DOI: 10.3390/rs12030406
论文题名: The MODIS global vegetation fractional cover product 2001-2018: Characteristics of vegetation fractional cover in grasslands and savanna woodlands
作者: Hill M.J. ; Guerschman J.P.
刊名: Remote Sensing
ISSN: 20724292
出版年: 2020
卷: 12, 期: 3 语种: 英语
英文关键词: Bare soil
; Ecoregion
; Fractional cover
; Grassland
; Livestock
; Production systems
; Savanna
; Trend
; Vegetation
Scopus关键词: Agriculture
; Economics
; Land use
; Bare soils
; Ecoregions
; Fractional cover
; Grassland
; Livestock
; Production system
; Savanna
; Trend
; Vegetation
英文摘要: Vegetation Fractional Cover (VFC) is an important global indicator of land cover change, land use practice and landscape, and ecosystem function. In this study, we present the Global Vegetation Fractional Cover Product (GVFCP) and explore the levels and trends in VFC across World Grassland Type (WGT) Ecoregions considering variation associated with Global Livestock Production Systems (GLPS). Long-term average levels and trends in fractional cover of photosynthetic vegetation (FPV), non-photosynthetic vegetation (FNPV), and bare soil (FBS) are mapped, and variation among GLPS types within WGT Divisions and Ecoregions is explored. Analysis also focused on the savanna-woodland WGT Formations. Many WGT Divisions showed wide variation in long-term average VFC and trends in VFC across GLPS types. Results showed large areas of many ecoregions experiencing significant positive and negative trends in VFC. East Africa, Patagonia, and the Mitchell Grasslands of Australia exhibited large areas of negative trends in FNPV and positive trends FBS. These trends may reflect interactions between extended drought, heavy livestock utilization, expanded agriculture, and other land use changes. Compared to previous studies, explicit measurement of FNPV revealed interesting additional information about vegetation cover and trends in many ecoregions. The Australian and Global products are available via the GEOGLAM RAPP (Group on Earth Observations Global Agricultural Monitoring Rangeland and Pasture Productivity) website, and the scientific community is encouraged to utilize the data and contribute to improved validation. © 2020 by the authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159539
Appears in Collections: 气候变化与战略
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作者单位: CSIRO Land and Water, Black Mountain, ACT 2601, Australia; Department of Earth System Science and Policy, University of North Dakota, Grand Forks, ND 58202, United States
Recommended Citation:
Hill M.J.,Guerschman J.P.. The MODIS global vegetation fractional cover product 2001-2018: Characteristics of vegetation fractional cover in grasslands and savanna woodlands[J]. Remote Sensing,2020-01-01,12(3)