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杉木是我省予南地区主要造林树种之一。为了研究杉木人工林的抚育间伐技术,提高杉木营林技术水平,我们于1973年在黄柏山林场分别不同立地条件,不同密度建立了三组十一块总面积0.66公顷的杉木间伐固定观测标准地。1983年6月进行了皆伐。现将十年研究结果报告如下: 一、研究地区概况黄柏山林场位于河南省商域县境内的大别山北坡,地理座标东经115°13′—115°
Chinese fir is one of the main afforestation species in the south of our province. In order to study the thinning technology of Chinese fir plantation and improve the technical level of Chinese fir plantation, we established three sets of eleven fixed observation standards for fir thinning with a total area of 0.66 hectare at different site conditions and different densities in Huangbai Mountain Forest Farm in 1973 . Clearcut was conducted in June 1983. Now report the results of the ten-year research as follows: I. Overview of the Study Area The Huangbaishan Forest Farm is located on the northern slope of the Dabie Mountain in Shangdi County, Henan Province. Its geographical coordinates are 115 ° 13’-115 ° east longitude