摘要
对白桦16个种源的1年生苗高、地径进行方差分析．用各种源的苗高、地径与地理、气候因子做相关分析、结果表明：各种源间的苗高、地径差异极显著．苗高、地径与各种源的地理纬度呈负相关．与经度呈正相关。用16个种源的苗高、地径聚类分析．结合各种源的地理、气候因素。可将16个白桦种源区划为5个种源区。即六盘山及祁连山种源区、辽东及长白山种源区、小兴安岭及完达山种源区、大兴安岭种源区和新疆北部种源区，根据白桦苗期的生长表现。初步选择出最佳种源为汪清、凉水种源。
By means of making the standard deviation analysis on the height and base diameter of one- yearold seedlings of 16 provenances of Betula platyphylla as well as the correlative analysis on the height.base diameter and the geographic and climatic factors. the results showed that there are significantvariations in the height and base diameter of seedlings of different provenances; the height and basediameter of seedlings are negatively correlated with longitude and latitude. Based on the classifiedanalysis on the height and base diameter of seedlings of l6 provenances and combined with thegeographic and climatic factors. 16 provenances are divided into 5 provenance districts: Liupanshan andQilianshan provenance districts. Liaodong and Changbai mountains provenance districts. Xiaoxing'anlingand Wanda mountains provenance districts. Daxing' anling provenance districts. Xinjiang northernprovenance districts. Wangqing and Liangshui are preliminarily considered the optimal proxenance ofBetula platyphylla Suk. on seedling stage.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1999年第6期1-3,共3页
Journal of Northeast Forestry University
基金
国家"九二""科技攻关专题!96-011-02-02-02
关键词
白桦
种源试验
地理变异规律
最佳种源选择
Betula platyphylla Suk
Provenance trial
Rule of geographic variation
Optimal provenance selection
