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:王晶晶[1] 亢新刚[1] 高延[2] 冯吉祥[2]
机构地区:[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]吉林省汪清林业局,吉林汪清133200
出 处:《西北林学院学报》2011年第5期192-197,235,共7页Journal of Northwest Forestry University
基 金:林业公益性行业专项课题(200804027)
摘 要:通过对汪清林业局金沟岭林场73个林班,1 333个小班的中的183个生态公益林小班调查数据进行分析,阐述了金沟岭林场生态公益林的特点,并将金沟岭林场的生态公益林根据森林起源、树种、立地类型和经营目的4个划分依据划分为34个经营类型,为森林分类经营措施的制定和实施打下了基础。Related data acquired from 183 non-commercial sub-compartments,which are among 73 compartments and 1 333 sub-compartments in Jingouling Forest Farm administrated by Wangqing Forestry Bureau were analyzed to figure out the characteristics of the non-commercial forests in the area.Thirty four management types were classified based on origin of the forest,tree species in the forest,site type and management target.The results would provide materials for manipulating and implementing management measures of the forests.
分 类 号:S757.9[农业科学—森林经理学]
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:216.73.216.117