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Regional social-ecological system coupling process from a water flow perspective.

Yida Wang1, Jing Li1, Yudan Wang1

  • 1School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi, China.

The Science of the Total Environment
|September 11, 2022
PubMed
Summary

This study introduces a water-related ecosystem services flow framework to analyze watershed social-ecological systems. It reveals how human activities impact water quality and pollution, guiding sustainable resource management.

Keywords:
Ecosystem services flowSWAT modelSocial-ecological systemWater resource managementWuding River watershed

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Area of Science:

  • Environmental Science
  • Ecosystem Management
  • Water Resource Management

Background:

  • Social-ecological systems integrate human and natural components, with water resources serving as a critical link.
  • Clarifying regional social-ecological system coupling via water flow and informing ecosystem service management requires further research.

Purpose of the Study:

  • To propose and apply a water-related ecosystem services flow framework integrating water quantity and quality.
  • To analyze the coupling process within a watershed social-ecological system and guide management decisions.

Main Methods:

  • Integrated water quantity and quality analysis.
  • Application of a novel water-related ecosystem services flow framework.
  • Simulation of water quantity and quality using the Soil and Water Assessment Tool (SWAT) model in the Wuding River watershed.

Main Results:

  • Significant spatial heterogeneity in ecosystem service provisioning and improved water quality observed due to human-made capital during the 'green phase'.
  • Beneficiaries discharged over 7400 tons of pollution loads during the 'red phase' while utilizing water resources.
  • Human-made capital reduced ammonia pollution by approximately 35%, with the ecosystem further processing about 44% of the remaining load.

Conclusions:

  • The developed framework is effective for watershed social-ecological systems with simpler interactions.
  • The findings provide a scientific basis for guiding ecological compensation schemes, management policies, and sustainable regional water resource utilization.