Arid
DOI10.1007/s10661-013-3435-5
Vegetation response to hydrologic and geomorphic factors in an arid region of the Baja California Peninsula
Rodriguez-Moreno, Victor M.1,2; Bullock, Stephen H.3
通讯作者Rodriguez-Moreno, Victor M.
来源期刊ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN0167-6369
EISSN1573-2959
出版年2014
卷号186期号:2页码:1009-1021
英文摘要

Remotely sensed imageries were used to analyze the response of desert vegetation to physiographic factors and accumulated precipitation in drier and wetter years within a region of > 16,500 km(2) sampled with 5,000 random pixels of 30 m. Vegetation development was indexed by the annual maximum values for greenness (SAVI) and canopy water content (NDII). Precipitation was interpolated from the 0.25A degrees grid of the Tropical Rainfall Measurement Mission satellite-based estimates, showing a regional average of similar to 55 mm in the wetter year. The vegetation indices were only weakly related to total precipitation, often in a negative sense. Terrain factors that most often affected the vegetation indices, in multiple regression models, were Topographic Wetness Index, elevation, and slope gradient; these often had different signs for SAVI and for NDII. Models for NDII on intrusive igneous rocks gave better results than on extrusive igneous rocks. The strongest patterns in vegetation development were the contrast among Pacific coast, Cordillera, and Gulf coast subregions and the generally stronger results for NDII than SAVI.


英文关键词Remote sensing Topographic Wetness Index SAVI NDII TRMM Substrate-vegetation relations
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000329647300030
WOS关键词REMOTE-SENSING DATA ; DESERT ECOSYSTEMS ; SUBSURFACE FLOW ; SOIL-MOISTURE ; WATER-CONTENT ; PRECIPITATION ; PULSES ; HETEROGENEITY ; VARIABILITY ; VALIDATION
WOS类目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/2XILL650/181914
作者单位1.Ctr Invest Cient & Educ Super Ensenada, BC CICESE, Div Ciencias Tierra, Ensenada 22860, Baja California, Mexico;
2.INIFAP, Campo Expt Pabellon, Pabellon De Arteaga, Aguascalientes, Mexico;
3.Ctr Invest Cient & Educ Super Ensenada, BC CICESE, Div Biol Expt & Aplicada, Dept Biol Conservac, Ensenada 22860, Baja California, Mexico
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Rodriguez-Moreno, Victor M.,Bullock, Stephen H.. Vegetation response to hydrologic and geomorphic factors in an arid region of the Baja California Peninsula[J],2014,186(2):1009-1021.
APA Rodriguez-Moreno, Victor M.,&Bullock, Stephen H..(2014).Vegetation response to hydrologic and geomorphic factors in an arid region of the Baja California Peninsula.ENVIRONMENTAL MONITORING AND ASSESSMENT,186(2),1009-1021.
MLA Rodriguez-Moreno, Victor M.,et al."Vegetation response to hydrologic and geomorphic factors in an arid region of the Baja California Peninsula".ENVIRONMENTAL MONITORING AND ASSESSMENT 186.2(2014):1009-1021.
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