China's strict nature reserve policies accelerate industrial replacement: a new balance between ecological benefits and industrial transformation

China is undergoing a profound transformation in its "human-nature relationship," shifting from traditional resource exploitation toward ecological coexistence. In this process, nature reserves serve as core strategic tools, but how the stringency of their policies affects surrounding industrial dynamics and ecosystem service value has always been a global challenge. Recently, a study published in *Communications Sustainability* based on over 50 million enterprise records (2000–2020) from 6,638 nature reserves in China revealed the complex relationship between strict protection policies, enterprise entry and exit, and ecological benefits, offering new insights into the interplay between China’s industrial upgrading and ecological protection.

Accelerated Industrial Turnover: From Net Inflow to Dynamic Equilibrium

The study found that stricter protection policies are significantly associated with higher industrial turnover rates (i.e., the frequency of enterprise entry and exit). After 2013, China established a systematic protection network through the national park system and ecological protection redlines. Mechanisms such as the central ecological and environmental inspections linked ecological performance to official promotions, breaking down local protectionism. This prompted the exit of high-pollution industries while guiding the entry of eco-friendly industries. Under this policy pressure, areas around reserves shifted from "net industrial inflow" to a state of "dynamic equilibrium"—enterprises no longer gathered unidirectionally but underwent continuous elimination and regeneration.

This turnover is not simply enterprise relocation. Due to spatial friction and relocation costs, regulated enterprises often move to adjacent areas of the reserve to maintain local networks and circumvent policy constraints. At the same time, reserves have given rise to "gateway communities," where green industries such as ecotourism and specialty agriculture cluster, leveraging ecological labels and tourism opportunities. This mechanism has profoundly changed the human-land relationship in surrounding areas and directly affects ecosystem service value (ESV), including water conservation, soil retention, and biodiversity maintenance.

Ecological Benefits of Enterprise Entry Outweigh Those of Exit

A key finding is that enterprise entry generally brings stronger ecological benefits than enterprise exit. This means that simply driving out polluting enterprises is not enough to improve the ecosystem; introducing environmentally friendly industries and promoting structural transformation are crucial. However, not all industrial transformations are positive—some are accompanied by local sacrifices, such as a decline in soil retention functions. This indicates that policymakers need to pay attention to "transition costs" and avoid trading off one ecological service for another.

The study further points out that tourism resources have become the dominant factor shaping industrial relocation dynamics. Reserves with abundant tourism resources are more likely to attract service and ecotourism-related enterprises, forming a "green"-oriented industrial cluster. Conversely, regions lacking such resources face greater transformation challenges.

Implications for the Industrial Chain

From the perspective of manufacturing and supply chains, this research has important implications:1. Industrial Location Risks: As China's ecological conservation redline system becomes increasingly stringent, high-energy-consuming and high-pollution enterprises located in or near nature reserves face greater exit pressure. Supply chain managers need to reassess the environmental policy compliance risks of production bases, especially for industries that rely on regional industrial agglomeration.

2. Green Industry Opportunities: The "push" of reserve policies and the "pull" of ecological tourism and low-carbon agriculture are jointly creating new industrial spaces. If China's advantageous industries such as energy storage, photovoltaics, and new energy vehicles can embed themselves into the reserve economy in an "eco-friendly" manner, they may reap policy benefits.

3. Reshaping of Regional Industrial Structure: Different resource endowments (e.g., tourism resources, mineral resources) lead to varied paths of industrial transfer. Single policy tools are difficult to be effective, requiring industrial planning tailored to local conditions. For example, mountainous areas in the southwest may be more suitable for developing ecological tourism and specialty agriculture, while coastal reserves in the east can explore high-value-added green manufacturing.

4. Global Supply Chain Restructuring: China's policy-ecology-industry interaction model provides a reference for other developing countries. As global supply chains evolve toward "greening" and "nearshoring," enterprises need to incorporate ecological policies into long-term layout considerations.

Long-Term Trend Assessment

The accelerating industrial replacement trend revealed by this study is essentially a manifestation of "new quality productive forces" in ecologically sensitive areas. China is shifting from GDP-oriented extensive development to ecologically performance-oriented fine governance. This transformation will promote:

• Application of industrial robots and automation equipment in green industries to reduce the impact of human labor on the environment;
• Use of industrial software and digital twin technologies to monitor enterprise activities around reserves and the value of ecological services;
• New energy vehicles and energy storage systems becoming solutions for low-carbon transportation and energy supply in reserves.

For investors, attention should be paid to regions that can balance ecological protection and industrial upgrading, as well as enterprises that gain competitive advantages under ecological constraints.

In summary, China's strict policies on nature reserves are not simply "expelling industry," but achieving a rebalancing of ecology and economy through industrial replacement. This process is full of challenges, but also breeds new opportunities for manufacturing upgrading and supply chain transformation.