[1]WANG Dong,ZHANG Hong-jiang,CHENG Jin-hua,et al.Grey Correlation Analysis on Factors Influencing Canopy Interception in Jinyun Mountain in Chongqin[J].Research of Soil and Water Conservation,2007,14(06):264-267.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
14
Number of periods:
2007年06期
Page number:
264-267
Column:
Public date:
1900-01-01
- Title:
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Grey Correlation Analysis on Factors Influencing Canopy Interception in Jinyun Mountain in Chongqin
- Author(s):
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WANG Dong, ZHANG Hong-jiang, CHENG Jin-hua, CAO Qi-guang, CHENG Yun, HE Fan
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College of Soil and Water Conservation in Beijing Forestry University, Key Lab of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China
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- Keywords:
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canopy interception; grey correlation degree; analysis of grey correlation
- CLC:
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S715.2
- DOI:
-
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- Abstract:
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To research the relation of factors influencing canopy interception in Jinyun Mountain in Chongqing, by the grey system theory, the authors calculate the grey correlation degree of factors influencing canopy interception.Based on the grey system theory, we find out the primary and secondary relation of factors influencing canopy interception in Jinyun Mountain.For mixed broadleaf-conifer forest, the influencing priority of analyzed factors is precipitation>rainfall intensity>temperature>air humidity>wind velocity.The highest grey correlation degree is precipitation, it reach 0.87.Air humidity is the worst factor, it is only 0.75.For broad-leaved forest, the priority is air humidity>temperature>precipitation>rainfall intensity>wind velocity, the data of grey correlation degree are approximate, the difference of the maximum and minimum grey correlation is only 0.089 91.For Phyllostachys pubescens forest, the influencing priority of analyzed factors is precipitation >rainfall intensity>air humidity >wind velocity >temperature, the grey correlation degree of precipitation is 0.97, the worst grey correlation degree is temperature, it is 0.79.Precipitation, rain intensity and wind velocity, temperature, air humidity, those factors greatly affect the amount of the canopy interceptions.The canopy interceptions of mixed broadleaf-conifer forest and Phyllostachys pubescens forest are mainly influenced by the process of rainfall, the grey correlation degree is 0.85.The process of evapotranspiration is important to the canopy interception of broad-leaved forest, but the influenced by precipitation is greatly than rainfall intensity.