琅琊山森林群落演替及其经营利用

本文根据3200m~2样带和15条样线上的抽样资料,以优势种群组为主线,研究结果表明:1.琅琊山森林群落25年后将进入平衡态;如无外界大的干扰,终将演替为以青檀、五角枫、榉树为优势种群的顶极群落。2.麻栎、化香不耐荫,林下幼苗长势微弱,枯损严重;若不采取人为促进更新措施,麻栎、化香将从群落中消退。3.琅琊山森林公园可划分为三个地理区域,即主景区、缓冲区和生产区。

SUCCESSION OF FOREST COMMUNITIES IN LONGYA MT. AND THEIR MANAGEMENT

On the basis of data collected from 15 sampling lines of 3200 m2 in Longya Mt.Anhui Province, we havs discussed the temporal seiuenceof forest succession in terms of dominant tree speeies, established a SATS moiel for spatial transformation of forest communities, and predicted the structural model and the start of the stabilized forest communities. The conclusions reached are summarized as follows. 1. Forest communities in Longya Mt. demonstrate a relatively integral time-sequence of succession and could reach a stable state after 25 years or so. If there is no any external interference, the terminal stage of succession would be dominated by Pteroceltis tatarinowii, Acer mono and Zeiko a schneideriana that form the regional climax. 2 . Quercus accutissima and Plaiycarya strobilacea arc very poor in natural regeneration because of their intolerance. Their weakly growing seedlings occur sparsely. Their trees are deteriorated seriously, making 65.38% of the the total died and dying trees of the communities. It is inevitable that Q. accutissima and P. strobilacea could be eventually eliminated through competition if no artifical measures are taken to assure their regeneration. 3 . On the basis of historical development and present situation of forest commuties in Longya Mt. and the conclusions reached in this study, the forest park could be logically divided into mafor scenery, transitional or buffer and production areas. Each area should be appropriately managed according to its expected purposes.