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Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

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Biocapacity optimization in regional planning.

Jianjun Guo^1,2, Dongxia Yue^1,2, Kai Li¹

¹Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.

Scientific Reports

|January 24, 2017

Summary

This summary is machine-generated.

Optimizing regional land use can reduce ecological overshoot, but requires careful water resource management. Spatial planning of biocapacity offers potential for sustainable development, though water scarcity remains a challenge.

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Area of Science:

Environmental Science
Ecological Economics
Regional Planning

Background:

Global ecological overshoot is increasing, driven by demand exceeding biocapacity.
Existing solutions primarily focus on reducing ecological footprints, neglecting biocapacity optimization.
Regional land-use planning offers a potential strategy for enhancing biocapacity and addressing ecological imbalances.

Purpose of the Study:

To explore the potential of spatial biocapacity optimization for regional sustainable development.
To assess the impact of land-use scenarios on ecological overshoot and water consumption.
To evaluate the effectiveness of different land-use transition rules in biocapacity enhancement.

Main Methods:

Development of a spatial probability model for biocapacity optimization.
Simulation of four distinct land-use scenarios in a Northwest China river basin.
Analysis of changes in ecological overshoot and water resource demands under each scenario.

Main Results:

Scenarios without land-use or water restrictions reduced ecological overshoot by 29-53%.
Scenarios restricting land-use and water increases worsened overshoot by 11-15%.
Biocapacity optimization significantly increased water resource requirements, stressing water-scarce systems.

Conclusions:

Spatial optimization of biocapacity through land-use planning can mitigate ecological overshoot.
Policy-makers can leverage land-use management for sustainable development.
The substantial water demand for biocapacity enhancement necessitates careful consideration in water-scarce regions.