摘要
为对广西野生荔枝资源保护保存提供依据,研究以广西博白县江宁镇野生荔枝种群为研究对象,采用空间代替时间的分析方法,编制并分析广西野生荔枝种群的静态生命表和生存分析函数值表,结果表明,该野生荔枝种群存活曲线更趋于Deevey-I型,种群的存活率呈单调减少,相应的积累死亡率呈单调增加,其下降或增加的幅度是前期高于后期。种群生长过程中出现了2次死亡高峰期。该野生荔枝种群生存现状严峻,亟待加强保护。
In order to provide information for wild litchi of Guangxi,we studied its age structure and crown density. By analysing the Static life table and Estimated values of four functions of wild litchi population the survival curve of the wildlife litchi population in Guangxi province belonged to Deevcy-I type. The survival rate of wildlife population monotonously decreased, and the accumulated death rate monotonously increased concomitantly. The altered degree was more obvious in early stage than in later stage. There were two death crest-times during the whole growth period observed. The results suggested that the current survival situation of wildlife litchi population in Guangxi province was quite serious, and the protection measure for stabilizing the wildlife litehi population should be took emergently.
出处
《果树学报》
CAS
CSCD
北大核心
2010年第3期445-448,共4页
Journal of Fruit Science
基金
国家荔枝产业技术体系品质育种岗位(nycytx-32-05)
广西科学基金(桂科基075033)
农业部公益性科研专项(nyhyzx07-031)
关键词
野生荔枝
广西博白
生命表分析
Wild litchi ehinensis population
Guangxi Bobai
Analysis on life table
