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Assessing secondary soil salinization risk based on the PSR sustainability framework
De Zhou1, Zhulu Lin, Liming Liu
1Department of Land Resources Management, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China. zhoude520@gmail.com
Journal of Environmental Management
|July 13, 2013
Summary
Secondary soil salinization poses a threat to sustainable agriculture. This study developed a risk assessment method using the Pressure-State-Response framework, highlighting human impact on soil salinity.
Area of Science:
- Agricultural Science
- Environmental Science
- Soil Science
Background:
- Secondary soil salinization is a significant challenge to agricultural sustainability.
- Land management practices are a key driver of soil salinization.
- Effective risk assessment is crucial for sustainable land management.
Purpose of the Study:
- To develop a soil salinity risk assessment methodology.
- To apply the Pressure-State-Response (PSR) framework for risk factor selection.
- To create composite risk index maps for the Yinchuan Plain.
Main Methods:
- Utilized the Pressure-State-Response (PSR) sustainability framework.
- Incorporated grey relational analysis and Analytic Hierarchy Process (AHP).
- Selected fourteen risk factors across PSR criteria.
Main Results:
- Identified subsoil and groundwater salinity, land use, canal distance, and groundwater depth as key influences.
- Developed composite risk index maps for the Yinchuan Plain.
- Demonstrated the significant impact of human activities on salinization.
Conclusions:
- Proposed a methodology for assessing and managing secondary soil salinization.
- Highlighted the importance of considering human activities in risk assessment.
- Aimed to provide tools for consistent risk management and control of soil salinization.
