Remote Sensing of Canopy Cover in Horticultural Crops

By T. Trout, Lee F. Johnson, J. Gartung. 2008

130 citations recorded by the source corpus.

Canopy cover (CC) is an important indicator of stage of growth and crop water use in horticultural crops. Remote sensing of CC has been studied in several major crops, but not in most horticultural crops. We measured CC of 11 different annual and perennial horticultural crops in various growth stages on 30 fields on the west side of California's San Joaquin Valley with a handheld multispectral digital camera. Canopy cover was compared with normalized difference vegetation index (NDVI) values calculated from Landsat 5 satellite imagery. The NDVI was highly correlated and linearlyrelated withmeasuredCCacross thewiderange of crops,canopystructures, and growth stages (R 2 = 0.95, P < 0.01) and predicted CC with mean absolute error of 0.047 up to effective full cover. These results indicate that remotely sensed NDVI may be an efficient way to monitor growth stage, and potentially irrigation water demand, of horticultural crops.

Subfields: Ecology, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/dc75e84fa9a93ab6b240ea639c6edf2876ee9cb4

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Citations in the corpus

Hourly and Daily Single and Basal Evapotranspiration Crop Coefficients as a Function of Growing Degree Days, Days After Emergence, Leaf Area Index, Fractional Green Canopy Cover, and Plant Phenology for Soybean (2013, background): “These types of generalized relationships would allow weather-based irrigation management to be based on simple canopy measurements or possibly based on remotely sensed vegetation indices (Trout et al., 2008).”