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地处浙北黄土丘陵的安吉县安城公社龙坝大队,社员烧柴比较紧张。过去曾采用疏雄马尾松,通过打松枝方法解决烧柴困难,由手松林郁闭慢,长势弱,薪柴产量很低。从1976年开始,该大队林场利用山顶、山脊、土层浅薄不适宜栽杉、种茶的荒山,密植马尾松(株行距2×2市尺或2.5×1.5市尺,每亩栽1500～1600株)作为薪炭林,取得较好的经济效果。该场先后共营造密植马尾松薪炭林160亩,据测定,5年生的马尾松幼林,平
Anba County, Loess Plateau is located in Anji County Commune Longba Brigade, members of firewood more nervous. In the past, sparse pine was used to solve the problem of burning firewood by playing the loose branch method. The pine forests were slow and weak, and the output of firewood was very low. From 1976 onwards, the brigade forest use of the top, ridges, shallow soil unsuitable for planting fir, tea planting barren hills, close planting masson pine (line spacing 2 × 2 city feet or 2.5 × 1.5 city scale, planted acres per acre 1500 ~ 1600 Strain) as a fuelwood, get better economic results. The field has a total of 160 acres of dense planting Pinus massoniana forest, according to the determination of 5-year-old masson pine forest, flat