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造林密度虽然不象整地、栽植等措施一样直接影响着造林成活率的高低,但却直接关系着造林成本,密切联系着造林后的营林活动和经济效益。造林密度看似最简单的一项造林技术措施,可是在实际应用中又极难掌握的恰到好处。通过对三十余年来造林历史的回顾,不难发现在造林密度上有着严重的失误,值得认真反思。一九五五年林业部颁布的《国营造林技术规程》规定“全面造林的密度,一般每公顷应有六千至一万二千个种植点(每亩400～800株)……在这个幅度内,生长较快的树种可较少,生长速度中庸或适
Afforestation density, though not directly affecting the survival rate of afforestation, is directly related to the cost of afforestation. It is closely related to afforestation activities and economic benefits after reforestation. Afforestation density appears to be the easiest afforestation technology measures, but in practice it is extremely difficult to grasp just right. Through reviewing the past three decades of reforestation history, it is not difficult to find that there are serious mistakes in afforestation density, and it is worth serious reflection. The Technical State of Forestation Provisions issued by the Ministry of Forestry in 1955 stipulates that "the density of afforestation should be generally 6,000 to 12,000 (about 400 to 800 plants per hectare) per hectare ... At this rate Within the rapid growth of species can be less moderate growth rate or fitness