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前言赣南位于江西的南端,亚热带南缘,属于湿性型常绿阔叶林和落叶阔叶林带。这带主要生长杉木、马尾松、甜槠、檫树、樟树、毛竹、枫香、楠木、青柞槭、油桐、油茶等一千多种树。由于气候因素、土地状况和人为影响,以致树种彼此掺杂,形成了以常绿阔叶树为主的各种类型的天然混交林和人工混交林。因此,混交林是该区森林的重要群系。为了加速林区建设,我们于1980年8月到瑞金、广昌、赣县、于都、会昌、安远、上犹、崇义、信丰等县开展用材混交林植被调查研究。设标准地20块,15.64亩,其中天然混交林8块,5.46亩;人工混交林6块,4.92亩;人工纯林6块,5.26亩。重点调查了以杉木为主的杉槠、
Foreword Gannan is located in the southern tip of Jiangxi Province, the southern margin of the subtropics, belonging to wet-type evergreen broad-leaved forest and deciduous broad-leaved forest belt. This belt mainly grows more than 1,000 kinds of trees such as Chinese fir, Masson pine, sweet 槠, 檫 tree, camphor, bamboo, sweetgum, nanmu, green oak maple, tung tree and camellia. Due to climatic factors, land conditions and man-made influences, tree species are doped with each other, forming various types of natural mixed forests and mixed plantations dominated by evergreen broad-leaved trees. Therefore, mixed forest is an important group of forest in this area. In order to speed up the construction of forest areas, we conducted surveys on mixed plantation forests in August 1980 with Ruijin, Guangchang, Ganxian, Yudu, Huichang, Anyuan, Shangyou, Chongyi and Xinfeng counties. Set standard 20, 15.64 acres, of which 8 natural mixed forest, 5.46 acres; 6 artificial mixed forest, 4.92 acres; artificial pure forest 6, 5.26 acres. Focuses on the fir-based fir cedar,