岩溶湿地和稻田的土壤酶活性与CO2和CH4排放特征

袁武,靳振江,程跃扬,贾远航,梁锦桃,邱江梅,潘复静,刘德深

Characteristics of Soil Enzyme Activities and CO2 and CH4 Emissions from Natural Wetland and Paddy Field in Karst Areas

YUAN Wu,JIN ZhenJiang,CHENG YueYang,JIA YuanHang,LIANG JinTao,QIU JiangMei,PAN FuJing,LIU DeShen

表1 不同湿地类型理化指标及养分含量

Table 1 Physical and chemical indicators and nutrient contents of different wetland types

因子 湿地类型Wetland type Factor 稻田 湖泊湿地 Paddy field Lake wetland pH (H2O) 7.36±0.02b 7.63±0.08a 阳离子交换量CEC (cmol·kg-1) 22.13±0.25a 20.05±3.21a 交换性钙 Exchangeable Ca2+ (cmol·kg-1) 14.39±2.03a 14.49±0.59a 交换性镁Exchangeable Mg2+ (cmol·kg-1) 1.03±0.11a 0.55±0.04b 土壤有机碳SOC (g·kg-1) 26.62±0.32a 14.49±8.37b 可溶性有机碳DOC (mg·kg-1) 202.30±10.34a 116.60±47.78b 全氮TN (g·kg-1) 2.46±0.01a 1.42±0.71b 碱解氮AN (mg·kg-1) 89.54±2.59a 45.24±3.36b 全磷TP (g·kg-1) 0.87±0.04a 0.33±0.12b 有效磷AP (mg·kg-1) 30.50±2.30a 3.28±0.18b