不同种源麻栎生长性状的地理变异  

Geographical variation of growth traits among different Quercus acutissima provenances

作　　者：苑海静 成向荣[1] 虞木奎[1] 汪阳东[1] 邰建武 张春祥 YUAN Hai-jing;CHENG Xiang-rong;YU Mu-kui;WANG Yang-dong;TAI Jian-wu;ZHANG Chun-xiang(East China Coastal Forest Ecosystem Long-term Research Station,Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou 311400,China;Hong-yashan Forest Farm of Chuzhou City,Chuzhou 239000,Anhui,China)

机构地区：[1]中国林业科学研究院亚热带林业研究所,华东沿海防护林生态系统国家定位观测研究站,杭州311400 [2]滁州市红琊山国有林场,安徽滁州239000

出　　处：《应用生态学报》2021年第8期2791-2799,共9页Chinese Journal of Applied Ecology

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2018ZB001-3);国家林业公益性行业科研专项(200704034)资助。

摘　　要：本研究在江西永丰、浙江开化和安徽滁州3个试验点,以32个种源的麻栎试验林为对象,分析了不同种源间林木生长变异、主要经济性状(地上单株生物量)随林龄的动态变化,并基于AMMI模型进行生长性状稳定性分析和优良种源选择。结果表明:3个试验点麻栎不同种源间的树高、胸(地)径和地上单株生物量均具有显著差异。麻栎地上单株生物量受地点、种源、种源×地点交互作用的显著影响,其中地点对生长变异影响最大,其次为种源和种源×地点。不同地点麻栎苗期(1~3年生)和幼林期(4~11年生)优良种源的选择结果具有较大差异。根据第11年地上单株生物量分别筛选了在当地表现较好的种源,江西永丰试验点7个优良种源,高出试验点均值15.6%~57.8%;浙江开化试验点7个优良种源,高出试验点均值19.2%~45.2%;安徽滁州试验点8个优良种源,高出试验点均值24.9%~63.3%。综合生长量和稳定性表现,筛选出4个适于3个地理区域短轮伐期炭用林培育的优良种源,这些种源地上单株生物量均值为36.55 kg,稳定性参数均值为0.97。The variations in plant growth of 32 Quercus acutissima provenances in three sites(Yongfeng, Jiangxi;Kaihua, Zhejiang and Chuzhou, Anhui) were studied. The AMMI model was used to analyze the stability of growth traits and to select the best provenances. The results showed that tree height, diameter at breast(ground) height, and aboveground biomass(AGB) per individual of the provenances were significantly different in the three sites. The AGB per individual was significantly affected by site, provenance, and the interaction of provenance × site. Site had the greatest impact on the variation of tree growth, followed by provenance and provenance × site. The growth performance of these superior provenances in different sites varied greatly in the seedling stage(1-3 years old) and young forest stage(4-11 years old). Based on the AGB per individual in the 11 st year, the best provenances were selected in each site. Seven superior provenances of Yongfeng, Jiangxi were selected, with the average AGB per individual increased by 15.6%-57.8% compared with the ave-rage value. Seven superior provenances of Kaihua, Zhejiang were selected, with the average AGB per individual increased by 19.2%-45.2%. Eight superior provenances of Chuzhou, Anhui were selected, with the average AGB per individual increased by 24.9%-63.3%. According to the growth performance and stability, four superior provenances were selected to develop short-rotation charcoal forest cultivation across three sites, with an average AGB per individual of 36.55 kg and an average stability parameter of 0.97.

关 键 词：麻栎 种源 生长性状 地理变异 稳定性 

分 类 号：S792.181[农业科学—林木遗传育种]