EVALUATION OF CARBON POOL MANAGEMENT INDEX OF DIFFERENT FOREST TYPES IN LUSHAN
Carbon Pool Management Index (CPMI) is deemed to be an important parameter to describe carbon cycle in soil ecosystem,and can reflect the change of carbon pool size well.By selecting 8 sampling plot of different forest types and a contrasted bare slop plot as study objects in the Lushan scenic area,the organic carbon pool characters and management indices were analyzed systematically.Some results were obtained as the follows.First,the soil organic carbon (SOC) was mainly distributed in the soil surface layer (0-20 cm).With the increase of soil depth,the SOC contents of the soil samples under various forest types all decrease sharply.In the depth of 0-60 cm,the average SOC contents increased in the following order:Pinus massoniana forest ＜ evergreen broad-leaved forest ＜ vegetation ＜ coniferous and broad-leaved mixed forest ＜ evergreen and deciduous mixed forest ＜ Pinus taiwanensishayata forest ＜ deciduous broad-leaved forest ＜bamboo forest.Moreover,the sequence of the average ASOC contents under different forest types and contrasted bare slop is deciduous broad-leaved forest ＜ Pinus taiwanensishayata forest ＜ evergreen and deciduous broad-leaved mixed forest ＜vegetation ＜ coniferous and broad-leaved mixed forest ＜ evergreen broad-leaved forest ＜ bamboo forest ＜ Pinus massoniana forest.The percentages of SOC under different forest types increase in the following order:deciduous broad-leaved forest ＜ Pinus taiwanensishayataforest ＜ evergreen and deciduous broad-leaved mixed forest ＜ bamboo forest ＜vegetation ＜ coniferous and broad-leaved mixed forest ＜ evergreen broad-leaved forest ＜ Pinus massoniana forest.Furthermore,under various forest types,the ASOC contents are 0.24-0.57 g·kg-1,and the TOC contents are 9.72-14.74 g·kg-1.At the same time,the CPI contents are 1.63-2.48,and the A contents are 0.019-0.062,while the AI contents are 0.388-1.265.The CMPI under various forest types increase in the following order:deciduous broad-leaved forest ＜ Pinus taiwanensishayataforest ＜ evergreen and deciduous broad-leaved mixed forest ＜ vegetation ＜ coniferous and broad-leaved mixed forest ＜ evergreen broad-leaved forest ＜ bamboo forest ＜ Pinus massoniana forest.
carbon pool management indexcarbon pool activityforest typesLushan
NETL
NSTL
万方数据
维普
