Soil Enzyme Analysis for Leaf Litter Decomposition in Global Wetlands
Soil Enzyme Analysis for Leaf Litter Decomposition in Global Wetlands
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DOI：
10.1080/00103620903325935
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发表时间：
2009-01-01
影响因子：
1.8
通讯作者：
Freeman, Chris
中科院分区：
文献类型：
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作者：
Kang, Hojeong;Freeman, Chris
酶的活性（β-葡萄糖苷酶，N-乙酰氨基葡萄糖苷酶，磷酸酶，芳基硫酸酯酶）测定在各种湿地土壤。从21个地点的土壤样品进行了分析，覆盖纬度范围为5度至60度N和四种类型的湿地（沼泽，沼泽，沼泽和沼泽）。总的来说，最大的活动是在沼泽，其次是沼泽。沼泽和沼泽表现出较少的活动比其他两种类型的湿地。低温和枯枝落叶层质量差是造成这种低活性的主要原因。将本研究中测定的平均酶活性与文献中落叶分解率进行比较。凋落物质量损失的百分比在第一年是高度相关的平均酶活性，当我们比较湿地类型的值。这一结果表明，酶分析可以作为一个指标，在全球范围内的湿地凋落物分解速率。
Enzyme activities (-glucosidase, N-acetylglucosaminidase, phosphatase, and arylsulfatase) were determined in various wetland soils. Soil samples from 21 locations were analyzed, covering a latitudinal range of 5 degrees to 60 degrees N and four types of wetlands (bog, fen, marsh, and swamp). Overall, the greatest activity was found in swamps, followed by marshes. Bogs and fens exhibited less activity than the other two types of wetlands. It appeared that cool temperature and low quality of litter were the main reasons for such low activity. Mean enzyme activity determined in this study was compared to decomposition rates of leaf litter in the literature. Percentage of mass loss of litter in the first year was highly correlated with mean enzyme activity when we compared values by wetland types. This result suggests that enzymatic analysis can be used as an index for litter decomposition rates in wetlands at a worldwide scale.