不同耕作措施下添加秸秆对土壤有机碳及其相关因素的影响

王碧胜,于维水,武雪萍,高丽丽,李景,宋霄君,李生平,卢晋晶,郑凤君,蔡典雄

Effects of Straw Addition on Soil Organic Carbon and Related Factors Under Different Tillage Practices

BiSheng WANG,WeiShui YU,XuePing WU,LiLi GAO,Jing LI,XiaoJun SONG,ShengPing LI,JinJing LU,FengJun ZHENG,DianXiong CAI

表2 土壤有机碳、土壤酶活性与微生物量碳、团聚体组成的相关系数

Table 2 The correlation of soil organic carbon, soil enzyme activity, and microbial biomass carbon and aggregates distribution

项目 Item SOC MBC BG CBH BXYL >2000 μm 2000-250 μm 250-53 μm ＜53 μm SOC 1 0.672** 0.810** 0.665** 0.730** 0.501* 0.691** -0.724* -0.489* MBC 1 0.813** 0.811** 0.700** 0.690** 0.808** -0.870** -0.554* BG 1 0.951** 0.928** 0.643** 0.538* -0.665** -0.271 CBH 1 0.926** 0.553* 0.448* -0.591** -0.173 BXYL 1 0.448* 0.39 -0.471* -0.209