| The present paper intends to carry out a contrastive study about the two targetedareas’105Phyllostachys edulis standard samples with the field investigation and the officeanalysis so as to obtain the standing structure factor and the physicochemical properties ofsoil data. Carbon storage of Phyllostachys edulis ecosystem can be reached with the helpof existing models. The conclusion was reached that carbon storage effect levels areinfluenced to an extend by the variances like region, management intensity, elevation,slope, gradient etc.with the contrast and analysis by the software SPSS20. The results areshowing as following.The differences of the targeted areas include (1)105samples per unit area’s meanvegetation carbon storage is23.718t·hm-2, mean soil carbon storage is108.719t·hm-2andthe total carbon storage reaches132.438t·hm-2;(2)the Anji vegetation carbon storage is11.7%more than that of Longquan and the soil carbon storage is9.2%lower than that ofLongquan, the total carbon storage is5.7%lower than Longquan;(3) the same carbonstorage space distribution and the total carbon storage changes with the soil carbon storage;(4) Anji and Longquan bamboo forest’s stand intensity and the mean diameter at breastheight(DBH) varies significantly (P <0.01), vegetation carbon storage and carbon storagehave some differences (P <0.1) and the soil carbon storages also have significantdifference (P <0.05).The intensity differences include (1) the different level of management intensity canresult in the different carbon storage mean index varying with the whole sequence forintensive Management> moderate Management> extensive management;(2) thevegetation carbon intensity under intensive management is23.1%higher than that of underextensive management; the soil carbon storage is2.2%higher and the total carbon storageis also4.6%higher under the same condition;(3) the management intensity has lessinfluences on the standing degree, soil organic carbon and total carbon storage but asignificant one on the mean DBH and vegetation carbon storage effect;(4) through leastsignificant difference(LSD) analysis, obvious differences are founded in the mean DBH ofeach level, vegetation carbon storage varies under the intensive and extensive management,moderate and extensive management, while under the intensive and moderate management,the differences are not significant.Terrain condition differences include (1) the carbon storage of Phyllostachys edulisforest differs under different terrain conditions, but the slope aspect, position and gradienthave less influences than the elevation;(2) the elevation will render a significant influenceto the stand density, mean DBH, vegetation carbon storage and obvious influences on soilcarbon storage, but only a certain effect on the total carbon storage. Through LSD analysis,the carbon storage at different elevation varies significantly while the total carbon storagechanges in consistence with the soil carbon storage;(3) slope aspect and position affects less on Phyllostachys edulis stand structure and carbon storage. The gradient has asignificant effect on the mean DBH and carbon storage, but little significant effect on thesoil carbon storage and carbon storage;(4) exclude the elevation effect, the slope aspectand position made a significant interaction on vegetation carbon storage but not the soilcarbon storage and the total carbon storage. Other factors interaction are not significant.The factors influencing levels comparisons include:(1) excluded the study areaeffect, the management intensity has significant influences on vegetation carbon storage.management intensity and slope aspect interaction on soil carbon storage is obvious. Otherfactors and their interaction does not have significant influence;(2) the effects of eachfactor on the vegetation carbon storage to sort: Pmanagement intensity> Pslope aspect> Pelevation>Pslope position> Pgradient. the effects on soil carbon storage in order: Pgradient> Pelevation> Pslopeaspect> Pmanagement intensity> Pslope position. the effects on the total carbon storage to sort: Pgradient>Pmanagement intensity> Pelevation> Pslope position> Pslope aspect. |
