贵州林业科技
貴州林業科技
귀주임업과기
GUIZHOU FORESTRY SCIENCE AND TECHNOLOGY
2011年
2期
6-9
,共4页
林分蓄积%海拔%列联表分析%对数线性模型
林分蓄積%海拔%列聯錶分析%對數線性模型
림분축적%해발%렬련표분석%대수선성모형
forest stock%altitudes%residual analysis%log- linear regression model
本文研究区域位于天然林保护工程重点区域大兴安岭林区，收集大兴安岭森林资源连续清查第6次复查232块样地资料，将其整理成列联表，做列联表分析，进行卡方检验、剩余分析、对数线性模型拟合。结果表明，此区域落叶松林分在低海拔分布较广，但蓄积量处于相对低水平，主要是此区域内林分受人为干扰较严重而致。
本文研究區域位于天然林保護工程重點區域大興安嶺林區，收集大興安嶺森林資源連續清查第6次複查232塊樣地資料，將其整理成列聯錶，做列聯錶分析，進行卡方檢驗、剩餘分析、對數線性模型擬閤。結果錶明，此區域落葉鬆林分在低海拔分佈較廣，但蓄積量處于相對低水平，主要是此區域內林分受人為榦擾較嚴重而緻。
본문연구구역위우천연림보호공정중점구역대흥안령림구，수집대흥안령삼림자원련속청사제6차복사232괴양지자료，장기정리성렬련표，주렬련표분석，진행잡방검험、잉여분석、대수선성모형의합。결과표명，차구역락협송림분재저해발분포교엄，단축적량처우상대저수평，주요시차구역내림분수인위간우교엄중이치。
The research area is in the Greater Hinggan Mountains, it is the key area of the natural forest protection project. The author selected 232 pieces of sample data of sixth times reviews of Greater Hinggan Mountains CFI（continu- ous forest inventory）, and arranged the data into contingency table, then analyzed it. Finally, the author did chi- square criterion, residual analysis and log- linear regression model fitting. The results showed that the Larix gmelinii （ Rupr. ） Rupr. distributed extensively in lower altitudes of this area is low. And the forest stock is relative low. Because the anthropogenic disturbances is serious in the area. The results of this study have the vital significance to forest man- agement.
