泥河沟试区源面农林复合生态经济系统景观格局特征研究

本文通过对泥河沟试区塬面景观生态系统中各类嵌块体数量及面积、嵌块体优势度及多样性指数、斑匀度及类斑匀度、斑丰度及类斑丰度、带丰度及带斑比等景观生态指标的计算分析，认为经过近１０年综合开发治理，景观基质已由原来农地变化为果衣镶嵌共为基质，景观异质性、多样性、均匀性程度不断提高的多极化景观生态空间格局；试区原面景观生态空间格局由过去的单一农业控制发展为农业与林果业共同控制，系统结构趋于复杂，稳定性程度逐渐提高，试区塬面农林复合生态经济系统已逐渐形成。

Characteristics of Landscape Patterns in the Eco-economic System of Agro-forestry in Nihegou Test Region

Numbers, areas, dominance,diversity, homogeneity and richness of all patches and every kind of patches,corridor richness, and corridor/patch ratio in landscape ecology in ecoeconomic system of agro-forestry in Nihegou test region. Because comprehensive control and development have been undertaken for 10 years, forest land and orchard inlaid crop land became landscape matrix (crop land was landscape matrix in this area before 10 years). The degrees of landscape diversity and evenness have increased continually. There was a multipolar spatial pattern in landscape ecology in this area. The spatial pattern in landscape ecology which was controlled only by crop land 10 years ago, now by orchard, forest and crop land. The structure of the system was tending towards complication and the stability of the system towards improvement. An eco-economic system of agro-forestry was formed gradually in this area.