南京林业大学学报（自然科学版）2011，Vol.35Issue(6)：34-38,5.DOI:10.3969/j.issn.1000-2006.2011.06.007
徐州低山丘陵区侧柏人工林群落的复杂性
Plant community complexity of Platycladus orienalis plantation in low elevation mountains and hills of Xuzhou
摘要
Abstract
To understand the factors influencing the complex change of plantation,the field investigation of plant communities and environmental factors (elevation, slope, aspect, position, and the proportion of rock exposure) of actual Platycladus orienalis plantation in the low mountains and hills of Xuzhou were carried out, the communities were classified into four types based on the species composition and important values. And the total, disordered and structural complexity were measured using the mean length of Huffman code, the 12th order of Renyi entropy and the difference between these two measures, respectively. Then the correlation between the complexities and the species composition, the environmental factors were analyzed. The results revealed that the complexities of actual P. Orienalis plantation differentiated, the complexities were influenced mainly by the species composition factors and environmental factors, the change tendency of the total and structure complexity in whole community and each layer was highly consistent, and was influenced mainly by the proportion of non-dominant species composition, the disordered complexity was restricted mainly by the variation coefficient of species important value. Environmental factors influenced the complexities through effecting species composition. Therefore, the ways such as thinning, introduction, replanting and so on could be used to improve the forest structure, and to enhance the complexity and stability of actual P. Orienalis plantation.关键词
侧柏人工林/群落/复杂性/物种组成/环境因子Key words
Platycladus orienalis plantation/ community/ complexity/ species composition/ environmental factor分类
农业科技引用本文复制引用
尤海梅,藤原一绘..徐州低山丘陵区侧柏人工林群落的复杂性[J].南京林业大学学报（自然科学版）,2011,35(6):34-38,5.基金项目
日本文部省基金项目(16255003) （16255003）
徐州师范大学自然科学基金重点项目(10XLA10) （10XLA10）
