光叶楮沿海造林当年生物量调查  

Investigation of the former year biomass of Broussonetia papyrifera(L.) Vent.for coast afforestation

作　　者：蒋泽平[1] 梁珍海[1] 张敏[1] 杨永康 包建英 蔡洪达 

机构地区：[1]江苏省林业科学研究院,江苏南京211153 [2]江苏海门市林业站,江苏海门226100

出　　处：《江苏林业科技》2008年第4期4-6,共3页Journal of Jiangsu Forestry Science & Technology

基　　金：国家"十一五"科技支撑项目"海洋渔业与滩涂保护及高效开发关键技术研究与示范"子专题研究内容(2006BAD09A04-01-06);江苏省农业三项工程项目"光叶楮引种快繁及栽培示范推广"[SX(2005)124]研究内容

摘　　要：对江苏海门沿海当年造林的光叶楮生长及生物量调查结果表明:3种立地条件下,造林密度为1 m×1 m时,在林业站苗圃脱盐立地(全盐量0.046%,pH8.15)地上部分生物量干重最大,为8 981.40 kg/hm2,其次在盐碱地东灶港海堤(全盐量0.286%,pH9.09),为6 478.20 kg/hm2,最差在杨树混交林地(全盐量0.098%,pH9.05)为1 846.95 kg/hm2。地下部分的规律与地上部分类似,干重最大是林业站苗圃,为5 158.65 kg/hm2,其次在东港海堤,为1 948.95 kg/hm2,最差在杨树混交林地,为662.40 kg/hm2。总生物量干重最大在林业站苗圃,为14 140.20kg/hm2,其次在东灶港海堤,为8 427.195 kg/hm2,最差在杨树混交林地,为2 509.39 kg/hm2。根系主要分布在10cm浅土层。The growth condition and biomass of one year old Broussonetia papyrifera plantation was investigated in Haimen, Jiangsu province. The results showed that the aboveground biomass was the highest （8 981.40 kg/hm^2） in forestry station nursery （ salinity 0. 046%, pH 8.15 ）. At Dongzaogang seawall site （ salinity 0. 286%, pH 9. 09 ）, the biomass of Broussonetia papyrifera plantation was 6 478.20 kg/hm^2 which was taken the second place. The biomass of Brussonetia papyrisfera mixed Poplar forest （ salinity 0. 098% ,pH 9. 05 ） was the lowest, which was only 1 846.95 kg/hm^2. The belowground biomass was similar to that of the aboveground. The maximum of root dry weight was found in forestry station nursery （ 5 158.65 kg/hm^2 ） ,which was followed by Dongzaogang seawall （ 1 948.95 kg/hm^2 ） ,and the biomass of Broussonetia papyrifera mixed Poplar forest was the lowest （ 662.40 kg,/hm^2 ）. Compared the dry weight of the total biomass, the biomass of Broussonetia papyrifera in forestry station nursery was the highest among the three sites which reached 14 140. 20 kg/hm^2. The biomass of Broussonetia papyrifera in Dongzaogang seawall （8 427.19 kg/hm^2） was higher than that of Broussonetia papyrifera mixed Poplar forest 2 509.39 kg/hm^2. The roots distributed mainly at depth of 0 - 10 cm soil layer.

关 键 词：光叶楮 沿海立地 生物量 

分 类 号：S727.2[农业科学—林木遗传育种]