文献类型：期刊文献

中文题名：内蒙古大兴安岭林区立地质量评价及生产潜力研究

英文题名：Forestland Site Quality and Potential Productivity Evaluation in Daxing'anling Forest Region of Inner Mongolia

作者：付晓[1];王雪军[2];马炜[2];曹霖[3];李利伟[2];黄国胜[2];陈新云[2];党永锋[2]

第一作者：付晓

机构：[1]北京联合大学应用文理学院;[2]国家林业局调查规划设计院;[3]北京林业大学林学院

第一机构：北京联合大学应用文理学院

年份：2019

卷号：50

期号：2

起止页码：221-230

中文期刊名：沈阳农业大学学报

外文期刊名：Journal of Shenyang Agricultural University

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：北京联合大学人才强校优选计划项目(BPHR2019CZ01;BPHR2017EZ01);北京联合大学北京学课题项目(BJXJD-KT2018-YB06);林业公益性行业科研专项项目(201504303);北京市属高校高水平教师队伍建设支持计划高水平创新团队建设计划项目(IDHT20180515)

语种：中文

中文关键词：清查资料;树高曲线;立地形;立地质量;生产潜力

外文关键词：continuous forest inventory data;height curve;site form;site quality;potential productivity

摘要：为探讨如何利用现有资料对全国林地进行立地质量评价,为各级森林经营方案的规划设计提供技术支撑,以内蒙古大兴安岭林区为例,依据内蒙古大兴安岭森林资源清查的标准木、样木和样地数据,构建了区域内5种主要树种(组)树高曲线,计算出各样地内样木树高,再经筛选得到各树种优势木数据并编制其立地形表,然后基于地形和土壤等环境因子与立地形之间的数量关系,拟合立地形估测模型。在此基础上,使用林区二类调查数据中的地形和土壤因子,估测林区内所有小班的立地形,得到林区林地立地质量等级及其分布情况。最后根据三期固定样地资料和林区现实林分状况,综合确定各立地质量等级的森林生产潜力,由此来实现林区森林现实生产力状况与生产潜力对比分析评价。结果表明:分等级的树高曲线符合林木生长规律,根据样地等级计算样木树高,筛选优势木,采用理查兹模型的导向曲线和标准胸径编制立地形表的方法可行;由评价结果来看,林区林地质量整体较好,林地质量等级为好和中等的分别占56.59%和29.05%,合计高达85.64%;林区98.38%的森林未达到林地生产潜力水平,特别是中幼龄林的年平均生产力(2.63m3·hm-2·a-1)仅为潜在水平的41.10%;林区内中幼龄森林占比较大,且抚育经营潜力巨大,通过森林抚育,森林蓄积量测算能增加1656.10×104m3。因而,基于森林清查资料和二类调查数据库,在中国森林立地类型分类体系下的二级区内,结合多个树种(组)对区域内的林地质量进行评价并对其生产潜力进行测算的方法可行、实用,值得推广。
In order to provide technical support for the forest management plan,we explored how to use the available data to evaluate the site quality of forestland.Based on Continuous Forest Inventory Data(as mean tree,sample tree and plot),tree height curves of main tree species were established and site form tables were compiled.The site form models were built with landform and soil factors.The forest management inventory database of Daxing'anling forest region of Inner Mongolia was used for sub-compartment site form estimation of study area,and special distribution of forestland site quality classes was draw then.Meanwhile,the three-period data of permanent plot(6th,7th,8th) and realistic stand quality were used to calculate the forest potential productivity of each site quality grade,so as to comparative analysis and evaluation of the reality productivity and potential productivity.The result showed that,1) height class reflected tree growth on different site condition,can help to determine the level of plot,and used to calculate dominant tree height.Taking Richards function as basic model,site form tables can be compiled with standard age;2) forestland quality was preferably overall,the sum of area rate for good(56.59%) and medium(29.05%) was high as 85.64%;3) the area rate of forest(98.38%) did not reach the level of forestland production potential,the average annual productivity of immature and young forest(2.63 m^3·hm^-2·a^-1) was only about 41.10% of the potential productivity;4) the forestland in study area has a huge potential increment of about 1656.10×10^4m^3 under suitable management.In conclusion,the site quality evaluation method proposed in this research was available and worth spreading.