| 湖北省杉木人工林立地类型划分及评价 |
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| 引用本文： | 李斌成,杜超群,袁慧,吴楚,许业洲.湖北省杉木人工林立地类型划分及评价[J].湖北林业科技,2020,49(2):1-5. |
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| 作者姓名： | 李斌成 杜超群 袁慧 吴楚 许业洲 |
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| 作者单位： | 长江大学 荆州 434025;湖北省林业科学研究院 武汉 430075,湖北省林业科学研究院 武汉 430075,湖北省林业科学研究院 武汉 430075,长江大学 荆州 434025,湖北省林业科学研究院 武汉 430075 |
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| 摘 要： | 以湖北省杉木人工林为研究对象,选择166块具有代表性的杉木人工林标准地,并测定样地的常规立地因子。利用数量化理论Ⅰ的方法建立了杉木优势高与立地因子之间的关系模型,对研究区杉木人工林进行立地类型划分及立地质量评价。结果表明,所选择的5个立地因子与优势高数量化拟合的复相关系数为0.639;海拔、腐殖层厚度和坡位这3个立地因子对优势高的贡献率达84.99%,且影响均达到极显著水平;采用海拔、腐殖层厚度和坡位3个因子构建研究区杉木人工林立地类型,共划分为22类;按照优、良、中、差4个评价等级对166块样地所属的立地类型进行立地质量评价,得出湖北省杉木人工林在中海拔、土壤湿润、土壤养分含量较高的立地条件下生产力较高,研究区立地质量整体处于中等偏上水平的结论。
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| 关 键 词： | 杉木人工林 数量化理论Ⅰ 立地分类 立地质量评价 |
Site Classification and Quality Evaluation of Cunninghamia lanceolata Plantation in Hubei Province |
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| Li Bincheng,Du Chaoqun,Yuan Hui,Wu Chu,Xu Yezhou.Site Classification and Quality Evaluation of Cunninghamia lanceolata Plantation in Hubei Province[J].Hubei Forestry Science and Technology,2020,49(2):1-5. |
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| Authors: | Li Bincheng Du Chaoqun Yuan Hui Wu Chu Xu Yezhou |
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| Institution: | (Yangtze University ,Jingzhou 434025;Hubei Academy of Forestry ,Wuhan 430075) |
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| Abstract: | Taking Cunninghamia lanceolata plantation in Hubei Province as the research object,166 representative standard plots of Cunninghamia lanceolata plantation were selected and the conventional site factors of sample plots were determined.The relationship model between the dominant height of Cunninghamia lanceolata and the site factors was established by using the method of quantification theory I,and the site classification and site quality evaluation of Cunninghamia lanceolata Plantation in the study area were carried out.The results showed that the complex correlation coefficient of the five selected site factors and the dominant height was 0.639;the contribution rate of the three site factors of altitude,humic layer thickness and slope position to the dominant height was 84.99%,and the influence reached a very significant level;the three factors of altitude,humic layer thickness and slope position were used to construct the site types of Cunninghamia lanceolata plantation in the study area,which were divided into 22 categories;according to the excellent,The site quality of 166 sample plots was evaluated by good,medium and poor four evaluation levels.The results showed that the productivity of Cunninghamia lanceolata plantation was higher under the site conditions of medium altitude,soil moisture and higher soil nutrient content,and the site quality of the study area was in the upper middle level. |
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| Keywords: | Cunninghamia lanceolata plantation quantification theoryⅠ site classification quality evaluation |
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