中国水土保持科学2017，Vol.15Issue(6)：81-88,8.DOI:10.16843/j.sswc.2017.06.010
东北重点国有林区天然林生态区划
Ecoregion division of natural forest at the key state-owned forest region in Northeast China
摘要
Abstract
[Background] The key state-owned forest region in Northeast China is one of "Two Screen and Three Zones" as the subject,to ensure the ecological safety of the Northeast China.For comprehensively,systematically,scientifically,and quantitatively evaluating the ecological benefits of the region's Natural Forest Protection,dividing the ecoregions is indispensable.[Method] First,we chosen the map of the Natural Forest Protection,eco-geological system of China,Chinese vegetation regionalization,China's soil erosion region and China's administrative division as the data sources.Then,we selected hydrothermal conditions,vegetation types,soil erosion types and intensities as three levels of regionalization indicators.Finally,we applied the geographic information system(GIS) space analysis to obtain the ecoregions.[Results] Based on the climate there are 3 Class Ⅰ areas of cool moist,midtemperate moist,and mid-temperate semi-moist.Based on the Class Ⅰ and vegetation type,there are 4 Class Ⅱ areas:cool moist coniferous forest,mid-temperate moist mixed broadleaf-conifer forest,midtemperate moist rangeland,and mid-temperate semi-moist rangeland.Based on the Class Ⅱ and soil erosion type and intensity,there are 12 Class Ⅲ areas:Ⅰ-A-a-1 cool moist deciduous conifers nonerosive area,Ⅰ-A-a-2 cool moist deciduous coniferous slight wind erosive area,Ⅰ-A-a-6 cool moist deciduous coniferous high water erosive area,Ⅱ-A-b-1 mid-temperate moist mixed broadleaf-conifer forest non-erosive area,Ⅱ-A-b-3 mid-temperate moist mixed broadleaf-conifer forest slight water erosive area,Ⅱ-A-b-4 mid-temperate moist mixed broadleaf-conifer forest mild water erosive area,lⅡ-A-b-5 mid-temperate moist mixed broadleaf-conifer forest moderate water erosive area,Ⅱ-A-b-6 mid-temperate moist mixed broadleaf-conifer forest high water erosive area,Ⅱ-A-c-6 mid-temperate moist rangeland high water erosive area,Ⅱ-B-c-1 mid-temperate semi-moist rangeland non-erosive area,Ⅱ-B-c-2 midtemperate semi-moist rangeland slight wind erosive area,and Ⅱ-B-c-3 mid-temperate semi-moist rangeland slight water erosive area [Conclusions] Based on multiple indicators,the key state-owned forest region Natural Forest Protection in Northeast China is characterized,ecoregions intuitively reflects the actual geographical regional rules.Meanwhile,we may use regionalization characteristics to verify the results of ecological benefit assessment,thus this work lays the foundation for ecological benefits monitoring and evaluation of the region's Natural Forest Protection.关键词
天然林/生态区/生态区划/地理信息系统/东北地区Key words
natural forest/ecoregion/ecoregion division/geographic information system/Northeast China分类
农业科技引用本文复制引用
王兵,刘祖英,赵雨森,牛香..东北重点国有林区天然林生态区划[J].中国水土保持科学,2017,15(6):81-88,8.基金项目
林业公益性行业科研专项项目“东北森林生态要素全指标体系观测技术研究”(201404303) （201404303）
科技创新服务能力建设-协同创新中心-林果业生态环境功能提升协同创新中心(2011协同创新中心)(市级)(PXM2017_014207_000043) （2011协同创新中心）
