Arid
DOI10.3390/rs5010327
Vegetation Index Differencing for Broad-Scale Assessment of Productivity Under Prolonged Drought and Sequential High Rainfall Conditions
Browning, Dawn M.1; Steele, Caitriana M.2
通讯作者Browning, Dawn M.
来源期刊REMOTE SENSING
ISSN2072-4292
出版年2013
卷号5期号:1页码:327-341
英文摘要

Spatially-explicit depictions of plant productivity over large areas are critical to monitoring landscapes in highly heterogeneous arid ecosystems. Applying radiometric change detection techniques we sought to determine whether: (1) differences between pre- and post-growing season spectral vegetation index values effectively identify areas of significant change in vegetation; and (2) areas of significant change coincide with altered ecological states. We differenced NDVI values, standardized difference values to Z-scores to identify areas of significant increase and decrease in NDVI, and examined the ecological states associated with these areas. The vegetation index differencing method and translation of growing season NDVI to Z-scores permit examination of change over large areas and can be applied by non-experts. This method identified areas with potential for vegetation/ecological state transition and serves to guide field reconnaissance efforts that may ultimately inform land management decisions for millions of acres of federal lands.


英文关键词change detection rangeland monitoring Landsat ecological state mapping state-and-transition models phenology
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000315402400017
WOS关键词TRANSITION MODELS ; THRESHOLDS ; STRATEGY ; HEALTH
WOS类目Remote Sensing
WOS研究方向Remote Sensing
来源机构New Mexico State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/179704
作者单位1.ARS, USDA, Las Cruces, NM 88003 USA;
2.New Mexico State Univ, Las Cruces, NM 88003 USA
推荐引用方式
GB/T 7714
Browning, Dawn M.,Steele, Caitriana M.. Vegetation Index Differencing for Broad-Scale Assessment of Productivity Under Prolonged Drought and Sequential High Rainfall Conditions[J]. New Mexico State University,2013,5(1):327-341.
APA Browning, Dawn M.,&Steele, Caitriana M..(2013).Vegetation Index Differencing for Broad-Scale Assessment of Productivity Under Prolonged Drought and Sequential High Rainfall Conditions.REMOTE SENSING,5(1),327-341.
MLA Browning, Dawn M.,et al."Vegetation Index Differencing for Broad-Scale Assessment of Productivity Under Prolonged Drought and Sequential High Rainfall Conditions".REMOTE SENSING 5.1(2013):327-341.
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