山西农业大学学报（自然科学版）2018，Vol.38Issue(6)：49-54,6.DOI:10.13842/j.cnki.issn1671-8151.201801006
山西历山连香树种群动态研究
Dynamic study of Cercidiphyllum j aponicum in Lishan ,Shanxi province
摘要
Abstract
[Objective] The purpose of the study was to understand the developmental trend of Cercidiphyllum j aponi-cum population in Shanxi ,to explore the main reasons why species became endangered ,and to provide a theoretical ba-sis for the protection of Cercidiphyllum j aponicum .[Methods] Using the method of "space instead of time" ,the age structure ,static life tables and survival curves of the population of Cercidiphyllum j aponicum were studied in Qinshui and Yuanqu counties in Shanxi Lishan National Nature Reserve ,and the population dynamics were predicted and ana-lyzed .[Results] The results showed that :(1) The age structure of the tree population was basically "inverted cone"shape with fewer seedlings and saplings ,but more middle - aged groups ,of which the number of seedlings in Yuanqu County were more than those in Qinshui County ,(2) The survival curve of the population showed as Deevey Ⅲ type with less number of the population and declining trend;(3) In the next 10 to 20 years ,seedlings and saplings popula-tion would be decreased drastically ,and the number of aged plants would be climbed up .The number of individuals of the both populations in different counties would be reduced and the population density would be declined dramatically . [Conclusion] The reproductive characteristics and the harsh requirements on habitats are the main reasons to lead to species endangerment .For the protection purposes of Cercidiphyllum j aponicum in Shanxi Lishan , the strategies should be focused on artificial measures as much as possible to breed and cultivate seedlings in Yuanqu County;while for Qinshui County ,besides artificially increasing seedling numbers ,restriction of human activities on the species habi-tats should be conducted to avoid any disturbance and destruction of tree population development .关键词
连香树/山西历山/沁水县/垣曲县/年龄结构/数量动态Key words
Cercidiphyllum j aponicum/Shanxi Lishann/Qinshui County/Yuanqu County/Age structure/Prediction of Time dynamic分类
农业科技引用本文复制引用
张志娟,毕润成..山西历山连香树种群动态研究[J].山西农业大学学报（自然科学版）,2018,38(6):49-54,6.基金项目
山西省化学优势重点学科建设生态化学子项目(912019) （912019）
山西师范大学校科学研究基金项目(ZR1218) （ZR1218）
