摘要
对贵州喀斯特地貌上的３０个植物进行营养成分研究，以Ｃａ、Ｍｇ营养为依据，采用聚类分析方法，进行定量分类，结果表明：嗜钙型Ｃａ＋Ｍｇ在４．０％以上；喜钙型Ｃａ＋Ｍｇ在３．０％～４．０％之间；随遇型Ｃａ＋Ｍｇ１．４％～２．５％；厌钙型Ｃａ十Ｗｇ１．３％以下。同时探讨了喀斯特地区植被人工恢复及演替的自身营养依据。
In this paper, the nutrient element content of 30 plants of the Guizhou Karst region is presented. And according to each Ca、Mg content, they are classified by quantitave analysis. The results showed as follows:calciphile,Ca+Mg higher than 4.0%; preference, Ca+Mg 3.0%-4.0%; indifference, Ca+Mg 1.4 %-2.5%; calcifuge, Ca+Mg lower than 1.3%. At the same the the plants' selves nutrient foundation has ben found out both for their artificial recovery and for their selfdevelopment in Karst region.
基金
贵州省基金
关键词
森林
喀斯特植被
定量分类
营养元素
Karst vegetation calcieolous character quantatitive classification
