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A multi-criteria evaluation system for arable land resource assessment.

Feipeng Li1, Wei Liu1, Zhibo Lu2

  • 1School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China.

Environmental Monitoring and Assessment
|January 4, 2020
PubMed
Summary

A new multi-criteria system evaluating arable land fertility and cleanliness provides excellent scores for 16 Chinese towns. This soil evaluation method aids farmers and agricultural management.

Keywords:
Arable land resourceComprehensive soil evaluation scoreHeavy metalsIntegrated fertility index (IFI)Multi-criteria evaluation systemSoil cleanliness index

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Area of Science:

  • Agricultural Science
  • Environmental Science
  • Soil Science

Background:

  • Arable land quality is crucial for food security and sustainable agriculture.
  • Existing evaluation systems often focus on single parameters, potentially missing crucial aspects of soil health.
  • Assessing both soil fertility and contamination is vital for comprehensive land management.

Purpose of the Study:

  • To develop and validate a multi-criteria evaluation system for arable land resources.
  • To integrate the soil integrated fertility index (IFI) with a soil cleanliness index.
  • To assess the arable land quality in Chongming District, China, using the novel system.

Main Methods:

  • A multi-criteria evaluation system was proposed, combining the soil integrated fertility index (IFI) and a soil cleanliness index.
  • Soil samples from 16 arable land units across 16 towns in Chongming District, China, were collected and analyzed.
  • The evaluation system was applied to assess comprehensive soil quality scores.

Main Results:

  • Comprehensive soil evaluation scores ranged from 90.7 to 99.2, with a mean of 96.2, indicating excellent arable land quality across all evaluated towns.
  • Lower soil cleanliness indices significantly impacted the final evaluation scores.
  • The multi-criteria system provided a more accurate reflection of soil quality compared to single-index evaluations.

Conclusions:

  • The proposed multi-criteria system effectively evaluates arable land resources by integrating fertility and cleanliness.
  • The system demonstrates that arable land in Chongming District is of excellent quality.
  • This comprehensive evaluation aids in agricultural policy, encouraging land preservation and supporting effective management decisions.