• 论文及研究报告 •

基于森林资源二类调查数据的森林景观分类研究

1. 中国林业科学研究院资源信息研究所,北京100091
• 收稿日期:2003-06-27 修回日期:1900-01-01 出版日期:2005-03-25 发布日期:2005-03-25

Study on Classification of Forest Landscape Components Based on Forest Resource Inventory Data for Management

Lu Yuanchang,Hong Lingxia,Lei Xiangdong

1. Institute of Forest Resource Information Techniques, CAF Beijing100091
• Received:2003-06-27 Revised:1900-01-01 Online:2005-03-25 Published:2005-03-25

Abstract:

Based on data of forest resource inventory, a classification method for landscape components was developed in this study. With the data of Jingouling Forest Farm of Wangqing Forestry Bureau in Jilin Province, China, the quantitative and spatial database of vegetation and environment factors was established for classification works. Dominant tree species(or groups), elevation, slope and intensity of solar radiation were selected as influencing factors for classification, and the spatial range of the forest farm was segmented into 9 757 elementary units by the projection division of vector layers of the 5 influencing factors. Cluster analysis was then conducted with the 9 757 elementary units and 7 types of landscape component were determined as the key elements of forest landscape composition, and the related patch map was created respectively. Results of patch features and patterns analysis showed that: the small class of the landscape patch constituted the majority, and the small and middle classes of landscape patch accounted for 90% of the total patches. The mixed forest of conifer-broad leaves occupied the biggest area, the longest average patch area, the longest patch perimeter and the inner habitat index, etc., showing a relatively fewer man-made interference and then should be carefully protected in the process of forest management.