四川林业科技2011，Vol.32Issue(5)：1-7,7.
麻疯树个体衰老的环境差异与生态复壮研究
A Study of Environmental Differences of Individual Senescence of Jatropha curcas and its Ecological Rejuvenescene
摘要
Abstract
In this paper, studies vere made of the individual senescence status of Jatropha curcas and its ecological rejuvenescene under different habitat quality in the Jinsha River＇s dry-hot valley of Panzhihua section. The habitat quality of J. curcas was classified as three types ： excellent, fit and unfit. Statistatical analysis was made of the significant difference of diameter, height, crown width and age, fruit and seed size of old trees in varied habitats but the difference among both was not common. In the excellent habitat, the senescence delayed, regeneration and reproduction capacity relatively were good, but in the unfit habitat the senescence was earlier, and the capacities of regeneration and reproduction were relatively weak. After stem-cut, tree regeneration was relatively good in the poor-soil habitat of Sanduizi plots, and yet better in the fertilized and deep soil habitat of Gufenchang plots. The senescence features of J. curcas positively matched with the L-H-S strategy of ecological adaptation, which could interpret the phenotypic groups of ＂height-growth ratio of new branch-fruit and seed size＂ in differently typical habitat types of the fit survival environment of dry-hot valleys in the Jinsha River watershed.关键词
麻疯树/衰老/截干/生态复壮/L—H—S策略Key words
Jatropha curcas/Senescence/Cutting stem/Ecological rejuvenescence/L-H-S strategy分类
农业科技引用本文复制引用
何亚平,费世民,王鹏,蔡小虎,王乐辉,陈秀明,蒋建强,雷彻虹..麻疯树个体衰老的环境差异与生态复壮研究[J].四川林业科技,2011,32(5):1-7,7.基金项目
四川省麻疯树资源培育科技支撑项目和西南地区麻疯树资源良种选育及规模化、综合利用关键技术研究与示范. （）
