安徽农业科学Issue(30)：14839-14843,5.
重庆四面山森林植物群落数量分类和排序
Quantitative Classification and Ordination of Simian Mountains, Chongqing
摘要
Abstract
Based on the field survey of plant quadrates, a quantitative analysis of the communities on Simian Mountains, Chongqing was performed with TWINSPAN (Two way indicator species analysis) and DCCA ( Detrended canonical correspondence analysis) methods. Fifty quadrates collected from Simian Mountains were, classified into fourteen types, representing fourteen formations by TWSNSPAN. The result of classification sum up the forest vegetation types of Simian Mountains comprehensively. Fourteen formations are all, subtropical nature of the secondary vegetation types. The gathered groups of plant quadrates in the space of DCCA ordination are consistent with the result of TWINSPAN, fourteen formations resulted from TWIINSPAN all have its corresponding distribution in the two-dimensional sorted map DCCA, but there is no obvious boundaries between different plant communities. This reveals a relationship between plant formations and environmental gradients. The integrated gradient of soil moisture and temperature determined by the elevation is the main environmental factors which determine the distribution pattern of plant communities in Simian Mountains, and slope degree and slope position impacts the distribution in some extent, too. In addition, human disturbance also plays an important role in the distribution of plant communities.关键词
植物群落/分类/排序/重庆四面山Key words
Plant communities/ Classification/ Ordination/ Simian Mountains, Chongqing分类
农业科技引用本文复制引用
白芝兵,张洪江,任改..重庆四面山森林植物群落数量分类和排序[J].安徽农业科学,2012,(30):14839-14843,5.基金项目
"十一五"林业生态建设关键技术研究与示范(2006BAD03A1304) （2006BAD03A1304）
国家林业局948项目(2006-4-26). （2006-4-26）
