Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/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
![]() |
ISSN | 2072-4292 |
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. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。