检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:韦昌幸 秦武明[2] 张党权[3] 严理[2] 王凤琴 WEI Changxing;QIN Wuming;ZHANG Dangquan;YAN Li;WANG Fengqin(Guangxi State-owned Gaofeng Forest Farm,Nanning,Guangxi 530001,China;Forestry College of Guangxi University,Naning,Guangxi 530004,China;Hunan Provincial Key Laboratory of Forestry Biotechnology,Central South University of Forestry and Technology,Changsha,Hunan 410004,China)
机构地区:[1]广西国有高峰林场,广西南宁530001 [2]广西大学林学院,广西南宁530004 [3]中南林业科技大学/林业生物技术湖南省重点实验室,湖南长沙410004
出 处:《林业与环境科学》2020年第3期48-54,共7页Forestry and Environmental Science
基 金:国家林业公益性行业科研专项(201204610);湖南省科技计划重点项目(2014FJ2004)。
摘 要:以广西南宁市国有高峰林场48 a生木荷Schima superba人工林为研究对象,探讨其生长规律、生长模型。结果表明:木荷人工林平均胸径为20.68 cm,胸径生长速生期为0~12 a,胸高形数为0.48~3.33,符合培育大径材要求,胸径最优生长模型为威布尔(Wei bull)模型;平均树高为23.54 m,树高生长速生期为0~14 a,树高生长模型为二次曲线(Quadratic)模型;平均材积为0.3598 m3,材积生长模型为威布尔(Wei bull)模型。Based on the investigation on 48-year-old Schima superba plantation in Gaofeng state-owned forset farm in Nanning,Guangxi,the growth regularity and growth model were studied.The results showed that the average DBH of S.superba plantation was 20.68 cm,the fast growing periods for DBH was from 0 to 12 years,the breast-height form factors of S.superba trees was 0.48~3.33,qualifing for cultivation requirements of big-diamer trees.The optimal growth models for DBH are Wei bull equation.The average tree height was 23.54 m,the fast growing periods for tree height was 0 to 14 years,The potimal growth models for tree height is Quadratic equation.The average volume was 0.3598 m3,and the volume growht trend fits the Wei bull equation.
分 类 号:S792.99[农业科学—林木遗传育种]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28