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湿地松原产美国东南部,是美国南方组成大面积森林的主要树种。吉安市青原山1948年引种栽植的湿地松,现林令33年,面积50亩,每亩30株,分为8块林分。最大优势木高22m,胸径44cm。林分平均胸径25cm,平均树高15.9m,每亩蓄积量13.5m~3,树干通直园满,富含树脂,松香质量好。为了摸索湿地松的松脂分泌特性,我们从1977至1979年,对湿地松的松脂分泌特性进行了采割试验,初步搞清了泌脂待性,现简述如下
Slash pine originating in the southeastern United States, is the main species of large-scale forests in the southern United States. Introduced in 1948 in Ji’an City, Qingyuan Mountain planted Pinus elliottii, now Lin order 33 years, an area of 50 acres, 30 per acre, divided into 8 stands. The biggest advantage of wood height 22m, diameter 44cm. The average diameter of the stands is 25cm, the average height of the tree is 15.9m, the stock volume per acre is 13.5m ~ 3, the trunk is straight and full, rich in resin, and rosin is of good quality. In order to explore the Pinus elliottii Rosselic secretion characteristics, we from 1977 to 1979, we studied the Pinus elliottii Rosin secretion characteristics of the cutting test, initially clarified the secretion of fat waiting, are summarized as follows