极端干旱对科尔沁沙地小叶锦鸡儿( Caragana microphylla )灌丛土壤呼吸的影响
夏咪, 罗亚勇, 赵鑫宇, 王鹤松, 陈丙昊, 石璨瑜

The impact of extreme drought on soil respiration in Caragana microphylla habitats in the Horqin Sandy Land
Mi Xia, Yayong Luo, Xinyu Zhao, Hesong Wang, Binghao Chen, Canyu Shi
表2 干旱处理对小叶锦鸡儿灌丛土壤水热因子、植物特征、酶活性的影响(平均值±标准误)
Table 2 Effects of different drought treatments on soil hydrothermal factorsplant characteristicsand enzyme activity of Caragana microphyllamean±SE
项目处理
W1W2W3W4W5
土壤温度20.90±0.032c21.80±0.054b21.26±0.183c20.94±0.068c22.90±0.114a
土壤含水量0.017±0.0010.023±0.0040.028±0.0040.023±0.0020.010±0.003
根生物量0.396±0.0990.408±0.1600.380±0.1190.768±0.2131.070±0.377
优势度指数0.559±0.1090.522±0.0480.659±0.0560.516±0.0850.465±0.093
多样性指数0.168±0.0460.243±0.0310.206±0.0410.211±0.0450.208±0.042
均匀度指数0.097±0.0230.163±0.0260.106±0.0220.195±0.0810.142±0.041
脱氢酶3.234±0.3233.667±0.4413.542±0.4323.917±0.1073.917±0.734
蔗糖酶19.354±3.265a16.262±3.106ab21.867±1.712a14.916±2.766ab10.848±3.230b
纤维素酶13.632±0.77112.819±1.02713.812±0.47513.271±1.00413.063±1.066