防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2014年
12期
13-14
,共2页
小黑杨%造林方式%生物量模型
小黑楊%造林方式%生物量模型
소흑양%조림방식%생물량모형
Populus simonii ×P .nigra%afforestation methods%biomass model
以青年林场不同造林方式的小黑杨为研究对象,采用树干解析和收割的方法获取插条、母根和萌蘖造林的林分生物量实测数据,利用 SPSS18.0拟合3种造林方式的小黑杨生物量模型,其结果表明:插条和母根造林的小黑杨选取以 D 1.3自变量的 Logistic 方程,萌蘖方式造林的小黑杨选取以 D 1.3为自变量的幂函数进行生物量估算可以满足精度要求。
以青年林場不同造林方式的小黑楊為研究對象,採用樹榦解析和收割的方法穫取插條、母根和萌蘗造林的林分生物量實測數據,利用 SPSS18.0擬閤3種造林方式的小黑楊生物量模型,其結果錶明:插條和母根造林的小黑楊選取以 D 1.3自變量的 Logistic 方程,萌蘗方式造林的小黑楊選取以 D 1.3為自變量的冪函數進行生物量估算可以滿足精度要求。
이청년림장불동조림방식적소흑양위연구대상,채용수간해석화수할적방법획취삽조、모근화맹얼조림적림분생물량실측수거,이용 SPSS18.0의합3충조림방식적소흑양생물량모형,기결과표명:삽조화모근조림적소흑양선취이 D 1.3자변량적 Logistic 방정,맹얼방식조림적소흑양선취이 D 1.3위자변량적멱함수진행생물량고산가이만족정도요구。
Taking Populus simonii ×P .nigra afforested by different methods in Qingnian Forest Farm as research object,the measured data of stand biomass for cuttings,mother roots & sprout afforestation by stem analysis and reap were obtained,fitting biomass model of Populus simonii ×P .nigra with three kinds of afforestation methods by using SPSS18.0.Result shows that:the Logistic equation model of D 1 .3 independent variable for Populus simonii ×P .nigra afforested by cuttings & mother root afforestation ,the power function of D 1 .3 independent variable for Populus simonii ×P .nigra afforested by sprout afforestation ,both were conducted to estimate the biomass ,which can meet the accuracy requirements.