| 不同发育阶段马尾松人工林经营效果动态分析 |
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| 引用本文： | 彭检贵.不同发育阶段马尾松人工林经营效果动态分析[J].林业资源管理,2020(1):62-69. |
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| 作者姓名： | 彭检贵 |
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| 作者单位： | 国家林业和草原局中南调查规划设计院,长沙410004 |
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| 摘 要： | 为揭示不同发育阶段马尾松人工林经营效果的动态变化特征规律,对青羊湖林场不同发育阶段的马尾松人工林(幼龄林、中龄林、近熟林)林分空间结构、物种多样性、土壤肥力、林木生长等指标进行动态分析,运用主成分分析法,对不同发育阶段的各经营样地的经营效果进行综合评价。结果表明:不同发育阶段的马尾松林在经营改造后,空间结构明显改善,物种多样性指数均明显提高,土壤肥力也有所改善;幼龄林、中龄林和近熟林9块样地抚育间伐补植改造效果综合评价得分依次为0.079,-0.021,-0.241,0.528,0.438,1.028,-0.145,-0.780,-0.886,得分越高说明改造经营效果越好。经营促进了不同发育阶段马尾松人工林林分空间结构的优化、树种多样性的提高、土壤肥力的改善和林木蓄积生长的提高,林分向异龄复层混交林方向发展,为马尾松人工林经营提供理论依据。
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| 关 键 词： | 马尾松林 不同发育阶段 经营措施 综合评价 森林经理 |
Dynamic Analysis on the Effect of Pinus massoniana Plantation Management at Different Growth Stages |
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| PENG Jiangui.Dynamic Analysis on the Effect of Pinus massoniana Plantation Management at Different Growth Stages[J].Forest Resources Management,2020(1):62-69. |
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| Authors: | PENG Jiangui |
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| Institution: | (Central South Inventory and Planning Institute of National Forestry and Grassland Administration,Changsha 410004) |
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| Abstract: | In order to reveal the dynamic characteristics of the management effect of Pinus massoniana plantation in different development stages,the spatial structure,species diversity,soil fertility,tree growth and other indicators of Pinus massoniana plantation in different development stages of Qingyanghu Forest Farm were analyzed dynamically,and the principal component analysis method was used to analyze the spatial structure,species diversity,soil fertility,tree growth and other indicators comprehensive evaluation of operation effect.The results showed that the spatial structure,species diversity index and soil fertility of Pinus massoniana forest in different development stages were significantly improved.The comprehensive evaluation scores of the effect of thinning and replanting in 9 plots of young forest,middle age forest and near mature forest were 0.079,-0.021,-0.241,0.528,0.438,1.028,-0.145,-0.780,-0.886,respectively.The higher the scores,the better the effect of the transformation.The management promoted the optimization of spatial structure,the improvement of species diversity,the improvement of soil fertility and the increase of forest accumulation and growth in different development stages of Pinus massoniana plantation,and the development of the stand to the direction of multi-layer mixed forest of different ages,which provided theoretical basis for the management of Pinus massoniana plantation. |
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| Keywords: | Pinus massoniana forest stand spatial structure different developmental stages plant diversity soil fertility |
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