In this paper , 4 types of vegetation ( broad - leaved , masson pine , chinese fir and phyllostachy pubescens ) , which are widely distributed in subtropical area of southern china , were selected to investigate cotent and spatia - temporal , characteristic of wsoc . two kinds of bamboo { phyllostachy pubescens and phyllostachys praecox ) were used to test the effects of intensive management on soil loc 本文采用野外调研和定位试验相结合的方法，比较研究了亚热带具代表性的常绿阔叶林、马尾松林、杉木林和毛竹林四种森林类型土壤活性有机碳的含量、空间变异、年动态变化规律及其与土壤其他肥力指标的关系。
In both regions , responses of corg to land uses were similar with c ( subscript mic ) - to - c ( subscript org ) , and the results also showed that anthrostagnic soil ( paddy field ) was not only in favor of the carbon sequestration but also helpful to the microbial biomass enhancement 长期定位试验中化肥在半数稻田监测点上提高了土壤微生物商；中量和高量有机肥平均使稻田土壤微生物商提高了17 . 94 %和19 . 91 % ，作用优于化肥单施；秸秆处理作用与中量有机肥接近，土壤微生物商提高17 . 51 % 。
The results of two fized position researches show that the output and productive value of vegetable are all promoted , especially the quality of agricultural products if improved and the pollution of nitrate is reduced by adding the good quality microfertilizers , combinating the microfertilizer , organic fertilizer and inorganic feilizer , and reducing the amount of chemical fertilizer 摘要两项田间定位试验结果表明，蔬菜生产上，适当减少化肥用量、增施优质微生物菌肥、微生物菌肥与化肥和有机肥配施等施肥技术均提高蔬菜产量和产值，尤其对降低硝酸盐含量效果明显。
