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作 者:吴可[1] 殷鸣放[1] 周永斌[1] 郭元涛 刘月洋[1] 殷炜达[3] 商士达[1] 吴春雷[1]
机构地区:[1]沈阳农业大学林学院,辽宁沈阳110866 [2]辽宁省白石砬子自然保护区,辽宁丹东118000 [3]东京大学创成科学研究所
出 处:《西北林学院学报》2010年第6期203-206,共4页Journal of Northwest Forestry University
基 金:国家林业局948项目(2009-4-47)
摘 要:为了使保护区森林资源能够得到合理有效的监测和保护,利用白石砬子国家级自然保护区固定样地调查的数据,计算各树种在1979—2008年各林龄的平均每公顷蓄积量,绘制森林蓄积生长曲线,选择理论生长方程,拟合不同树种的模型参数。根据理论生长方程计算不同树种各林龄的单位面积蓄积量理论值,用单利式计算森林蓄积连年生长率。In order to effectively and rationally monitoring and protecting forest resouces in nature reserve, based on the data surveyed from forest resource planning and design in Liaoning Provincial state-owned forest farms, the average volumes per hectare of forest at different ages in different plots during 1979-- 2008 were calculated to describe the general level of the forest volume growth percentage in successive years, the forest volume growth diagrams was drawn, and the growth patterns by establishing a mathe- matical model were obtained. Consequently, we obtained the successive-year growth percentage through the calculation of theoretical growth of forest volume.
分 类 号:S758.52[农业科学—森林经理学]
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