| 杨吉江,杨 军,肖 锐,杨 凯.疏伐对促进红松果林生长与结实的影响研究[J].林业调查规划,2023,48(3):153-157 |
| 疏伐对促进红松果林生长与结实的影响研究 |
| Effect of Thinning on Promoting the Growth and Fruiting of Pinus koraiensis Fruit Forest |
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| DOI： |
| 中文关键词: 疏伐 疏伐强度 林分生长 结实量 种子品质 红松果林 |
| 英文关键词: thinning thinning intensity stand growth seed yield seed quality Pinus koraiensis fruit forest |
| 基金项目:中央财政林业科技推广示范项目（黑〔2023〕TG02号；黑〔2023〕TG23号）；国家“十三五”重点研发项目（2016YFC050030501）；黑龙江省科技厅重点攻关项目（CC12B203）. |
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| 中文摘要: |
| 针对目前红松果林经营中产量偏低的现象，采取以疏伐为主的措施进行促进红松果林生长和结实的试验。结果表明，疏伐强度分别为45.35%和34.30%的两组试验地，其胸径生长量分别比对照（未经疏伐林分）提高189.7%和154.8%，冠幅生长量提高229.5%和189.5%，结实株率分别提高155%和100%。疏伐可促使红松种子品质明显提高，种子活力和千粒重比对照增加15.4%和8.95%，球果数量和重量增加8.5%和26%，出种率增加171%。强度疏伐（≥50%）可显著提高红松林木生长，促进其开花结实。 |
| 英文摘要: |
| To solve the current problem of low yield in fruit forest management of Pinus koraiensis, main measurements of preliminary thinning were taken to promote the growth and fruiting of Pinus koraiensis fruit forests. The results showed that the two experimental plots with thinning intensities of 45.35% and 34.30%, respectively, showed an increase of 189.7% and 154.8% in DBH growth, 229.5% and 189.5% in crown growth, and 155% and 100% in seed setting rate compared to the control (non thinning stand). Thinning could significantly improve the quality of Pinus koraiensis seeds, increase seed vitality and thousand seed weight by 15.4% and 8.95% compared to the control, increase the number and weight of cones by 8.5% and 26%, and increase the seed emergence rate by 171%. Intensive thinning (≥50%) could significantly improve the growth of Pinus koraiensis and promote the flowering and fruiting. |
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