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作 者:李传荣[1] 国庆喜[2] 刘丽娟[2] 王凤友[2]
机构地区:[1]山东农业大学林学院,泰安271018 [2]东北林业大学
出 处:《东北林业大学学报》2000年第3期57-60,共4页Journal of Northeast Forestry University
基 金:国家"九五"攻关课题!"红松福建柏珍贵建筑材良种选育及培育技术研究"子专题
摘 要:采用了SPACE模型模拟了小兴安岭南坡人工栽植红松的动态过程。在给定初始条件后,模拟了自然演替和实行采伐控制的林分断面积、径阶、年龄和采伐收益200a的变化。根据预测的结果,自然演替的人工林经80a便形成绝对的红松纯林,而经过动态采伐控制可在40a进入混交状态,在80a后形成稳定的混交林状态,相应带来一定的收益,形成的林分稳定。对人工林进行适当经营,可使红松尽早进入稳定的针阔混交林状态,达到可持续经营并发挥最佳的生态效益。Modified SPACE Model was used to simulate the dynamic process of planted stand of Korean pine on the south of Xiaoxing'anling. Under the given initial conditions, the variation of stand section area, diameter size, age, and effect from cutting during 200 years were simulated under natural succession and dynamic cutting respectively. The results show as follows: planted forest under natural succession will change to absolute pure Korean pine forest after eighty years, while under dynamic cutting it will change to mixed stage after forty years, and to steady mixed stage after 80 years, meantime some benefit can be obtained. Appropriate management will promote Korean pine forest into mixed broad-leaved forest and achieve the goals of sustainable management and the best ecological efficiency.
分 类 号:S758.4[农业科学—森林经理学] S791.247[农业科学—林学]
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