黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征
董炜华, 王子婷, 李锋瑞, 刘继亮

Characteristics of Soil Macrofauna Community at An Age Sequence of Cultivation in Process of Oasification in the Middle Heihe River Basin
Wei-hua DONG, Zi-ting WANG, Feng-rui LI, Ji-liang LIU
表2 不同开垦年限农田土壤环境特征
Table 2 Soil environmental properties (Mean ± SE) at an age sequence of cultivation
天然荒漠草地 新垦绿洲农田 百年绿洲农田
土壤温度(℃) 24.34 ± 0.11 17.73 ± 0.41 17.47 ± 0.20
土壤含水量(%) 2.12 ± 0.04 11.82 ± 0.38 12.59 ± 0.30
土壤粗砂(%) 15.64 ± 1.16 22.42 ± 1.99 9.20 ± 0.54
土壤中细砂(%) 83.77 ± 1.14 73.90 ± 1.93 79.21 ± 0.59
土壤粘粉粒(%) 0.59 ± 0.06 3.67 ± 0.35 11.58 ± 0.35
pH 9.35 ± 0.10 8.74 ± 0.03 8.40 ± 0.06
全氮(g/kg) 0.06 ± 0.004 0.52 ± 0.03 0.66 ± 0.02
有机碳(g/kg) 0.56 ± 0.03 6.56 ± 0.48 6.8 ± 0.26
土壤可溶性盐含量(mg/kg) 1185.67 ± 58.0 843.33 ± 57.93 1028.89 ± 85.64