| In this paper, based on the (Phyllostachys pubescens) moso bamboo as the research object of Yongfeng Guanshan forestry station in Jiangxi province, it was studied that is the season and space characteristics of rhizosphere soil microbial biomass.the carbon storage allocation proportion, moso bamboo carbon storage and correlation matrix of microbial biomass and the growth and the carbon density. The results show that:1The rules of the rhizosphere soil microbial biomass reflect the same trend with different processing:winter> autumn>spring>summer.2The rules of the average of moso bamboo rhizosphere soil shows that:1)The rule of the microbial biomass C:in spring, the average yield is Special fertilize(166.07)>CK(159.44)>45%Slag fertilize(147.69)>39%Slag fertilizer (130.37);in summer, CK(142.68)is much higher than any other processing. In processing. Special fertilize(136.53)is highest than39%Slag processing (130.26)and45%Slag processing(100.39);in autumn, the average yield is39%Slag processing (190.99)> Special fertilize(178.52)>CK(171.84)>45%Slag processing(150.96);in winter, the average yield is39%(221.98)> Special fertilize(198.06)>45%Slag processing(180.41)>CK(175.38).2)The rule of the microbial biomass N:in spring, the average yield of45%Slag processing(10.78)and Special fertilize(10.78) is higher than39%Slag fertilizer (10.64)and CK(9.92);in summer, the average yield is39%Slag processing (7.67)>CK(7.29)> Special fertilizer(6.24)>45%Slag processing(4.97);in autumn, the average yield is39%Slag processing (17.29)> Special fertilizer(16.21)>45%Slag processing(15.08)>CK(13.60);in winter, the average yield is39%Slag processing (28.95)>CK(27.36)> Special fertilizer(22.58)>45%Slag processing(18.49).3The rhizosphere soil BC:BN is generally very low in autumn and winter. The biological efficient of the rhizosphere soil microbial biomass N is much higher in autumn and winter.4The studies on the moso bamboo carbon storage shows:1)The moisture content order of each organ aboveground is leaves> culm> branchs.2)Each organ carbon storage of moso bamboo has certain ratio relations. The results of the study shoe that culm carbon storage allocation proportion is relatively bigger while the branches carbon storage and leaves carbon storage smaller. The standard of bamboo sample habitat conditions and fertilizer processing show difference, but the same rule of analyzing various organ carbon storage allocation proportion for:culm> branches>leaves.3)Except the carbon storage in bamboo leaves, there are significant linear correlations between DBH and carbon storage allocation rations in different organs. The linear correlation between the bamboo culm carbon storage allocation ratio and DBH is significant, in which the carbon storage allocation ratio of bamboo culm increases with DBH. the carbon storage allocation ratio of the bamboo branchs increases with DBH decreased. Through to the various common function bamboo carbon storage allocation proportion and DBH fitting to find fitting equation coefficient of determination close to zero, account for there is no obvious linear correlation between DBH and the bamboo leaves carbon storage allocation ratio.4)The linear correlation between the bamboo culm carbon storage allocation ratio and the bamboo height is significant, the linear correlation between the bamboo leaves carbon storage allocation ratio and the bamboo height fitted the worst, determination coefficient is almost zero. The carbon storage allocation ratio of bamboo culm increases with the bamboo height, the carbon storage allocation ratio of bamboo branches and increases with the bamboo height decreased. The bamboo leaves carbon storage allocation ratio datas are scattered, there is not exist linear correlation between them.5)Bamboo colm carbon storage, branch carbon storage, the carbon storage aboveground and bamboo height, DBH are very significant positive correction while leaves carbon storage wite diameter at breast height is only positive. In addition, the carbon storage aboveground and culm carbon storage are very significant positive correlation with branches, and positive with leaves carbon storage.6)Fertilization can promote bamboo carbon fixed. The rules with different processing is45%Slag fertilizer (53.74t-hm-2)>Special fertilization(50.24t·hm-2)>39%Slag fertilization(35.01t·hm-2)>CK(27.80t·hm-2).5Through the correlation among the rhizosphere soil microbial biomass and the growth and the carbon storage of each organ aboveground, the results show that:1)In spring, the rhizosphere soil microbial biomass and carbon nitrogen ratio with bamboo height is the significant negative correlation. In summer, the microbial biomass N and DBH is significant negative collection while carbon nitrogen ratio and bamboo height negative correlation. In autumn, microbial biomass and bamboo height is significant negative correlation, while carbon nitrogen ratio and DBH is negative correlation. In autumn, microbial biomass and bamboo height is the significant negative correlation, and carbon nitrogen ratio with bamboo high is significantly negative correlation. In winter,the microbial biomass N and bamboo height is the negative correlation.but microbial biomass carbon nitrogen ratio with bamboo high a significant positive correlation.2)In spring, the microbial biomass carbon nitrogen ratio is the negative correlation with culm carbon storage and carbon storage aboveground. In summer, the correlation with microbial biomass C and branches carbon storage is significant negative, and with carbon storage aboveground negative. Microbial biomass N is significant negative with culm storage and carbon aboveground. and negative with leaves carbon storage. In autumn, microbial biomass is negative correction with leaves carbon storage and carbon storage aboveground. the microbial biomass carbon nitrogen ratio is significant negative correction with culm carbon storage, and negative correction with branches carbon storage and carbon storage aboveground. In winter, the microbial biomass N is negative correction with culm carbon storage and branches carbon storage and carbon storage aboveground while the microbial biomass C is positive correction with culm carbon storage and branches carbon storage, but negative correction with carbon storage aboveground. |
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