典型黑土区土壤环境质量综合评价指标体系与分区管理对策研究

东北黑土区是中国重要的商品粮基地,但由于经济的快速发展和工农业水平的提高,造成区域水土流失严重,黑土层变薄,土壤肥力变差,区域内土壤环境质量逐年下降。从研究区实际情况出发,结合现存环境问题,通过对东北黑土区驱动力、土壤环境压力、土壤环境状态、土壤环境影响及响应5个方面出发,在驱动力-压力-状态-影响-响应(DPSIR)框架模型基础上,进行典型黑土区土壤环境质量指标筛选,建立由5大部分,18个一级指标,30个二级指标构成的指标体系。同时,以评价指标体系为指导,结合东北地区现有环境管理政策和存在的土壤环境质量问题,提出黑土区土壤环境分区分类管理方案,为区域土壤环境管理和土壤环境保护提供科学依据。

Soil Environmental Quality Synthesized Evaluation Index System and Zoning Management Strategy in Typical Black Soil Region

The northeast black soil area is an important commodity grain base in China. Due to the rapid development of economy and the improvement of industry and agriculture, regional soil and water loss became serious, black soil layer became thinner and soil fertility became worse. Combined with the soil environmental condition and existing environmental problems, the authors selected typical black soil environmental quality indicators from 5 aspects including driving force, soil environmental pressure, soil environmental condition, soil environmental impact and response based on the driving force - pressure - state - response (DPSIR) framework model. The index system included 5 parts, 18 primary indexes and 30 second indexes. The authors put forward the soil environmental zoning and classification management solution in black soil area with the guidance of evaluation index system and in combination with existing environmental management policies and soil environmental quality problems, the result provided a scientific basis for regional soil environmental management and environmental protection.