生态环境脆弱区的景观动态监测与预报研究

Dynamic monitoring and prediction of landscape pattern in ecological environment vulnerable area.

作为干旱半干旱区农牧交错带的典型代表 ,晋陕蒙接壤地区在自然地理上有其独特的空间分布格局 ,在生态上具有显著的脆弱生境特征和演化规律 .该文运用景观生态学的基本理论与方法 ,选取分维数、分离度和景观优势度等指标 ,对该区脆弱环境的景观格局进行了分析 ,并探讨了景观格局的形成过程 .同时 ,运用马尔柯夫链模型对未来土地利用的景观格局进行了预测 .

As the typical representative of mixed zone of agriculture and husbandry in arid and semi\|arid region,the adjacent area of Jin\|Shaan\|Meng(Jin is the shortened title for Shanxi Province Shaan is for Shaanxi Province and Meng for Inner Mongonia)not only has its special spatial pattern in physical geography,but also has typical characteristics of fragile ecosystem and differentiation rule in ecology.This paper applies the basic theory and method of landscape ecology,taking fractal dimension,isolation and dominance as indexes to analyze the landscape pattern of fragile environment in the area.The differentiation dynamics of landscape ecology in the regional ecosystem are also studied.At last the Markov process is employed to forecast the landscape pattern of the area in the future.