华中农业大学学报
華中農業大學學報
화중농업대학학보
JOURNAL OF HUAZHONG AGRICULTURAL UNIVERSITY
2001年
1期
67-72
,共6页
王鹏程%庄尔奇%涂炳坤%周志翔%刘宗友%刘小宇%皮忠来
王鵬程%莊爾奇%塗炳坤%週誌翔%劉宗友%劉小宇%皮忠來
왕붕정%장이기%도병곤%주지상%류종우%류소우%피충래
马尾松%削度方程%材种出材率表
馬尾鬆%削度方程%材種齣材率錶
마미송%삭도방정%재충출재솔표
以湖北省马尾松为研究对象,在分析其干形的基础上,提出削度模型,进行了分析、比较。结果表明:Sohmacher所建立的削度模型具有较好预估能力,在此削度模型的基础上,建立了精确的商品材出材率估测系统,该系统可估计马尾松树干上任意直径的干长,任意高度处直径,商品材积及不同材种出材率,并用该系统编制了湖北省马尾松二元材种出材率表。
以湖北省馬尾鬆為研究對象,在分析其榦形的基礎上,提齣削度模型,進行瞭分析、比較。結果錶明:Sohmacher所建立的削度模型具有較好預估能力,在此削度模型的基礎上,建立瞭精確的商品材齣材率估測繫統,該繫統可估計馬尾鬆樹榦上任意直徑的榦長,任意高度處直徑,商品材積及不同材種齣材率,併用該繫統編製瞭湖北省馬尾鬆二元材種齣材率錶。
이호북성마미송위연구대상,재분석기간형적기출상,제출삭도모형,진행료분석、비교。결과표명:Sohmacher소건립적삭도모형구유교호예고능력,재차삭도모형적기출상,건립료정학적상품재출재솔고측계통,해계통가고계마미송수간상임의직경적간장,임의고도처직경,상품재적급불동재충출재솔,병용해계통편제료호북성마미송이원재충출재솔표。
On the basis of analysing trunk shape of masson pine in Hube
i Province, the taper functions were producded and analysed and compared.The results showed that the taper function which was established by Sohmacher had better ability of estimation.On the basis of this taper function, a precise merchantable volume yielding rate system was established. This system can estimate the height on a certain diameter of the tree, the diameter of the tree on a certain height of the trunk, merchantable volume and various merchantable volume yielding rate. The merchantable volume yielding rate table of massion pine in two factors in Hubei Province was established for the part of this system.