中国水土保持科学2017，Vol.15Issue(5)：67-77,11.DOI:10.16843/j.sswc.2017.05.009
天保工程对东北和内蒙古重点国有林区保育土壤生态效益的影响
Evaluation on the influence of natural forest protection program on soil conservation and ecological benefits in Key State-owned Forest Districts in Northeast China-Inner Mongolia Area
摘要
Abstract
[Background] In recent years,China has carried out a series of major ecological restoration projects,such as the Three-north Forest Protection Project (TFPP),Natural Forest Protection Program (NFPP) and Grain for Green Project(GTGP).The government invested huge funds for the construction of these projects.The soil conservation and the ecological benefits of these ecological restoration projects have aroused widespread concern.[Methods] There have 7 forest industry groups in the NFPP area of the Key State-owned Forest Districts in Northeast China-Inner Mongolia.The total area of the project is 3 589.97 × 104 hm2.Three data sets were combined.First,the forest resources inventory data set;second,forest ecological inventory data set and third,the social public dataset issued by authoritative organizations in China.Then,the ecological benefits and economic values of the study area before and after the NFPP based on the function of soil conservation and ecological benefits were assessed with the forest ecosystem services assessment specification (LY/T 1721-2008) and the distributed measurement method.In addition,the study area was according to the ecological function areas,forestry bureau and dominant tree species and age,combined with the comparative observation of different site conditions to determine relatively homogeneous estimates of ecosystem services unit as 14 770.Thus,the temporal and spatial diversity of forest ecosystems in the study area was considered.[Results] 1) Up to the 2015,the total amount of the 9 dominant trees species of soil fixation and fertility maintenance was 131 724.91 ×104 t/a and 8 203.72 × 104 t/a,respectively.Compared with the prior to the implementation of NFPP,it increased 23 609.02 × 104 t/a and 1 738.23 × 104 t/a,respectively.2) The value of the 9 dominant trees species of soil fixation and fertility maintenance was 905.29 × 108 RMB Yuan/a and 2 408.92 × 108 RMB Yuan/a,respectively.It increased 455.44 × 108 RMB Yuan/a and 699.69 × 108 RMB Yuan/a,respectively,when compared with the prior to the implementation of NFPP.3) The soil fixation in ecobenefits of Betula spp.forest and broadleaf mixed forest were significant,while that in the Pinus koraiensis forest and Pinus sylvestris var.mongolica forest was not so.The fertility maintenance in the Larix spp.forest and broadleaf mixed forest had the best eco-benefits,but the P.sylvestris var.mongolica forest had the poor eco-benefits.4) Forest protection effectively improved the ecosystem service function,so that the eco-benefits of forest conservation can be improved.[Conclusions] Over time,with the implementation of the NFPP,the soil conservation function of forest in this study area and even the national NFPP's area must have a significant improvement.Of course,other ecological services function of the NFPP's area also needs further study.Accordingly,it will provide scientific reference for the evaluation of ecological benefits for the follow-up of this project.关键词
天然林保护工程/东北和内蒙古/重点国有林区/保育土壤/生态效益Key words
Natural Forest Protection Project/Northeast China-Inner Mongolia/the Key State-owned Forest Districts/soil conservation/ecological effects分类
农业科技引用本文复制引用
黄龙生,王兵,牛香,宋庆丰..天保工程对东北和内蒙古重点国有林区保育土壤生态效益的影响[J].中国水土保持科学,2017,15(5):67-77,11.基金项目
林业公益性行业科研专项“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）
