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分析了施肥对土壤活性碳（CA）、微生物生物量碳（CMB）、矿化碳（CM）及碳库管理指数（CPMI）的影响。结果表明，不同土壤CA、CMB、CM及CPMI的大小为：水稻土＞黄棕壤＞红壤＞潮土。施肥对CA和CPMI，CMB和CM的影响分别为：处理3＞处理5＞处理1＞处理4＞CK，处理3＞处理5＞处理4＞处理1＞CK。在提高CA、CMB、CM及CPMI方面，稻草肥、绿肥优于厩肥，厩肥高量施用优于常量施用。施肥10年与5年相比，潮土中CPMI处理7和9上升，处理8和CK下降。相关分析表明：CPMI与土壤养分因子相关或极相关，反映了农业生产措施对土壤碳库的影响，可以运用CPMI来评估土壤碳库的变化。
The effects of fertilization on soil active carbon (CA), microbial biomass carbon (CMB), mineralized carbon (CM) and carbon inventory management index (CPMI) were analyzed. The results showed that the contents of CA, CMB, CM and CPMI in different soils were paddy soil> yellow brown soil> red soil> alluvial soil. The effects of fertilization on CA and CPMI, CMB and CM were as follows: Treatment 3> Treatment 5> Treatment 1> Treatment 4> CK, Treatment 3> Treatment 5> Treatment 4> Treatment 1> CK. In improving CA, CMB, CM and CPMI, straw fertilizer and green manure were better than manure and high manure application was better than constant. Compared with 5 years of fertilization in 10 years, CPMI treatments 7 and 9 in Chao soil increased, while treatments 8 and CK decreased. Correlation analysis showed that the correlation between CPMI and soil nutrients was very significant, reflecting the impact of agricultural practices on soil carbon stocks. CPMI could be used to evaluate the changes of soil carbon stocks.