Carbon, nitrogen and phosphorus contents and their ecological stoichiometry in litters and soils on meadow of Wugong Mountain, Jiangxi, China at different altitudes.

doi:10.13287/j.1001-9332.201805.007

Abstract

Abstract: Carbon (C), nitrogen (N) and phosphorus (P) contents and ecological stoichiometry and their correlations of litter and soil along 1500-1900 m on Wugong Mountain meadow were studied. The results showed that litter C, N and P contents varied in the range of 397.5-458.24, 11.59-17.12, 1.05-2.19 mg·g^-1, respectively. Litter C content decreased, and the contents of N and P decreased first and then increased with the increases of altitude. Soil C, N and P contents varied in the range of 51.64-80.01, 3.30-4.77, 0.44-1.09 mg·g^-1, respectively. Soil C, N and P contents first increased and then decreased with the increases of altitude. However, soil P varied much less along the altitude gradient. Litter C:N, C:P and N:P varied in the range of 24.73-40.36, 203.65-463.08, 7.16-13.80, respectively, and first increased but then decreased with altitude. Soil C:N, C:P and N:P were 14.95-16.95, 56.87-162.52, 3.69-10.58, respectively. Soil C:N changed little with altitude. Soil C:P and N:P first increased and then decreased with increa-sing altitude, with the maximum presented at 1600-1700 m. Changes in soil C, N and P contents differed between litter and soil on Wugong Mountain meadow. The mean C, N and P contents as well as C:N, C:P and N:P in litter were higher than those in soil.

LIU Qian, WANG Shu-li, DENG Bang-liang, ZHENG Xiang, HUANG Li-jun, GUO Xiao-min, ZHANG Xue-ling, ZHANG Ling. Carbon, nitrogen and phosphorus contents and their ecological stoichiometry in litters and soils on meadow of Wugong Mountain, Jiangxi, China at different altitudes.[J]. Chinese Journal of Applied Ecology, 2018, 29(5): 1535-1541.

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