土壤学报2000，Vol.37Issue(2)：166-173,8.
施肥对土壤不同碳形态及碳库管理指数的影响
EFFECTS OF FERTILIZATION ON DIFFERENT CARBON FRACTIONS AND CARBON POOL MANAGEMENT INDEX IN SOILS
摘要
Abstract
Effect of fertilization on active C (CA), microbial biomass C (CMB), mineralizable C (CM) and C pool management index (CPMI) in different soils were examined. Results indicated that among those studied soils, soil CA, CMB, CM and CPMI were the highest in paddy soil, the second in yellow brown soil, the third in red soil and the lowest in Cao soil. Effects of different treatments on CA, CPMI, CMB and CM were organic manure＞organic manure + NPK＞reference＞NPK＞CK, organic manure＞organic manure + NPK＞NPK＞reference＞CK respectively. In raising CA, CMB, CM and CPMI, effects of different organic fertilizer types and application were rice straw, green manure better than farmyard manure, high application better than conventional application. Compared 5-y fertilization with 10-y fertilization, CPMI in Cao soil under organic fertilizer and organic fertilizer + NPK treatments increased, while CPMI decreased under NPK and CK treatment. Correlation analysis showed: CPMI was well related to total C, total N, microbial biomass C and N, available N, P and K in these soils and sensitive to agricultural measures, which indicated that it is practical to assess soil C pools under different management practices using CPMI.关键词
活性碳/微生物生物量碳/矿化碳/碳库管理指数Key words
Active C/Microbial biomass C/Mineralilzable C/C pool mana gement index分类
农业科技引用本文复制引用
沈宏,曹志洪,徐志红..施肥对土壤不同碳形态及碳库管理指数的影响[J].土壤学报,2000,37(2):166-173,8.基金项目
本文得到了国家自然科学基金项目(批准号：49671043)的资助 （批准号：49671043）
