Arid
DOI10.1007/s10661-015-4676-2
The geospatial relationship of geologic strata, geological fractures, and land use attained by a time-series aridity index in a semiarid region
Rodriguez-Moreno, Victor M.1; Kretzschmar, Thomas G.2; Saul Padilla-Ramirez, J.1
通讯作者Rodriguez-Moreno, Victor M.
来源期刊ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN0167-6369
EISSN1573-2959
出版年2015
卷号187期号:7
英文摘要

In a vast semiarid region of the Baja California Peninsula, remote sensing and GIS techniques were applied to moderate resolution images of Landsat 5 TM to explore the geospatial correlation among the grid aridity index (AI), shapefiles of geologic strata, land use, and geological fractures. A dataset of randomized sample points in a time-series of one hydrologic year along with vector file GIS delineated geologic fractures-including the area between their left/right parallel buffer lines-was used as mask analysis. MANOVA results were significant (p < 0.05) for geologic strata, land use, and basin. Overall results reveal the effects of soil texture on water retention on deeper soil horizons and the rate of vertical motion of rainwater. Despite the fact that geologic fractures underlie a large number of biotic communities, in both latitude and longitude gradients of the peninsula, no statistical significance was observed among the fractures themselves or the areas between their parallel buffer lines. One pulse rainfall event was documented by the AI grid maps enabling a robust vegetative response in early summer to an abnormal amount of rain provided by tropical storm Julio. AI grids appear to be useful for characterizing an ecosystem’s dynamism. New options are suggested for this research strategy by expanding the number of datasets and incorporating geographic exclusion areas.


英文关键词Aridity index Geospatial analyses Geologic fractures Semiarid ecosystem
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000357340500065
WOS关键词DIFFERENCE WATER INDEX ; DESERT VADOSE ZONES ; BAJA-CALIFORNIA ; RESOURCE PULSES ; VEGETATION ; RESPONSES ; DIVERSITY ; SOILS ; FIELD ; NDVI
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/2XILL650/187113
作者单位1.INIFAP, Expt Field Stn Pabellon, Pabellon De Arteaga 20660, Aguascalientes, Mexico;
2.CICESE, Dept Geol, Ensenada 22860, Baja California, Mexico
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Rodriguez-Moreno, Victor M.,Kretzschmar, Thomas G.,Saul Padilla-Ramirez, J.. The geospatial relationship of geologic strata, geological fractures, and land use attained by a time-series aridity index in a semiarid region[J],2015,187(7).
APA Rodriguez-Moreno, Victor M.,Kretzschmar, Thomas G.,&Saul Padilla-Ramirez, J..(2015).The geospatial relationship of geologic strata, geological fractures, and land use attained by a time-series aridity index in a semiarid region.ENVIRONMENTAL MONITORING AND ASSESSMENT,187(7).
MLA Rodriguez-Moreno, Victor M.,et al."The geospatial relationship of geologic strata, geological fractures, and land use attained by a time-series aridity index in a semiarid region".ENVIRONMENTAL MONITORING AND ASSESSMENT 187.7(2015).
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