赣南北缘寒冷地区引种、试种桉树报告

Report of Introduction and Planting Eucalyptus in Cold Region in Northern Area of Southern Jiangxi Province

通过对江西省宁都县引种、试种的多个桉树品系/种源的生长量及冻害调查分析,结果表明:参试品种(品系)仅本沁桉、邓恩桉和赤桉冻伤程度相对较轻,但是生长较慢;其它速生品系冻伤较重,冻伤等级均达到Ⅲ级(含以上),如巨桉、尾细桉、尾赤桉、韦赤桉、尾巨桉等。赣南北缘大规模发展速生桉树风险较大。综合考量情况下,局部地区发展速丰用材林可选择亚林巨桉、韦赤桉GY-66、尾细桉M1、DH184-1四种品系,邓恩桉、本沁桉和赤桉等较耐寒品系适宜生态公益林、园林绿化或公路旁栽种。

The growth and the frost damage of a plurality of species or provenance of Eucalyptus spp.introduced and planted in Ningdu County of Jiangxi Pronvice were investigated and analyzed in this paper.The results showed the E.benthami,E.dunnii and E.camaldulensis frostbite to a lesser extent,but they grew slower;Other fast-growing strains frostbite to a more serious extent,they reached the degree of frostbite level Ⅲ（above）,such as E.grandis,E.urophylla×E.tereticornis,E.urophylla×E.camaldulensis,E.wetarensis×E.camaldulensis,E.urophylla×E.grandis,etc.Large-scale development of fast-growing Eucalyptus in northern area of southern Jiangxi Province has higher risk.Several factors considered,development of fast growing timber in some areas can choose four species of E.grandis（come from Subtropical Forestry Research Center,Chinese Academy of Forestry）,E.wetarensis×E.camaldulensis GY-66,E.urophylla×E.tereticornis M1,E.urophylla×E.camaldulensis DH184-1.E.benthami,E.dunnii,E.camaldulensis and other more cold-resistant Eucalyptus species were suitable for the development of ecological forest,landscaping or planting beside the road.