Pedosphere 16(1): 118--124, 2006
ISSN 1002-0160/CN 32-1315/P
©2006 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Beta-glucosidase activity in paddy soils of the Taihu Lake region, China |
WANG Xiao-Chang1,2 and LU Qin2 |
1 Department of Tea Science, Zhejiang University, Hangzhou 310029 (China). E-mail: xcwang@zju.edu.cn;
2 Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China) |
| ABSTRACT |
| The profile distribution of β-gulcosidase activity in twelve typical paddy soil profiles with high productivity in the Taihu Lake region of China were investigated. Activities of β-gulcosidase in the plow layers were in the range of 52.68-137.02 μg PNP g-1 soil h-1 with a mean of 89.22 μg PNP g-1 soil h-1. However, most plow layers ranged from 70 to 110 μg PNP g-1 soil h-1. The profile distribution of β-gulcosidase activity in the 12 soil profiles decreased rapidly with soil depth, with activity at the 60 cm depth only about 10% of that in the surface layers (0-15 cm or 0-20 cm). In these soil profiles, β-gulcosidase activity was significantly positively correlated with soil organic carbon and arylsulphatase activity. Meanwhile, a significantly negative correlation was shown between β-gulcosidase activity and soil pH. |
| Key Words: beta-gulcosidase activity, profile distribution, paddy soil, Taihu Lake region |
| Citation: Wang, X. C. and Lu, Q. 2006. Beta-glucosidase activity in paddy soils of the Taihu Lake region, China. Pedosphere. 16(1): 118-124. |
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