YIC-IR  > 海岸带信息集成与综合管理实验室
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
2013-09-01
发表期刊ENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
卷号70期号:2页码:625-634
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
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.
关键词Topography Spatial Variation Temporal Variation Ndvi
学科领域Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
项目资助者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]
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收录类别SCI
关键词[WOS]GENERALIZED ADDITIVE-MODELS ; ENVIRONMENTAL GRADIENTS ; FOREST COMMUNITIES ; SPECIES RICHNESS ; BURN SEVERITY ; WATER-CONTENT ; LAND-USE ; PATTERNS ; VARIABILITY ; ECOSYSTEM
文章类型Article
语种英语
资助项目海岸带信息集成与综合管理实验室
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
WOS记录号WOS:000323737300014
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/7002
专题海岸带信息集成与综合管理实验室
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
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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.
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