河套灌区不同秋浇年限对土壤细菌群落的影响

张晓丽,张宏媛,卢闯,逄焕成,靳存旺,高喜,程挨平,李玉义

Effects of the Different Autumn Irrigation Years on Soil Bacterial Community in Hetao Irrigation District

XiaoLi ZHANG,HongYuan ZHANG,Chuang LU,HuanCheng PANG,CunWang JIN,Xi GAO,AiPing CHENG,YuYi LI

表1 收获后不同处理0—40cm土层盐分、pH及活性有机碳含量

Table 1 The soil salt, pH and active organic carbon content under different treatments in 0-40cm soil after sunflower harvest

土层深度 Soil depth (cm) 处理 Treatment 全盐 Salt content (g·kg-1) pH 微生物量碳 Microbial biomass C (mg·kg-1) 可溶性有机碳 Soluble organic C (mg·kg-1) 0-10 CK 2.62±0.14a 8.62±0.02b 12.98±0.11d 36.42±0.11e AUI1 1.57±0.01d 8.52±0.03c 20.49±0.43b 57.83±0.35a AUI2 1.69±0.01c 8.33±0.08d 23.17±0.23a 49.27±0.26b AUI3 2.13±0.01b 8.44±0.08c 14.15±0.12c 43.26±0.28c AUI4 2.23±0.01b 9.11±0.10a 20.36±0.13b 40.53±0.27d 10-20 CK 2.42±0.01a 8.59±0.03b 10.43±0.12e 36.76±0.24e AUI1 0.76±0.01e 8.68±0.02b 30.27±0.17a 60.27±0.19a AUI2 1.86±0.03d 8.27±0.04d 22.66±0.12b 51.19±0.21b AUI3 2.11±0.01c 8.40±0.03c 16.10±0.11c 39.40±0.26d AUI4 2.23±0.01b 9.11±0.10a 12.53±0.12d 41.62±0.25c 20-30 CK 2.12±0.03b 8.52±0.02c 3.53±0.08e 34.35±0.18e AUI1 0.80±0.01e 8.67±0.01b 34.31±0.09a 43.71±0.19b AUI2 1.99±0.01d 8.42±0.01d 18.84±0.11b 45.37±0.23a AUI3 2.29±0.01a 8.54±0.03c 11.50±0.08c 35.64±0.21d AUI4 2.05±0.02c 9.29±0.11a 9.95±0.11d 42.14±0.18c 30-40 CK 2.13±0.04c 8.73±0.06b 2.70±0.08e 36.45±0.19c AUI1 0.72±0.01e 8.73±0.02b 19.55±0.06a 51.87±0.18a AUI2 3.00±0.01a 8.31±0.05d 9.03±0.07b 40.51±0.21b AUI3 2.69±0.01b 8.60±0.03c 5.13±0.11c 34.32±0.18d AUI4 1.75±0.04d 9.34±0.03a 4.63±0.10d 40.22±0.15b