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杉木是我国南方的重要速生用材树种。它生长快、材质好、用途广,深受群众喜爱。我国的黔东南、湘西南、桂北、粤北、赣南、闽北及浙南等地的红壤、红黄壤、黄壤地区,为杉木的中心产区。这些地区,气侯温和,雨量充沛,适宜杉木的生长发育。我省苏南丘陵山区为杉木分布的北绿地区,与中心产区相比,年降雨量偏少,温湿度偏低,且土壤条件较差,因此,解放后为了迅速解决地方用材自给问题,虽然多次掀起发展杉木生产的热潮,造林面积目前也达50万亩左左,但生长较好的却不多,大多形成低产的“小老树”。 近年来,为了进一步摸索杉木的生长规律和影响其生长的主要土壤因子,以便为我省今后杉木造林地的选择提供可靠的科学依据,对现有的杉木林提出合理的经
Chinese fir is an important species of fast-growing timber in southern China. It grows fast, good material, wide use, loved by the masses. China’s southeastern, southwestern Hunan, northern Guangxi, northern Guangdong, southern Jiangxi, northern Fujian and southern Zhejiang and other places of red soil, red and yellow soil, yellow soil area, fir center. These areas, mild climate, abundant rainfall, suitable for the growth and development of fir. In the northern part of the province, the hilly area of southern Jiangsu is a north-green area where Chinese fir is distributed. Compared with the central producing areas, annual rainfall is less, temperature and humidity are lower and soil conditions are worse. Therefore, in order to solve the problem of self- Although the upsurge in the development of fir production has been set off many times, the area of afforestation now stands at about 500,000 mu, but not so much growth has been made, mostly resulting in the “small old tree” with low yield. In recent years, in order to further explore the law of Chinese fir growth and affect the growth of the main soil factors in order to provide reliable scientific basis for the future selection of fir plantation in our province, the existing Chinese fir plantations to provide a reasonable