半干旱丘陵区农业景观空间格局研究——以内蒙古和林格尔县胜利营乡为例

Study on Spatial Pattern of Agricultural Landscape in Hilly Zone of Semiarid Area --Taking Shengliying Township in Helingeer County of Inner Mongolia for an Example

选取景观空间格局分析指标 ,研究了内蒙古和林格尔县胜利营乡景观空间格局从 1991～ 1997年这六年间的变化。结果表明 :随着时间的推移 ,各景观类型的斑块数目明显增多 ,平均斑块面积减少 ;旱地和林地面积增加 ,水浇地从无到有 ,草地在景观中所占比例有所下降 ;景观的多样性指数、均匀性指数和平均班块伸长指数增大 。

Based on the indexes of landscape pattern, the change of spatial pattern of agricultural landscape was analyzed in Shengliying township from 1991 to 1997.The result shows that with the time passing, the patch numbers of different landscape types increased sharply and every mean patch area decreased. The area of dry farmland and forest grew more, but the percentage of grassland in this landscape became less,and there were some irrigated farmlands to develop.Landscape diversity,evenness and mean patch elongation index gradually increased. Landscape was developing toward many dominances.