The Influence of urban expanding on eco environment is mainly caused by the change of land coverage pattern and expanding spatial model.
城市扩张对生态环境的影响主要是由土地覆盖类型变化和扩张空间模式引起的。
The influence of land coverage pattern change on eco environment has already been studied quantitatively with remote sensing while the influence of spatial model is still in qualitative research.
基于遥感的土地覆盖类型变化对生态环境的影响已实现定量研究，而空间模式的影响尚处于定性研究阶段。
Unsuitable model, method or technical measures of land arrangement will bring the negative impact to the eco-environment of the farmland, that result in the decline of the environment quality.
不适当的土地整理方式、方法和技术措施，会对农田生态环境产生负面影响，导致环境质量下降。
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