DB35T 1876-2019 主要用材樹(shù)種出材量測(cè)算方法標(biāo)準(zhǔn)

DB35DB35/T1876—2019主要用材樹(shù)種出材量測(cè)算方法Acalculatingmethodstandardonoutputvolumeofmaintimbertreespecies福建省市場(chǎng)監(jiān)督管理局發(fā)布*I 1 1 1 1 2 2 7 7 1GB/T20381—2006材種出材GB/T26424—2010森林資源規(guī)劃DB35/T1823—2019主要樹(shù)種材種出材量timberassortmentou材種出材率timberassortmen二元材種出材率表Binarytimberassortment二元材種出材率模型Binarytimberassortmentf1：經(jīng)濟(jì)材表達(dá)式。2f2：規(guī)格材表達(dá)式。f3：非規(guī)格材表達(dá)式。f4：大原木表達(dá)式。f5：中原木表達(dá)式。f6：小原木表達(dá)式。f7：小徑材表達(dá)式。f8：短小材表達(dá)式。H：樹(shù)高（m）。P1：經(jīng)濟(jì)材出材率（%）。P2：規(guī)格材出材率（%）。P4：大原木出材率（%）。P5：中原木出材率（%）。P6：小原木出材率（%）。P7：小徑材出材率（%）。P8：短小材出材率（%）。2大于或等于2大于或等于2P1=P2+P3 P2=P4+P5+P6 P3=P7+P8 32f1...............................2P85.630964 13.7826009/D0.4514445/H0.7721308P89.310003 17.2980201/D0.0001412/H1.4080739P80.706598 14.5135562/D0.7087467/H0.7760808PPf2..........................(1f2.........................(1f2.............................(12)杉木非規(guī)格材（D≤15cm）出材率按照式（13）進(jìn)行計(jì)算，杉木非規(guī)格材（D＞15cm）出材率按4f3.......................(13)10.0271596D15H13f3.......................(14)10.0734357D15H13馬尾松非規(guī)格材（D≤15cm）出材率按照式（15）進(jìn)行計(jì)算，馬尾松非規(guī)格材（D＞15cm）出材f3...........................(15)10.0734447D1510.0734447D15H13闊葉樹(shù)非規(guī)格材（D≤15cm）出材率按照式（17）進(jìn)行計(jì)算，闊葉樹(shù)非規(guī)格材（D＞15cf3.......................(17)10.0001295D15H13f3.......................(18)10.1949898D15H136.4.1規(guī)格材中的大、中、小原木出材P=.......................P=.......................P=.......................f4........................(22)f4.........................(23)5f4......................(24)杉木中原木（D≤31cm出材率按照式（25）進(jìn)行計(jì)算 f510.0000477D315.0611372H230.5151585 f510.0228386D312.1645807H230.4881761 f5.......................(27)10.001216D31H23 f510.2542468D310.9202158H230.1074674 闊葉樹(shù)中原木（D≤27cm）出材率按照式（29）進(jìn)行計(jì)算，闊葉樹(shù)中原木（D＞27f5....................10.0169364D27H19f5.....................10.0405514D27H19杉木小原木（D≤23cm）出材率按照式（31）進(jìn)行計(jì)算，杉木小原木（D＞23cm）出材率按照式f6.......................10.0053727D23H15f6........................10.162501D23H15馬尾松小原木（D≤23cm）出材率按照式（33）進(jìn)行計(jì)算，馬尾松小原木（D＞23cm）出材率按6f6.......................(33)10.0528057D23H15f6.......................(34)10.1411708D23H15 f610.0001918D214.5204183H181.1195065 f6......................(36)10.1092727D21H186.5.1非規(guī)格材中的小徑材和短小材出P=........................P=........................杉木小徑材（D≤15cm）出材率按照式（39）進(jìn)行計(jì)算，杉木小徑材（D＞15cm）出材率按照式f7.......................(39)10.0744065D15H13f7.......................(40)10.0823452D15H13馬尾松小徑材（D≤15cm）出材率按照式（41）進(jìn)行計(jì)算，馬尾松小徑材（D＞15cm）出材率按 f710.005291D152.1535216H130.9408122 f7.......................(42)10.1101907D15H137 f710.0004259D153.4544403H130.4707653 f7.......................10.11067D15H13f8...........................f8.........................f8..........................根據(jù)每個(gè)徑階中值和徑階平均高，按照DB35/T1823—2019求出各徑階的單株平均材積，MjNiViPij..................................(48)8Mj——某種規(guī)格的材種出材量，單位為立方米（m3K——徑階數(shù)，單位為厘米（cm10.0000706094D1.801671H0.997998 20.000070728D1.874518H0.908949 V30.0000685634D1.933221H0.867885 9株m6386742株m1499753211258株m986421628488