Abstract

Summary and conclusion 1. Phytogeographically speaking this region is an eastern extension of the Laurel belt of the southern part of mainland China. 2. Owing to the influences of the ocenanic currents of the east and west of the island Formosa, the N. E. and S. W. winter and summer monsoon, and rugged physiographic features, the habitat of this district is very complicated. 3. The factor of complexity of this region has developed diversified groups of plant community within the Lauro-Fagaceous association in rather small areas. 4. The particular ecological features of this region" bring about much lower distributional limit in elevation of many important species of plants such as, Chamecyparis formosensis, Ch. obtusa var. formosana, Tsuga chinensis, Taxus speciosa, which grow much higher in elevation in other regions nearby this district.

中文摘要

1. Phytogeographically speaking this region is an eastern extension of the Laurel belt of the southern part of mainland China. 2. Owing to the influences of the oceanic currents of the east and west of the island Formosa, the N.E. and S.W. winter and summer monsoon, and rugged physiographic features, the habitat of this district is very complicated. 3. The factor of complexity of this region has developed diversified groups of plant community within the Lauro-Fagaceous association in rather small areas. 4. The particular ecological features of this region bring about much lower distributional limit in elevation of many important species of plants such as, Chamecyparis formosensis, Ch. obtusa var. formosana, Tsuga chinensis, Taxus speciosa, which grow much higher in elevation in other regions nearby this district. 5. The forest management plan of this district in reforestation, in conversive cutting of natural forests for replantation, and in selection of cutting methods, should be carefully drawn and not blindly follow the principles of vertical distribution limit of certain species applying to large areas in this district. 6. Especially the practice of tea plantation, which is now carrying on in this district extensively, owing to have variable habitat with each small localities, should not take large tract of land or cover the whole mountain as one unit of cultural treatment, but small areas with intensive studies of their individual environmental conditions be needed and highly recommended.