Carbon stock and density of soils under chir pine ( Sargent) forests of Solan forest division, Himachal Pradesh Pinus roxburghii (original) (raw)

Abstract

Soil carbon status of chir pine forests was studied in the chir pine working circle of two forest ranges (Solan and Dharampur) of Solan Forest Division, in Himachal Pradesh, at an altitudinal gradient from 600-2260 m amsl. A total of 33 forest compartments were selected for the study. The soil samples were collected from humus layer, 0-20 cm, 20-40 cm, 40-100 cm soil depth. The results showed that the soil pH increased while electrical conductivity decreased with increasing depth. The soil organic carbon (%) decreased with increasing soil depth, while soil bulk density showed the reverse trend with increasing soil depth. The soil carbon stock ranged from 18.87 to 317.31 t in the humus layer, from 127.87 to 2069.10 t at a depth of 0 to 20 cm, from 118.37 to 1675.80 t at 20 to 40 cm depth and from 207.35 to 3441.20 t at 40 to 100 cm soil depth. The soil carbon density ranged from 6.73 to 9.62 t ha in the humus layer, from 33.73 to 55.80 t ha at a depth of 0 to 20 cm, from 30.52 to 50....

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