Abstract
<title>Abstract</title> <p>Industrial park land-use composition is a critical determinant of industrial land take-up performance. While previous research has predominantly relied on linear models and broad locational indicators, such approaches often overlook complex internal spatial structures and non-linear dynamics governing market absorption. This study reinterprets industrial land occupancy as a binary indicator of full spatial take-up to capture the market’s functional response to publicly supplied economic zones. By integrating indicators of internal land-use portfolios, development context, and host-city conditions across 1,161 manufacturing industrial parks in South Korea, we execute an interpretable XGBoost-SHAP spatial modeling to extract actionable structural boundaries. The empirical analysis demonstrates that internal planning structures, specifically industrial maturity and functional composition, shape land take-up far more decisively than general urban amenities. Crucially, the effects of land-use allocation operate through strict non-linear threshold patterns where the marginal contribution of the industrial facility land ratio transitions into a positive driver only above the 0.65–0.70 range, whereas an over-allocation of public facility land exceeding the 0.28–0.30 threshold triggers a sharp drop in absorption performance due to core space compression. Furthermore, significant take-up variation persists within identical administrative jurisdictions, confirming that site-level spatial configuration dominates over broad regional labeling. These findings establish explicit policy standard benchmarks, shifting the regulatory paradigm from extensive raw land expansion toward targeted functional rebalancing, asset intensification, and site-specific restructuring priorities to ensure long-term industrial land sustainability.</p>