求翻译：本文在总结前人研究成果的基础上，从证实角度把握现阶段我市经济发展过程中种植业面源污染压力和演变过程，前面分析昭通市种植业面源污染存在的主要问题及发展趋势的基础上，根据循环经济理论，提出了以防为主，以生物措施为主、工程和生物措施相结合的方法，综合防治农业环境污染和生态恶化。是什么意思？

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This article in summarizes in the predecessor research results foundation, grasps the present stage from the confirmation angle I in the city economy developing process the crop production surface source pollution pressure and the successional variation process, front analyzes the Chaotung city crop

This article in summary predecessors research results of Foundation Shang, from confirmed angle grasp at this stage I City economic development process in the planting surface source pollution pressure and evolution process, front analysis zhaotong city planting surface source pollution exists of ma