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LIU Xin-chao. Life Table and Survival Analysis of an Endangered Keteleeria fortunei Population[J]. Journal of Sichuan Forestry Science and Technology, 2019, 40(1): 1-4. doi: 10.16779/j.cnki.1003-5508.2019.01.001
Citation: LIU Xin-chao. Life Table and Survival Analysis of an Endangered Keteleeria fortunei Population[J]. Journal of Sichuan Forestry Science and Technology, 2019, 40(1): 1-4. doi: 10.16779/j.cnki.1003-5508.2019.01.001

Life Table and Survival Analysis of an Endangered Keteleeria fortunei Population


doi: 10.16779/j.cnki.1003-5508.2019.01.001
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  • Received Date: 2018-08-15
  • Based on the field survey of Keteleeria fortunei population,a rare and valuable plant species in Changle District,Fuzhou City,the life table and survival analysis of this population were explored to study the dynamic population variation.The results showed that medium trees formed the largest K.fortunei population,followed by the large trees,while the small trees formed the smallest population in Changle City.Meanwhile,the population survival curve was a concave one,which tended to Deevey type Ⅲ,representing as a decline population.The trend of mortality rate and risk rate in K.fortunei population was basically similar.The early mortality rate of K.fortunei population was high,while the population mortality rate was relatively low at the age of VI.The population survival curve showed that the K.fortunei population decreased rapidly in early age period,stable in middle age period,and declined in old age period.
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Life Table and Survival Analysis of an Endangered Keteleeria fortunei Population

doi: 10.16779/j.cnki.1003-5508.2019.01.001
  • The Forestry Bureau of Changle District, Fuzhou City, Fuzhou 350200, China

Abstract: Based on the field survey of Keteleeria fortunei population,a rare and valuable plant species in Changle District,Fuzhou City,the life table and survival analysis of this population were explored to study the dynamic population variation.The results showed that medium trees formed the largest K.fortunei population,followed by the large trees,while the small trees formed the smallest population in Changle City.Meanwhile,the population survival curve was a concave one,which tended to Deevey type Ⅲ,representing as a decline population.The trend of mortality rate and risk rate in K.fortunei population was basically similar.The early mortality rate of K.fortunei population was high,while the population mortality rate was relatively low at the age of VI.The population survival curve showed that the K.fortunei population decreased rapidly in early age period,stable in middle age period,and declined in old age period.

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