干旱区生态环境知识资源中心(Arid): Assessment of Rangeland Degradation in New Mexico Using Time Series Segmentation and Residual Trend Analysis (TSS-RESTREND)

Arid

DOI	10.3390/rs13091618
	Assessment of Rangeland Degradation in New Mexico Using Time Series Segmentation and Residual Trend Analysis (TSS-RESTREND)
	Gedefaw, Melakeneh G.; Geli, Hatim M. E.; Abera, Temesgen Alemayehu
通讯作者	Geli, HME (corresponding author), New Mexico State Univ, New Mexico Water Resources Res Inst, Las Cruces, NM 88003 USA. ; Geli, HME (corresponding author), New Mexico State Univ, Dept Anim & Range Sci, Las Cruces, NM 88003 USA.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2021
卷号	13 期号:9
英文摘要	Rangelands provide significant socioeconomic and environmental benefits to humans. However, climate variability and anthropogenic drivers can negatively impact rangeland productivity. The main goal of this study was to investigate structural and productivity changes in rangeland ecosystems in New Mexico (NM), in the southwestern United States of America during the 1984-2015 period. This goal was achieved by applying the time series segmented residual trend analysis (TSS-RESTREND) method, using datasets of the normalized difference vegetation index (NDVI) from the Global Inventory Modeling and Mapping Studies and precipitation from Parameter elevation Regressions on Independent Slopes Model (PRISM), and developing an assessment framework. The results indicated that about 17.6% and 12.8% of NM experienced a decrease and an increase in productivity, respectively. More than half of the state (55.6%) had insignificant change productivity, 10.8% was classified as indeterminant, and 3.2% was considered as agriculture. A decrease in productivity was observed in 2.2%, 4.5%, and 1.7% of NM's grassland, shrubland, and ever green forest land cover classes, respectively. Significant decrease in productivity was observed in the northeastern and southeastern quadrants of NM while significant increase was observed in northwestern, southwestern, and a small portion of the southeastern quadrants. The timing of detected breakpoints coincided with some of NM's drought events as indicated by the self-calibrated Palmar Drought Severity Index as their number increased since 2000s following a similar increase in drought severity. Some breakpoints were concurrent with some fire events. The combination of these two types of disturbances can partly explain the emergence of breakpoints with degradation in productivity. Using the breakpoint assessment framework developed in this study, the observed degradation based on the TSS-RESTREND showed only 55% agreement with the Rangeland Productivity Monitoring Service (RPMS) data. There was an agreement between the TSS-RESTREND and RPMS on the occurrence of significant degradation in productivity over the grasslands and shrublands within the Arizona/NM Tablelands and in the Chihuahua Desert ecoregions, respectively. This assessment of NM's vegetation productivity is critical to support the decision-making process for rangeland management; address challenges related to the sustainability of forage supply and livestock production; conserve the biodiversity of rangelands ecosystems; and increase their resilience. Future analysis should consider the effects of rising temperatures and drought on rangeland degradation and productivity.
英文关键词	NDVI precipitation drought breakpoints and timeseries analysis ecosystem structural change BFAST
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000650743200001
WOS关键词	RAIN-USE-EFFICIENCY ; LAND DEGRADATION ; VEGETATION DYNAMICS ; PHENOLOGICAL CHANGE ; AFRICAN SAHEL ; CLIMATE ; DROUGHT ; DESERTIFICATION ; PRODUCTIVITY ; GREENNESS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
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/2XILL650/351522
作者单位	[Gedefaw, Melakeneh G.] New Mexico State Univ, Water Sci & Management Program, Las Cruces, NM 88003 USA; [Geli, Hatim M. E.] New Mexico State Univ, New Mexico Water Resources Res Inst, Las Cruces, NM 88003 USA; [Geli, Hatim M. E.] New Mexico State Univ, Dept Anim & Range Sci, Las Cruces, NM 88003 USA; [Abera, Temesgen Alemayehu] Univ Helsinki, Dept Geosci & Geog, POB 68, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Gedefaw, Melakeneh G.,Geli, Hatim M. E.,Abera, Temesgen Alemayehu. Assessment of Rangeland Degradation in New Mexico Using Time Series Segmentation and Residual Trend Analysis (TSS-RESTREND)[J]. New Mexico State University,2021,13(9).
APA	Gedefaw, Melakeneh G.,Geli, Hatim M. E.,&Abera, Temesgen Alemayehu.(2021).Assessment of Rangeland Degradation in New Mexico Using Time Series Segmentation and Residual Trend Analysis (TSS-RESTREND).REMOTE SENSING,13(9).
MLA	Gedefaw, Melakeneh G.,et al."Assessment of Rangeland Degradation in New Mexico Using Time Series Segmentation and Residual Trend Analysis (TSS-RESTREND)".REMOTE SENSING 13.9(2021).