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Food supply

Ecosystem Services in Farmland Show Positive Trends

Strategic Insights

— 1 min read

A study published in Regional Environmental Change has reported on the changes in ecosystem services in the farmland of the Wan'an watershed in Sichuan, China. The research focused on the relationships between landscape patterns and ecosystem services, and used models such as CNMM-DNDC and InVEST to simulate ecological processes and key ecosystem services. The study found that from 2010 to 2020, overall ecosystem functions showed an upward trend, with the food supply function steadily increasing, while the water conservation and soil retention functions initially increased and then declined.

Key Takeaways:

  • The study found that the food supply function in the Wan'an watershed increased by 1.94 x 10^3 +/- 56.89 t compared to 2020.
  • The water conservation function increased by 4.02 x 10^4 m^3 compared to 2020.
  • The soil conservation function decreased by 3390.42 +/- 51.32 t compared to 2020.
  • The agricultural ecosystem services in the study area were found to be predominantly characterized by low synergy, indicating a positive development trend for the region's farmland ecosystem.
  • Rationally adjusting the synergistic trade-offs between ecosystem services can help achieve the sustainable development of farmland and provide a basis for decision-making in the agricultural development of small watersheds.
  • The study used crop simulation models such as CNMM-DNDC, InVEST, RUSLE, and CA-Markov to simulate ecological processes and key ecosystem services.
  • The researchers explored the synergies and trade-offs among food supply, water retention, and soil conservation services, and found that agricultural ecosystem services in the study area are predominantly characterized by low synergy.

Statistics:

  • The food supply function increased by 1.94 x 10^3 +/- 56.89 t from 2020 to 2025 compared to 2020.
  • The water conservation function increased by 4.02 x 10^4 m^3 from 2020 to 2025 compared to 2020.
  • The soil conservation function decreased by 3390.42 +/- 51.32 t from 2020 to 2025 compared to 2020.
  • The study area has a total area of approximately 2300 km^2.
  • The study was conducted over a period of 10 years, from 2010 to 2020.

Sources:

  • Responses and Trade-offs of Agricultural Ecosystem Functions To Land Use Changes In Typical Watersheds of Sichuan, China. Regional Environmental Change, 2025; 25(3).
  • Springer Heidelberg, Tiergartenstrasse 17, D-69121 Heidelberg, Germany. (Springer - www.springer.com; Regional Environmental Change - www.springerlink.com/content/1436-3798/)
  • Chengdu University of Technology, Coll Geog & Planning, Chengdu 610059, People's Republic of China.

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