南京林业大学学报(自然科学版) ›› 2017, Vol. 60 ›› Issue (01): 61-68.doi: 10.3969/j.issn.1000-2006.2017.01.010

• 研究论文 • 上一篇    下一篇

帽儿山地区樟子松优良种源的选择

徐 静,孙洪志*,郭滨德   

  1. 东北林业大学林学院生态研究中心,黑龙江 哈尔滨 150040
  • 出版日期:2017-02-18 发布日期:2017-02-18
  • 基金资助:
    基金项目:黑龙江省自然科学基金项目(C201210)
    第一作者:徐静(1063756466@qq.com)。*通信作者:孙洪志(2458928501@qq.com),研究员。

The superior provenance selection of Mongolian scotch pine (Pinus sylvestris var. mongolica)forests at Maoershan area

XU Jing, SUN Hongzhi*, GUO Binde   

  1. Center for Ecological Research, College of Forestry, Northeast Forestry University, Harbin 150040,China
  • Online:2017-02-18 Published:2017-02-18

摘要: 【目的】进一步揭示不同种源樟子松在帽儿山地区的生长差异性,选择出优良种源。【方法】以1981年采种、1982年育苗、1984年春造林到帽儿山地区的高峰、图强、卡伦山、红花尔基、罕达盖、金山、阿尔山等7个种源31年生樟子松试验林为研究对象,通过对樟子松胸径、树高、材积、冠幅、年轮宽度及保存率等6个生长性状进行方差分析、多重比较、相关性分析、主成分分析等,选择优良种源。【结果】种源间胸径达到极显著差异(P<0.01),材积和冠幅达到显著差异(P<0.05),树高没有显著差异(P>0.05); 区组间各性状均没有显著差异(P>0.05)。图强种源的年轮宽度最大(3.69 mm),保存率则最小(56.67%); 不同种源胸径、树高、材积、冠幅及年轮宽度与原产地地理气候因子之间没有显著相关性。樟子松种源各性状地理变异模式不明显,而保存率与纬度呈极显著负相关(P<0.01),与经度呈显著负相关(P<0.05),与海拔呈显著正相关(P<0.05); 主成分分析结果发现,图强种源综合指数得分最高(2.972)。【结论】31年生樟子松人工林生长性状不同种源之间存在差异,红花尔基、高峰种源生长较好; 图强种源表现最好,应用潜力大。

Abstract: 【Objective】The experiment was conducted to study the differences of growth traits among seven provenances(GF, TQ, KLS, HHEJ, HDG, JS and AES)and geographic variation to select superior provenances. 【Method】In this study, seeds of Mongolian scotch pine(Pinus sylvestris var. mongolica)from 7 provenances were collected in 1981, seedlings were cultured in 1982 and planted in 1984 at Maoer Mountain. In 2015, we investigated the DBH, height, volume, crown width, ring width and survival rate of 31-year-old Mongolian scotch pine at Maoershan area. The superior provenance was selected by using variance analysis, multiple comparisons, correlation analysis and principal component analysis. 【Results】The DBH exhibited extremely significant difference(P<0.01), the volume and crown width exhibited significant difference(P<0.05), the height exhibited no significant difference among the different provenances. All the investigated traits showed no significant differences among different blocks. The tree ring width from Tuqiang provenance was maximum(3.69 mm)while its survival rate was minimum(56.67%). The DBH, height, volume, crown width and ring width didn’t significantly correlated to latitude and longitude of provenances, except for the survival rate which significantly and negatively correlated to latitude(P<0.01)and longitude(P<0.05), and significantly and positively correlated(P<0.05)to altitude. Therefore the genetic variation of Mongolian scotch pine was not obvious among the various traits. According to the principal component analysis, the composite index score of Tuqiang provenance was the highest(2.972). 【Conclusion】The growth traits of 31 year old Mongolian scotch pine showed differences among different provenances which of the Tuqiang provenance was best, and the HHEJ and GF provenances were better than that of the others. The Tuqiang provenance showed the best application potential at Maoershan area.

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