| 黄河三角洲冲积平原湿地土壤尿酶活性与养分通径分析 |
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| 引用本文： | 刘艳,侯龙鱼,崔晓东,马风云,邢尚军. 黄河三角洲冲积平原湿地土壤尿酶活性与养分通径分析[J]. 华中农业大学学报, 2007, 26(3): 327-329 |
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| 作者姓名： | 刘艳 侯龙鱼 崔晓东 马风云 邢尚军 |
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| 作者单位： | 山东农业大学林学院,泰安,271018;山东省林业科学研究院,济南,250014 |
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| 基金项目： | 山东省重点项目(011150106)，山东农业大学博士后基金项目资助 |
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| 摘 要： | 运用通径分析法研究了黄河三角洲冲积平原湿地土壤中尿酶活性与土壤养分的关系。结果表明:土壤尿酶活性关于土壤养分的标准化多元线性回归方程可以解释99.7%酶活性变化,剩余通径系数为0.059。有机质对尿酶活性的直接通径系数和决定系数值均最大,成为影响尿酶活性的主要因素。
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| 关 键 词： | 土壤尿酶活性 湿地 通径分析 黄河三角洲 |
| 文章编号： | 1000-2421（2007）03-0327-03 |
| 修稿时间： | 2006-12-21 |
Path Analysis between Soil Urease Activity and Nutrient Contents of Natural Wetland in Yellow River Delta |
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| LIU Yan,HOU Long-yu,CUI Xiao-dong,MA Feng-yun,XING Shang-jun. Path Analysis between Soil Urease Activity and Nutrient Contents of Natural Wetland in Yellow River Delta[J]. Journal of Huazhong Agricultural University, 2007, 26(3): 327-329 |
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| Authors: | LIU Yan HOU Long-yu CUI Xiao-dong MA Feng-yun XING Shang-jun |
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| Affiliation: | 1. College of Forestry, Shandong Agricultural University, Taian 271018, China;2. Shandong Academy of Forestry, Shandong Province, Jinan 250014, China |
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| Abstract: | The relationships between soil urease activity and soil nutrient contents of four different wetlands in Yellow River Delta were studied through path analysis.The results showed that the standard multiple regression equation by the set of independent variable(nutrient elements) explained 99.7% of urease activities of variance.The residual or err path coefficient was 0.059.Organic matter which has the maximum of path coefficient and determinative coefficient is the main factor of soil nutrients affecting soil urease activity. |
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| Keywords: | soil urease activity wetland path analysis Yellow River Delta |
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