Litter and Soil Soluble Organic Carbon Feature of Three Vegetation Types in Wenchang, Hainan Island
The forest litter amount and soil active organic carbon properties (SOC,EOC and LFOC content) of 3 vegetation types (human erythropoietin updated forest,secondary forest,coconut grove) in coastal platform in Wenchang,Hainan Island were measured.The results were as follows:the litter volume and carbon storage of the three forest types were:coconut grove 4.53 t/hm2 and 1.51 t/hm2,secondary forest 1.76 t/hm2 and 0.65 t/hm2,human erythropoietin update secondary 1.53 t/hm2 and 0.60 t/hm2; And the two prameters in the decomposed layer (including semi-decomposed layer and fully-decomposed layer) were greater than that of the composed layer,Deepened within 1 m soil,the values of the three soils showed a downward with obvious difference.Correlation analysis showed that SOC,EOC and LFOC were positiviely related,meaning the composition and the change rof the organic cabon pool in the soils of the three vegetation types were in same rule as the soil parent material,soil type and climatic conditions were similar,with variation for different value,and forest litter quality and human factors are the key factors to carbon reserves.
国家科技期刊平台
NSTL
万方数据
维普
