摘要
研究了江西省吉安县不同类型湿地松人工林的物种多样性，结果表明：（1）白檀、黄栀子、山莓、菝葜、黄荆、小果蔷薇等物种在各类型林地中重要值相对较高。（2）丰富度指数在3—28之间．均匀度指数在0．6290—0．9547之间，Simpson指数在0．6056～0．9338之间，Shannon—Wiener指数在1．4592—3．9809之间。（3）类型Ⅲ Shannon—Wiener指数和丰富度指数远低于类型Ⅱ和类型Ⅰ，Simpson指数大小依次为：类型Ⅰ〉类型Ⅲ〉类型Ⅱ，而均匀度指数却是类型Ⅲ〉类型Ⅰ〉类型Ⅱ。（4）对于类型Ⅲ我们要采取人工补种的措施加速林下植被的恢复，合理引入白檀、菝葜、山莓、黄栀子等适应性较强的物种。
The characteristics of species diversity of different types of artificial P. eUiottii forest communities were studied. The results were as follows： Firstly, the species such as Symplocos baniculata, Smilax china, Rubus corohorifolius, Vitex negundo L. , Rosa cymosa etc had a comparable higher IV （important value index） in every community type. Secondly, the richness index of shrub layer species of different community types ranged from 3 to 28, and the evenness index from 0. 629 0 to 0. 954 7 ; the Simpson index from 0. 606 5 to 0. 933 8, the Shannon - Wiener index from 1. 459 2 to 3. 980 9. Thirdly, The species richness index and Shannon - Wiener index of type Ⅲ were significantly lower than those of the other two types, but the Simpson index order was type Ⅰ 〉 type Ⅲ 〉 type Ⅱ and the evenness index order was type Ⅲ 〉 type Ⅰ 〉 type Ⅱ. Fourthly, for type Ⅲ ,suitable measures should be taken, incldding introducing endurable species, such as, Symplocos baniculata, Smilax china, Gardenia jasminoides, etc. to improve the recovery course of undergrowth vegetation.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2006年第1期78-83,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
江西省林业科技攻关项目(200105)
关键词
湿地松林
人工林
物种多样性
林下植被
P. elliottii forest
artificial forestry
species diversity
undergrowth vegetation
