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| Application of canonical correlation analysis to the research of wetland soil characters: A case study on natural wetland in Yellow River Delta |
| Hou Longyu1,Liu Yan1,Ma Fengyun1,Song Yumin2,Cui Xiaodong1,Chen huailiang1 |
| 1.Forestry College of Shandong Agricultural University,271018,Tai'an,Shandong;2.Shandong Academy of Forestry,250014,Jinan: China |
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Abstract In order to evaluate and manage wetland,characteristics of soil nutrient elements and enzyme activities of nature wetland were studied in Yellow River Delta.Canonical correlation analysis was applied to the research of relation between soil nutrient element and soil enzyme activity.The results show that soil nutrient elements changed regular along far away from the coastline.The soil enzyme activities of urease and catalase in wetland soil were almost in the same order,while the activity of soil peroxidase was on the contrary.The soil property was analysed and assessed by the "integral soil enzyme factor","integral soil nutrient factor" and their ordination.The biggest canonical correlation coefficient was 0.998 8,whose eigenvalue ratio reached 99.36%.It was significant at 0.01 level.Its ordination of the first pair of canonical variable had the better linear characteristic.So the biggest canonical coefficient can be used to evaluate the nature wetland as a indicator.
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Received: 25 January 2007
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