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- Title
Assessment of Aboveground Phytomass in Temperate Forests of Kashmir Valley, J&K, India.
- Authors
SINGH, SARNAM; PATIL, PRASHANT; DADHWAL, V. K.; Banday, J. R.; PANT, D. N.
- Abstract
The above ground phytomass (AGP) has been assessed for plants >3 cm dia. based on the clustered samples in temperate forests of the Kashmir Valley. Land use/land cover, with emphasis on forest cover type and density, were mapped using high resolution merged data within MODIS SR pixel of 250 x 250 m for an area weighted phytomass assessment. AGP varied from 5.89 Mg ha¹ to 242.53 Mg ha¹, 37.68 Mg ha¹ to 499.53 Mg ha¹, 42.82 to 402.42 and 94.14 to 229.68 Mg ha 1 in mixed temperate broad leaved, Abies pindrow Royle (Fir), Pinus wallichiana A.B. Jack (Blue Pine) and Cedrus deodara (D. Don) G. Don (Deodar) forests, respectively. The best regression model (r=0.853) of temperate broad leaved AGP was with IR band of November month data with linear function. The best correlation (r=0.628) in Abies pindrow Royle forest AGP was with NDVI of October month with power function. In Pinus wallichiana A.B. Jack forest the best regression model (r=0.5837) was with IRband of May month data with exponential function, and for Cedrus deodara forest the best regression model (r2=0.4221 ) was with February month red band with exponential function. The best regression models were used for satellite data-based extrapolation for phytomass mapping in Kashmir valley part. The coefficient of determination (r) between observed phytomass and predicted phytomass was 0.8534 in Broad Leaved Forest and in Abies pindrow Royle and Pinus wallichiana A.B. Jack forest, it was fairly good with 0.5238 and r=0.4938, respectively; whereas in the case of Cedrus deodara (D. Don) G. Don, it was low (r= 0.4055). The estimated AGP varied from 19.4304 to 503.932 Mg ha¹ in 250 x 250 m (MODIS SR Pixel), whereas the predicted AGP based on MODIS data modeling varied from 6.028 to 491.09 Mg ha¹. The total AGP was 6.24 Tg and total carbon was 2.99 Tg C in an area of ~9500 knf of Kashmir valley part. For regional level AGP representation, mean AGP was assessed within the grids of 5x5 km and it varied from 31.96 to 357.39 Mg and the mean forest phytomass was 210.48 Mg.
- Subjects
KASHMIR, Vale of (India); INDIA; BIOMASS; TEMPERATE rain forests; REGRESSION analysis; PINUS griffithii
- Publication
International Journal of Ecology & Environmental Sciences, 2012, Vol 38, Issue 2/3, p47
- ISSN
0377-015X
- Publication type
Article