| 王俊林,陈应彪,张坤煜,陈 炽,林文欢.不同立地条件对黎蒴生长的影响研究[J].林业调查规划,2024,49(4):19-22 |
| 不同立地条件对黎蒴生长的影响研究 |
| Growth Difference of Castanopsis fissa under Different Site Conditions |
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| DOI： |
| 中文关键词: 黎蒴 立地条件 海拔 坡位 坡向 坡形 坡度 |
| 英文关键词: Castanopsis fissa site condition altitude slope position slope aspect slope shape slope gradient |
| 基金项目:中央财政林业科技推广示范项目(〔2018〕GDTK-18). |
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| 中文摘要: |
| 在不同海拔、不同坡位、不同坡向、不同坡形以及不同坡度等立地条件下进行了黎蒴造林试
验,通过分析4 年生黎蒴林分生长情况,对粤东地区黎蒴适宜生长的立地条件进行了研究。结果表
明,不同海拔梯度对黎蒴林分生长影响显著,海拔<100 m时,黎蒴生长最好;随着坡位的上升,黎蒴
平均树高、平均胸径和平均冠幅逐渐减小,下坡黎蒴生长最好;东北坡、北坡黎蒴生长情况明显优于
南坡;生长于沟谷的黎蒴平均树高、平均胸径和平均冠幅显著高于山脊;当坡度<40°时,黎蒴的生
长情况较好,当坡度>40°时,黎蒴生长情况较差。在粤东地区黎蒴造林中,立地条件宜选择海拔小
于100 m、下坡、阴坡、沟谷及坡度小于40°。 |
| 英文摘要: |
| The afforestation experiment of Castanopsis fissa was carried out under the site conditions of different
altitude, different slope position, different slope aspect, different slope shape and different slope. By
analyzing the growth of 4-year-old Castanopsis fissa stand, the site conditions suitable for the growth of
Castanopsis fissa were studied in eastern Guangdong. The results showed that different altitude gradients
had significant effects on the growth of Castanopsis fissa, which was the best when the altitude was less than
100 m; with the elevation of slope, the height, DBH and crown width of Castanopsis fissa decreased gradually,
and the best growth was in the downhill; the growth of Castanopsis fissa on the northeast slope and the
north slope was obviously better than that on the south slope; the height, DBH and crown width of Castanopsis fissa in valley were significantly higher than those in ridge; when the slope gradient was less than 40°,
the growth of Castanopsis fissa was better, and when the slope gradient was greater than 40°, the growth was worse. To sum up, site conditions with altitude less than 100 m, downhill, shady slope, valley and slope
gradient less than 40° should be selected for afforestation of Castanopsis fissa in eastern Guangdong. |
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