.,Wu, Li.,Ying, Lanlan.,...&Wang, YT .(2013).Topographic controls on vegetation index in a hilly landscape: a case study in the Jiaodong Peninsula, eastern China.ENVIRONMENTAL EARTH SCIENCES,70(2),625-634. |
| MLA | Wang, Yetang,et al."Topographic controls on vegetation index in a hilly landscape: a case study in the Jiaodong Peninsula, eastern China".ENVIRONMENTAL EARTH SCIENCES 70.2(2013):625-634. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Topographic controls（680KB） | 开放获取 | CC BY-NC-SA | 浏览 下载 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论