贵州梵净山水青冈林在地理分布上的意义

中国科学院大学学报

贵州梵净山水青冈林在地理分布上的意义

简焯坡, 应俊生, 马成功, 李雅茹, 张志松, 闵天禄

(中国科学院北京植物研究所)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1975-01-18 发布日期:1975-01-18
通讯作者: 简焯坡

The Distribution of Beech Forests of Mt. Fanching Shan and Its Signicance in Plantgeography

Tsien Cho-Po, Ying Tsün-Shen, Ma Cheng-Gung, Li Ya-Lu, Chang Che-Sung, Ming Tien-Lu

(Peking Institute of Botany, Academia Siniea)

Received:1900-01-01 Revised:1900-01-01 Online:1975-01-18 Published:1975-01-18
Contact: Tsien Cho-Po

摘要/Abstract

Abstract:

In this paper, the distribution of three species of beech forests, regarding their

position on differently facing slopas and at different elevations, as well as their pollen

distribution, on Fanching Shan situated in Kweichow Province in South-eastern

China is discussed.

It is the fact that (1) Being affected by the air currents of the Pacific Monsoon,

and by its own topographic variation, the difference between the north and south

slopes in its eastern and western flanks reflected on the plant communities by the

humidity-warmth relationships (fig. 2, 3; tab. 2, 3, 4). (2) The patterns of the hori-

zontal distribution of three species in China show that Fagus engleriana has a

northern-most range, F. longipetiolata the southern-most range, while F. lucida is

intermediate between them (fig. 5). (3) From the palynological analysis of the soil

layers, the waxing and waning of the different tendencies of Fagus spp. on different

slopes are rather prominent.

The discussion is made mainly as follows. The relationship between the state of

growth and humidity-warmth conditions is shown (fig. 6). In accordance with the

conditions of the vertical, horizonal and palynological distribution of beeches, we have

tried to present a figure (fig. 7) which shows the waxing and waning tendencies of

three species of Fagus historically, with respect to different slopes. The southern

slope of western flank (Ws) is now in a state moderate growth of Fagus longipetio-

lata; in the past, there had been a period which saw this beech enjoying a gradual

increase, but later on it began to wane till it reaches the present state. The Wn slope

had seen a gradual increase of Fagus lucida in the historical time (at the same time

there was an accompanying slow increase of F. longipetiolata), till a certain period

when the total number of beech pollen grains decreases gradually in the analysis;

this is followed again by a slight increase, the last increase is apparently due to the

fact that in spite of the decrease of F. lucida, there was a great increase in F. longi-

petiolata. The two effects combine to make the line of curve to lower rather than

to rise. The Es slope has in its historical past a period when beeches were favoured

with a steady increase, and this tendency is apparently still in progress today,

although it is approaching its culmination. The En slope had seen Fagus engleriana

in a slowly receding tendency, and sees it now almost in the process of being eli-

minated, to be replaced by F. lucida. Through the explanation given above, we have

thereby an understanding about the relationship between the climatic changes in the

historical time and the waxing and waning of the different beeches in both time and

space.

简焯坡, 应俊生, 马成功, 李雅茹, 张志松, 闵天禄. 贵州梵净山水青冈林在地理分布上的意义[J]. 中国科学院大学学报.

Tsien Cho-Po, Ying Tsün-Shen, Ma Cheng-Gung, Li Ya-Lu, Chang Che-Sung, Ming Tien-Lu. The Distribution of Beech Forests of Mt. Fanching Shan and Its Signicance in Plantgeography[J]. .