作　　者： ; ; ; ;

机构地区： 华南农业大学林学院

出　　处： 《西南林学院学报》 2005年第4期 60-63,共4页

摘　　要： 对绢毛相思、大叶相思、南洋楹、黎蒴、枫香、木荷、三角枫、鸭脚木、红椎、阴香、大叶桃花心木、格木12种幼树的地径、树高和冠幅生长进行调查,用聚类分析将其分为3类.第一类为速生树种,有南洋楹和大叶桃花心木;第二类为生长速度中等树种,有绢毛相思、大叶相思、木荷和红锥;第三类为生长速度较慢树种,有黎蒴、枫香、三角枫、鸭脚木、阴香、格木.对9个样地的土壤化学性质分析表明:各样地有机质含量中等,大多数样地全N和碱解N含量中等.所有样地全P和有效P含量均很低,全K和速效K含量也普遍偏低. 12 studied tree species were divided into three of the basal diameter, tree height and crown width of the categories by cluster analysis on investigated data seedlings. The first category was fast -growing tree species including Albizia falcate and Swietenia macrophylla. The second category was tree species with medium growing speed including Acacia holosericea , Acacia auriculaeformis , Schima superba and Castanopsis hystrix. And the third category was slow -growing tree species including Castanopsisfissa, Liquidambarformosana, Acer buergerianum, Schefflera octophylla, Cinnamomum burmanii and Erythrophloeumfordii. Analysis of chemical properties of soils sampled from 9 plots indicated that the organic matter contents were medium in all of the plot soils, contents of the total N as well as the alkalized N were medium in most of the plot soils, whereas the contents of the total P, available P were very low and the total K and available K were generally low in all of the plot soils.

关 键 词： 马占相思 林分改造 树种选择 土壤养分

领　　域： [农业科学] [农业科学]