红松人工林生长特性与经营管理策略研究
摘 要
红松作为我国东北地区重要的用材树种,其人工林经营对区域生态建设和经济发展具有重要意义。本研究以黑龙江省小兴安岭地区红松人工林为对象,通过长期定位观测和样地调查,系统分析了不同立地条件下红松人工林的生长特性及其影响因素。研究采用样方调查法、树干解析法和生物量测定法,获取了红松人工林的胸径、树高、材积等生长指标,并建立了相应的生长模型。结果表明,红松人工林在中等立地条件下表现出最佳生长状态,20年生林分平均胸径可达16.8cm,平均树高12.5m,单株材积0.15m³。研究发现,密度调控是影响红松人工林生长的关键因素,适度间伐可显著提高林木生长量和林分质量。基于研究结果,提出了以密度控制为核心的红松人工林经营管理策略:幼龄期保持较高密度以促进自然整枝;中龄期实施适度间伐以优化林分结构;近熟期进行定向培育以提高木材品质。
关键词:红松人工林;生长特性;密度调控
RESEARCH ON THE GROWTH CHARACTERISTICS AND MANAGEMENT STRATEGY OF KOREAN PINE PLANTATION
ABSTRACT
As an important timber tree species in northeast China, the plantation management of Korean pine is of great significance to the regional ecological construction and economic development. In this study, using the Korean pine plantation in the Lesser Hinggan Mountains of Heilongjiang Province, we systematically analyzed the growth characteristics and influencing factors of the Korean pine plantation under different site conditions through long-term location observation and sample survey. The growth indexes of tree diameter, tree height and biomass accumulation were obtained, and the corresponding growth model was established. The results showed that the Korean pine plantation showed the best growth state under medium site conditions, with an average diameter of 16.8cm at 20 years, an average tree height of 12.5m, and a single plant product of 0.15m³. It is found that density regulation is the key factor affecting the growth of Korean pine plantation, and moderate thinning can significantly improve the growth capacity and stand quality of trees. Based on the research results, the management strategy with density control is put forward: maintaining high density to promote natural pruning, moderate thinning to optimize the stand structure, and directional cultivation in the near ripening stage to improve the wood quality.
KEY WORDS:Korean pine plantation; growth characteristics; density regulation
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
第2章 红松人工林生长特性分析 2
2.1 红松人工林生长阶段划分 2
2.2 红松人工林生长速率特征 2
2.3 红松人工林生长影响因素 3
第3章 红松人工林经营管理现状 4
3.1 红松人工林经营模式分析 4
3.2 红松人工林管理技术应用 4
3.3 红松人工林经营效益评估 5
第4章 红松人工林优化经营策略 6
4.1 基于生长特性的经营策略优化 6
4.2 红松人工林可持续管理模式 6
4.3 红松人工林经济效益提升路径 7
第5章 结论 8
参考文献 9
致 谢 10
摘 要
红松作为我国东北地区重要的用材树种,其人工林经营对区域生态建设和经济发展具有重要意义。本研究以黑龙江省小兴安岭地区红松人工林为对象,通过长期定位观测和样地调查,系统分析了不同立地条件下红松人工林的生长特性及其影响因素。研究采用样方调查法、树干解析法和生物量测定法,获取了红松人工林的胸径、树高、材积等生长指标,并建立了相应的生长模型。结果表明,红松人工林在中等立地条件下表现出最佳生长状态,20年生林分平均胸径可达16.8cm,平均树高12.5m,单株材积0.15m³。研究发现,密度调控是影响红松人工林生长的关键因素,适度间伐可显著提高林木生长量和林分质量。基于研究结果,提出了以密度控制为核心的红松人工林经营管理策略:幼龄期保持较高密度以促进自然整枝;中龄期实施适度间伐以优化林分结构;近熟期进行定向培育以提高木材品质。
关键词:红松人工林;生长特性;密度调控
RESEARCH ON THE GROWTH CHARACTERISTICS AND MANAGEMENT STRATEGY OF KOREAN PINE PLANTATION
ABSTRACT
As an important timber tree species in northeast China, the plantation management of Korean pine is of great significance to the regional ecological construction and economic development. In this study, using the Korean pine plantation in the Lesser Hinggan Mountains of Heilongjiang Province, we systematically analyzed the growth characteristics and influencing factors of the Korean pine plantation under different site conditions through long-term location observation and sample survey. The growth indexes of tree diameter, tree height and biomass accumulation were obtained, and the corresponding growth model was established. The results showed that the Korean pine plantation showed the best growth state under medium site conditions, with an average diameter of 16.8cm at 20 years, an average tree height of 12.5m, and a single plant product of 0.15m³. It is found that density regulation is the key factor affecting the growth of Korean pine plantation, and moderate thinning can significantly improve the growth capacity and stand quality of trees. Based on the research results, the management strategy with density control is put forward: maintaining high density to promote natural pruning, moderate thinning to optimize the stand structure, and directional cultivation in the near ripening stage to improve the wood quality.
KEY WORDS:Korean pine plantation; growth characteristics; density regulation
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景及意义 1
1.2 研究目的和内容 1
第2章 红松人工林生长特性分析 2
2.1 红松人工林生长阶段划分 2
2.2 红松人工林生长速率特征 2
2.3 红松人工林生长影响因素 3
第3章 红松人工林经营管理现状 4
3.1 红松人工林经营模式分析 4
3.2 红松人工林管理技术应用 4
3.3 红松人工林经营效益评估 5
第4章 红松人工林优化经营策略 6
4.1 基于生长特性的经营策略优化 6
4.2 红松人工林可持续管理模式 6
4.3 红松人工林经济效益提升路径 7
第5章 结论 8
参考文献 9
致 谢 10