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Dadhwal, V. K.
- Forest Soil Organic Carbon Pool: an Estimate and Review of Indian Studies
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Indian Forester, Vol 131, No 2 (2005), Pagination: 201-214Abstract
The Indian forest soil organic C densities for two-depth classes (top 50 cm and 1 m) were estimated using a database of published measurements with depth of soil organic carbon (SOC) containing information on location, soil type, texture, measured/estimated bulk density and forest type. The mean soil organic C density estimates for top 50 cm based on 175 observations ranged from 37.5 t/ha in tropical dry deciduous forest to 92 tha-1 in littoral and swamp forest. The mean soil organic C density estimates for top 1 m depth based on 136 observations ranged from 70 tha-1 in tropical dry deciduous forest to 162 tha-1 in montanc temperate forest. The estimated soil organic C densities were combined with remote sensing (RS)-based forcst area inventory to arrive at cstimates of soil organic C pool of major forest types of India. The total soil organic C pools in Indian forests were estimated as 4.1 and 6.8 PgC (PgC = 1015 gC) in top 50 cm and top 1 m-soil depths, respectively. The estimate is comparable to carlier Indian forest soil organic C pool estimates, which are in the range of 5.4-6.7 PgC (top 1m depth). A few Indian studics were also reviewed to dctermine the impact of various anthropogenic changes such as conversion of natural forests to plantations, deforestation, and shifting cultivation on forest soil organic C pools.- Forest Litterfall in India: a Review and an Estimate of Litterfall Carbon Flux
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Indian Forester, Vol 123, No 1 (1997), Pagination: 45-52Abstract
Using 44 published studies describing 64 and 75 measurements on total and leaf litterfall in Indian forest, respectively, average litterfall for major forest types was computed. This ranged from 8.5 to 4.3 t/ha/yr for total litterfall and 6.9 to 3.4 t/ha/yr for leaf litterfall. The mean litterfall was used along with remote sensing based forest type inventory by Forest Survey of India (1987 assessment, based on 1980-82 satellite data) to estimate aboveground total and leaf litterfall carbon flux of 188 ± 24 and 152 ± 13 Mt C/yr in forest in India.- Soil Organic Carbon Status of Indian forests
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Affiliations
1 Indian Institute of Remote Sensing, Dehradun, IN
1 Indian Institute of Remote Sensing, Dehradun, IN