DOI: 10.1016/j.foreco.2016.07.012
Scopus记录号: 2-s2.0-84978187315
论文题名: Vegetative response to water availability on the San Carlos Apache Reservation
作者: Petrakis R. ; Wu Z. ; McVay J. ; Middleton B. ; Dye D. ; Vogel J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 378 起始页码: 14
结束页码: 23
语种: 英语
英文关键词: Drought
; Grasslands
; Modified Soil Adjusted Vegetation Index II (MSAVI2)
; Pinyon-juniper woodlands
; Ponderosa pine forest
; Water availability metrics
Scopus关键词: Climate change
; Drought
; Forestry
; Image reconstruction
; Radiometers
; Remote sensing
; Satellite imagery
; Grasslands
; Pinyon-juniper woodlands
; Ponderosa pine forest
; Vegetation index
; Water availability
; Vegetation
; climate change
; community response
; coniferous forest
; drought
; evapotranspiration
; grassland
; MODIS
; precipitation (climatology)
; remote sensing
; spatiotemporal analysis
; vegetation index
; water availability
; woodland
; Arizona
; United States
; Juniperus
; Pinus edulis
英文摘要: On the San Carlos Apache Reservation in east-central Arizona, U.S.A., vegetation types such as ponderosa pine forests, pinyon-juniper woodlands, and grasslands have significant ecological, cultural, and economic value for the Tribe. This value extends beyond the tribal lands and across the Western United States. Vegetation across the Southwestern United States is susceptible to drought conditions and fluctuating water availability. Remotely sensed vegetation indices can be used to measure and monitor spatial and temporal vegetative response to fluctuating water availability conditions. We used the Moderate Resolution Imaging Spectroradiometer (MODIS)-derived Modified Soil Adjusted Vegetation Index II (MSAVI2) to measure the condition of three dominant vegetation types (ponderosa pine forest, woodland, and grassland) in response to two fluctuating environmental variables: precipitation and the Standardized Precipitation Evapotranspiration Index (SPEI). The study period covered 2002 through 2014 and focused on a region within the San Carlos Apache Reservation. We determined that grassland and woodland had a similar moderate to strong, year-round, positive relationship with precipitation as well as with summer SPEI. This suggests that these vegetation types respond negatively to drought conditions and are more susceptible to initial precipitation deficits. Ponderosa pine forest had a comparatively weaker relationship with monthly precipitation and summer SPEI, indicating that it is more buffered against short-term drought conditions. This research highlights the response of multiple, dominant vegetation types to seasonal and inter-annual water availability. This research demonstrates that multi-temporal remote sensing imagery can be an effective tool for the large scale detection of vegetation response to adverse impacts from climate change and support potential management practices such as increased monitoring and management of drought-affected areas. Different vegetation types displayed various responses to water availability, further highlighting the need for individual management plans for forest and woodland, especially considering the projected drier conditions in the Southwest U.S. and other arid or semi-arid regions around the world. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64770
Appears in Collections: 影响、适应和脆弱性
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作者单位: U.S. Geological Survey, Western Geographic Science Center, 2255 North Gemini Drive, Flagstaff, AZ, United States
Recommended Citation:
Petrakis R.,Wu Z.,McVay J.,et al. Vegetative response to water availability on the San Carlos Apache Reservation[J]. Forest Ecology and Management,2016-01-01,378