| 摘要: |
| 三树种种植比较结果显示，西南桦在我场也就是低山丘陵地有较大发展潜力，6.5年生平均高11.6m，平均径12.9cm，年均生长量分别为1.78m和1.98cm，最大径级达到21cm，生长迅速值得经营和发展。肯氏南洋杉和贝壳杉生长慢，其生长量只有西南桦的1/2上下，发展潜力小，不值得作为用材林经营，而作为庭园绿化和美化树种则较好。 |
| 关键词: 西南桦 生长表现 生长量 经营 发展潜力 |
| DOI： |
| 投稿时间：2009-04-08修订日期：2009-05-19 |
| 基金项目: |
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| Three Betula species in Zhenhai the effect |
| Zheng Haixui |
| () |
| Abstract: |
| Abstract: Growth of three species showed that Betula in my Forest Farm that is hilly and there is a greater potential for development, an average of 6.5-year-old high-11.6m, the average diameter 12.9cm, respectively, at an average annual growth of 1.78m and 1.98cm, reached the largest diameter 21cm, worthy of a fast growing business and development. Ken's kaurane Araucaria and slow growth, the growth of Betula is only 1 / 2 from top to bottom, the development potential of small business is not worth as timber, as green and beautify the garden is a good species.
Key words: Betula alnoides growth performance growth management development potential |
| Key words: Betula alnoides growth performance growth management development potential |