摘要
本文是在鄂西神农架山区的红桦林中,进行的孢粉组合与植被关系,及其森林植被历史的实验研究。在孢粉统计中、计算了各种类成分的百分频度、浓度、“R”值及其置信区间。论证了由华山松林——红桦林的植被变化过程,各种植物成分间的生态关系。实验证明,研究当地现代花粉与植物间数量关系,以校正化石花粉数值,对于用孢粉学方法研究历史时期的植被与环境,是至关重要的。
This paper is an experimental analysis on the pollen assemblages of Betula alba-sinensis at Mountain Shennongjia, the relations of its vegetation and its forest vegetational history. In terms of pollen statistics, the paper worked out the percentage, concentration, R value of different Taxa their confidence limit. It also expounded the vegetation's process of change from pinus armandii forest to Betula alba-sinensis forest and the ecological relationship between different plant elements. Experiment showed that it is correct to check fossil pollen data through a study on the numerical relationship between the modern pollen and plants in the locality, and it is very important for the study of vegetation and environment in historical stages with palynological method.
出处
《云南地理环境研究》
1990年第2期56-63,共8页
Yunnan Geographic Environment Research
基金
中国科学院自然科学基金
关键词
红桦林
孢粉学
R值
置信区间
森林史
Betula Alba-Sinensis Forest
Palynology
Confidence Limit
Forest History
