以贵阳市区为例，选取自然生态系统指标、社会经济系统指标和农田污染系统指标，建立了土地资源评价模型。
By taking Guiyang City as a case study, the indices for the natural ecosystem, society economy system and cropland pollution system were chosen and the land resource evaluation model was established.
土地质量评价指标体系成为当前的研究热点，而土地污染是影响土地质量的重要因素。
Land quality indicators become a hot issue recently and land pollution is an important factor influencing land quality.
国际上污染土地置换开发的环境管理已有20多年的实践，在污染土地的识别、评价及其处理与管理、法规建设等方面上形成一整套体系。
With the practice and development of contaminated land replacement for 20 years, many countries have formed a complete system on the identification, assessment, and management of contaminated land.
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