摘要
以关帝林区 4个时期的航空像片和地形图为基础资料 ,通过地形斑块图层和植被斑块图层叠加建立景观要素斑块图层及相应数据库 ,在ARC/INFO支持下采用加密的公里网格样点取样的方法 ,成功地确立了森林景观转移概率矩阵 ,并应用马尔可夫模型对研究地区森林景观格局的变化趋势进行了分析、模拟和动态预测。结果表明该地区森林景现在现有经营方针和干扰状况下 ,将在 2 0 2 4年左右达到一个稳定状态。景观总体质量提高 ,有林地面积增加 ,其中寒温性针叶林和温性针叶林面积增大 ,落叶阔叶林面积略有减少。预示着关帝林区最终将趋于一种经济发展与森林资源管理、生态环境保护相协调的森林景观格局。
On the basis of 4 periods air-photo images and topographic maps of Guandishan Mountain Forest Region (GMFR), four landscape element patch maps and their relevant databases were established by identifying the topographical patch map with the vegetation patch map. Supported by ARC/INFO, a sampling way that was used to duplicated-density kilometer network sample dots successfully establish the transition probability matrix of forest landscape. The development tendencies of the forest landscape of GMFR were also analyzed, simulated and forecasted with Markov model. The results show that the forest landscape will reach a relative stable state in 2024 under the present management policy and disturbance regime; the overall quality of landscape will be improved; the area of closed forest will increase, and in which the area of north coniferous forest and the area of temperate coniferous forest will increase more significantly, and the area of broad leafed forest will decrease a little. The fact indicates that the forest landscape pattern of GMFR will tend to a state that its economical development is coordinated with forest resource management and ecological environment preservation in near future.
出处
《山西农业大学学报（自然科学版）》
CAS
2002年第3期234-238,共5页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
国家自然科学基金资助项目 (3 0 0 70 60 5 )
山西省自然科学基金资助项目 (2 0 0 0 10 90 )
