土地整理对区域景观变化影响研究

运用景观生态学理论方法,以江苏省仪征市某土地整理项目为例,选取斑块伸长指数、分维数、多样性指数、均匀度指数、优势度指数、破碎度指数、廊道密度等景观指标,对项目区整理前后景观格局特征进行分析。结果表明:整理后水田面积增大,斑块形状规则,有利于机械化作业和田间管理,但同时景观多样性略有降低。因此在土地整理过程中应采取多种手段,以减少土地整理对农村生态环境和农田景观的不利影响。

Impact of Land Consolidation on Change of Regional Landscape

Taking the land consolidation project of Yizheng City in Jiangsu Province as an example,patch extension index,fractal dimension,diversity index,evenness index,dominance index,fragmentation index,corridor density,etc were selected to analyze the characteristics of the landscape pattern before and after the land consolidation with the landscape ecology theory.The results showed that the wet area increased and the shape of patch was regular,which helped to mechanical work and field management,but the landscape multiplicity was reduced.Therefore,many methods should be adopted in the process of the land consolidation in order to reduce the adverse effect of the land consolidation on the countryside ecological environment and the farmland landscape.