美国薄壳山核桃引种幼龄期生态适应性的初步研究  

Ecological Adaptation of the Introduced Carya illinoinensis at Juvenile Phase

作　　者：左继林[1] 詹荣达 张时煌[3] 

机构地区：[1]江西省林业科学院,江西南昌330013 [2]婺源县林业局,江西婺源333200 [3]中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室,北京100101

出　　处：《江西林业科技》2013年第6期11-13,26,共4页Jiangxi Forestry Science and Technology

基　　金：中国科学院知识创新项目"南方丘陵区生态经济林建设及其可持续性模式"(项目编号:KSCX2-EW-B-1)

摘　　要：对5个美国薄壳山核桃引种吉泰盆地的物候期进行观测,并连续两年对其成活率、保存率与形态指标生长量及虫害防治情况进行调查。结果表明:①不同核桃品种之间的物候期存在差异,芽萌动期极差值最大,其次为芽开裂期、展叶期;物候期最早的是赣选4号,最晚的则是赣选5号;②赣选2号、4号成活率与保存率较高,赣选2号与4号的树高增长最快,赣选1号树高增长较慢;而地径增长当年不同品种的差异不显著,翌年的差异显著;冠幅面积年均增长量表现为赣选4号>赣选5号>赣选2号>赣选3号>赣选1;③综合比较初步认为赣选4号与赣选2号较适宜在泰和引种栽培。The phenological period of five Carya illinoinensis were observed after it introduced at Jitai basin in this paper, and the survival rate, morphological index increment and pest control were surveyed for two consecutive years. The result showed that there were difference on the phenological phases between different C. illinoinensis varieties, the maximum difference of the time bud was the most, followed by bud stage cracking, exhibition leaf; The earliest phenological period was Ganxuan No. 4, and the latest is Ganxuan No. 5; The preserving and survival rate of Ganxuan No. 2 and Ganxuan No. 4 was higher, the height growth of Ganxuan No. 2 and GarLxuan No. 4 was the most; and Ganxuan No. 1 was the slowest; The difference of the diameter growth between different strain was not significant; but there was significant difference at next year; The order of average annual growth amount of crown was Ganxuan No. 4〉Ganxnan No. 5〉Ganxuan No. 2〉Ganxuan No. 3〉Ganxuan No. 1; The preliminary view is Ganxuan No. 4 and Ganxuan No. 2 were more appropriate to introduce and cultivate at Jitai basin by comprehensive comparison.

关 键 词：美国薄壳山核桃 幼龄期 生态适应性 

分 类 号：S792.13[农业科学—林木遗传育种] S664.1[农业科学—林学]