关键词: 农田土壤, 重金属污染修复, 土地整理

Abstract: [Objective] Based on the contents of soil basic properties and heavy metals by collecting sam-ples for testing, the farmland of Caofeidian in Hebei Province, was appraised by referring to the na-tional criteria for evaluation of soil environmental quality. [Method] According to evaluation results, which including local agricultural production conditions, engineering geology characteristics of farmland and the feasibility of different repairment techniques were comprehensively considered, and chosen mixing deployment earthwork repair technology program which combine the land consolidation and pollution remediation, with the design philosophy of pollution prevention priority and partition optimization con-solidation. At the same time, it was quantified evaluation of its comprehensive benefits. [Result] Results showed that:all the indicators had positive changes in the study area, including crop yield in-creased by 975.22 kg/hm², land utilization efficiency increased by 12.52% and remediation rate up to 37.68%. [Conclusion] The project should achieve the double improvements of soil environment and land utilization, and provided the scientific reference for land integrated consolidation work in the future.

Key words: farmland soil, heavy metals pollution repairment, land consolidation