[Research advances in simulating land water-carbon coupling]

Area of Science:

• Ecology
• Environmental Science
• Climate Science

Background:

• Growing demand for adaptive management of land, forest, and water resources.
• Global change and water resource crises necessitate understanding ecosystem cycles.
• Need for comprehensive study of coupled ecosystem water and carbon cycles.

Purpose of the Study:

• To construct a water-carbon coupling model.
• To understand ecosystem water-carbon balance and interactive responses to climate change.
• To explore water-carbon coupling at multiple spatiotemporal scales.

Main Methods:

• Review of water-carbon coupling relationships across scales.
• Exploration of key processes, parameters, and estimation methods for water-carbon coupling.
• Construction of a large-scale evapotranspiration model using remote sensing (RS).

Main Results:

• Identified implications and estimation methods for water-carbon coupling.
• Developed a large-scale evapotranspiration model based on RS.
• Highlighted the significance of the RS-based model for water-carbon coupling research.

Conclusions:

• Water-carbon coupling is a major concern for ecosystem management under climate change.
• Remote sensing-based evapotranspiration models are vital for large-scale water-carbon coupling studies.
• Assimilative multivariate data hold potential for future water-carbon coupling research.