Remote estimation of gross primary productivity in crops using MODIS 250m data

Yi Peng, Anatoly A Gitelson, Toshihiro Sakamoto

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

In this study, a simple model was developed to estimate crop gross primary productivity (GPP) using a product of chlorophyll-related vegetation index, retrieved from MODIS 250. m data, and potential photosynthetically active radiation (PAR). Potential PAR is incident photosynthetically active radiation under a condition of minimal atmospheric aerosol loading. This model was proposed for GPP estimation based entirely on satellite data, and it was tested in maize and soybean, which are contrasting crop types different in leaf structures and canopy architectures, under different crop managements and climatic conditions. The model using MODIS 250. m data, which brings high temporal resolution and moderate spatial resolution, was capable of estimating GPP accurately in both irrigated and rainfed croplands in three Nebraska AmeriFlux sites during growing seasons 2001 through 2008. Among the MODIS-250. m retrieved indices tested, enhanced vegetation index (EVI) and wide dynamic range vegetation index (WDRVI) were the most accurate for GPP estimation with coefficients of variation below 20% in maize and 25% in soybean. It was shown that the developed model was able to accurately detect GPP variation in crops where total chlorophyll content is closely tied to seasonal dynamic of GPP.

Original languageEnglish (US)
Pages (from-to)186-196
Number of pages11
JournalRemote Sensing of Environment
Volume128
DOIs
StatePublished - Jan 21 2013

Fingerprint

moderate resolution imaging spectroradiometer
MODIS
Crops
primary productivity
Productivity
productivity
crop
crops
photosynthetically active radiation
vegetation index
Chlorophyll
Radiation
soybean
chlorophyll
maize
soybeans
canopy architecture
Atmospheric aerosols
corn
crop management

Keywords

  • Gross primary productivity
  • MODIS 250m data
  • Potential photosynthetically active radiation
  • Vegetation index

ASJC Scopus subject areas

  • Soil Science
  • Geology
  • Computers in Earth Sciences

Cite this

Remote estimation of gross primary productivity in crops using MODIS 250m data. / Peng, Yi; Gitelson, Anatoly A; Sakamoto, Toshihiro.

In: Remote Sensing of Environment, Vol. 128, 21.01.2013, p. 186-196.

Research output: Contribution to journalArticle

Peng, Yi ; Gitelson, Anatoly A ; Sakamoto, Toshihiro. / Remote estimation of gross primary productivity in crops using MODIS 250m data. In: Remote Sensing of Environment. 2013 ; Vol. 128. pp. 186-196.
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