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
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董炜华, 王子婷, 李锋瑞, 刘继亮
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Characteristics of Soil Macrofauna Community at An Age Sequence of Cultivation in Process of Oasification in the Middle Heihe River Basin
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Wei-hua DONG, Zi-ting WANG, Feng-rui LI, Ji-liang LIU
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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 |
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| 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 |
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