Ground based digital imagery for grassland biomass estimation
作者： L. K. Vanamburg , M. J. Trlica , R. M. Hoffer , M. A. Weltz
DOI: 10.1080/01431160500114789
关键词:
摘要: Aboveground biomass was estimated on the shortgrass prairie of eastern Colorado using ground based conventional (RGB) digital camera imagery. The accuracy and efficiency image‐based estimates were compared with clipped measurements. Field measurements aboveground obtained three grazing treatments sample dates (phenological status). Grazing did not significantly affect (p>0.10) green taken from images. However, plant phenology, images, interaction phenology images affected (p≤0.04). Analysed provided fair total (R2 = 0.55) without cactus (R2 = 0.73) when phenological status included in models. When removed models, variability explained by decline...
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C J Tucker, R L Pearson, L D Miller, SHORTGRASS PRAIRIE SPECTRAL MEASUREMENTS Photogrammetric Engineering and Remote Sensing. ,vol. 41, ,(1975)
C. J. Tucker, Resolution of grass canopy biomass classes ,(1977)
William K. Lauenroth, Jose M. Paruelo, Pablo A. Roset, Estimating aboveground plant biomass using a photographic technique. Journal of Range Management. ,vol. 53, pp. 190- 193 ,(2000) , 10.2307/4003281
Compton J. Tucker, Spectral estimation of grass canopy variables Remote Sensing of Environment. ,vol. 6, pp. 11- 26 ,(1977) , 10.1016/0034-4257(77)90016-5
Alfredo R Huete, None, A soil-adjusted vegetation index (SAVI) Remote Sensing of Environment. ,vol. 25, pp. 295- 309 ,(1988) , 10.1016/0034-4257(88)90106-X
W. R. CATCHPOLE, C. J. WHEELER, Estimating plant biomass: A review of techniques Austral Ecology. ,vol. 17, pp. 121- 131 ,(1992) , 10.1111/J.1442-9993.1992.TB00790.X
G.L Anderson, J.D Hanson, R.H Haas, Evaluating landsat thematic mapper derived vegetation indices for estimating above-ground biomass on semiarid rangelands Remote Sensing of Environment. ,vol. 45, pp. 165- 175 ,(1993) , 10.1016/0034-4257(93)90040-5
Donald F. Post, E. Scott Martin, J. R. Simanton, E. E. Sano, Use of Hand-Held Radiometers to Evaluate the Cover and Hydrologic Characteristics of Semiarid Rangelands Arid Soil Research and Rehabilitation. ,vol. 13, pp. 201- 217 ,(1999) , 10.1080/089030699263429
BK Northup, JR Brown, CD Dias, WC Skelly, B Radford, A Technique for Near-Ground Remote Sensing of Herbaceous Vegetation in Tropical Woodlands. Rangeland Journal. ,vol. 21, pp. 229- 243 ,(1999) , 10.1071/RJ9990229
Daniel G. Milchunas, William K. Lauenroth, Philip L. Chapman, Mohammad K. Kazempour, Effects of grazing, topography, and precipitation on the structure of a semiarid grassland Vegetatio. ,vol. 80, pp. 11- 23 ,(1989) , 10.1007/BF00049137