In Qin and Han dynasties,good environment for agricultural development have laid the foundation of central shaanxi.Agricultural development promote economic development and guarantee the people life,but cause damage for ecological environment.In terms of contemporary western development,we should develop ecological agriculture on the guide of sustainable development theory,rational development and farming and benefit people.%秦汉时期关中地区良好的生态环境为农业开发奠定了自然基础。农业开发促进了关中地区经济发展,保障了民众生活,对生态环境也造成一定破坏。当代西部开发过程中必须在可持续发展理论指导下发展生态农业,合理进行农业开发,造福于民。
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