萌芽杉木与酸枣混交林生长与生物量研究初报  

Preliminary Report on the Growth and Biomass of Sprout Cunninghamia lanceolata andChoerospondias axillaris Mixed Forest

作　　者：陈顺和 

机构地区：[1]福建省明溪县城关林业站,福建明溪365200

出　　处：《福建林业科技》2002年第4期44-46,共3页Journal of Fujian Forestry Science and Technology

摘　　要：在21年生、13地位指数的第1茬杉木林采伐迹地上,通过不炼山、保留杉木萌芽条、套种酸枣更新的5年生萌芽杉木酸枣混交林的生长状况与生物量进行了研究,结果表明:二茬萌芽更新的杉木酸枣混交林生长良好,杉木的平均胸径、树高、单株材积、地上部分单株生物量分别为5 6cm、4 5m、0 00817m3、4 788kg·株-1,与萌芽更新的杉木纯林相比,均略有提高,分别比杉木纯林增加3 70%、1 12%、3 29%、2 79%;混交林中酸枣的平均胸径、树高、单株材积、地上部分单株生物量分别为5 0cm、6 10cm、0 00754m3、3 787kg·株-1,除了平均高外,均小于杉木;混交林总蓄积量和乔木层总生物量分别为24 884m3·hm-2和13 32t·hm-2,分别是纯林的2 29倍和2 08倍。萌芽杉木与酸枣混交林是一种生产力较高的混交模式。The results show that the second crop of Cunninghamia lanceolata and Choerospondias axillaris mixed forest with sprout regeneration grow fine,the average dbh,height,singletree volume and aboveground portion singletree biomass of C.lanceolata are 56 cm,45m,000817m3 and 4788kg per tree respectively,which all increase slightly as compared with those of pure C.lanceolata forest with sprout regeneration and respectively increase by 370%,112%,329% and 279% as compared with those of pure Clanceolata forest;those of C.axillaris in the mixed forest are 50 cm,610m,000754m3 and 3787 kg per tree respectively,all smaller than those of C.lanceolata except the height of C.axillaris;the total mixed forest stocking and total arbor layer biomass are 24884 m3 per hm2 and 1332 t per hm2 respectively,229 times and 208 times as large as those of the pure forest respectively.The mixed forest is a mixed pattern whose productivity is relatively high.

关 键 词：萌芽杉木 酸枣 混交林 生长 生物量 

分 类 号：S791.27[农业科学—林木遗传育种] S665[农业科学—林学]