基于GIS的长岭岗林场森林景观格局分析与优化

GIS-based Analysis and Optimization of Forest Landscape Pattern in Changlinggang Forest Farm

以建始县国有长岭岗林场森林资源二类调查数据为基本材料,在GIS技术支持下,从森林景观格局总体特征、景观斑块异质性和景观水平异质性3个层次对该林场森林景观格局特征进行定量化分析。结果表明:其森林景观存在分布极不均衡、未利用林地斑块数量多、受干扰及破碎化程度高、生态功能及效益得不到有效发挥等问题。对此,有针对性地提出了森林景观格局优化建议,指出了森林景观格局优化方向。研究结果从景观尺度为建始县国有长岭岗林场森林可持续经营提供了科学依据。

Based on the forest resource inventory data of Changlinggang national Forest Farm in Jianshi County,the landscape patterns in the farm were quantitatively analyzed with the support of GIS from three aspects：overall landscape characteristics,landscape patch and landscape heterogeneity.The results showed that the overall forest landscape has many current problems,such as extremely imbalanced landscape distribution,a large number of unused forest patch,a higher degree of interference and fragmentation,not giving full play to ecological functions and benefits,etc.On this basis,some optimizing suggestions and directions of the forest landscape pattern were put forward in this paper.The results of the study,provided scientific basis in the aspect of landscape scale for forest sustainable management of Changlinggang forest farm in Jianshi County.