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我们对江西大岗山丘陵区杉木人工林生产的生态特性、净生产量及生产力等进行了研究分析,为寻求杉木人工林合理的经营途径,提供科学依据。一、林分概况试验是在江西大岗山山下林场陂元杉木人工林中进行的。该地位于中亚热带东部,罗霄山北端武功山余脉,属丘陵地形。调查林分为12年生的杉木人工林,初植密度为1530—3345株/ha,土壤为页岩上发育起来的黄红壤,土层80—150cm,腐殖质层(A+AB)厚度为10—50cm,海拔高度130—220m,坡向东南,坡度30°,主要林下植被为:杜茎山、紫珠、柃木、黄瑞木、芒萁、狗脊蕨等。
We conducted a study on the ecological characteristics, net production and productivity of Cunninghamia lanceolata plantations in the hilly area of Dagangshan Mountain in Jiangxi Province, and provided a scientific basis for seeking a reasonable management approach for Cunninghamia lanceolata plantations. First, the general situation of the forest test in Dagangshan forest farm Yong Yuan Chinese fir plantation carried out. The site is located in the eastern subtropics, the northern tip of Mount Wusong Mountains Wugongshan, is a hilly terrain. The survey was conducted on 12-year-old Chinese fir plantations with initial planting density of 1530-3345 plants / ha, yellowish red soil developed on shale soil, 80-150cm soil layer, and A + AB thickness of 10- 50cm, altitude 130-220m, slope to the southeast, slope 30 °, the main undergrowth vegetation: Du stem, purple beads, Alder, Huang Ruimu, Manglietia, dog ridge fern.