The linkage mechanisms and optimization strategies between land use transition and eco-environmental effects that occur in the production-living-ecological space of karst mountain areas remain under-explored in the current literature. Based on county data collected in Longlin Multinational Autonomous County of Guangxi, which is located in the rocky desertification area of Yunnan, Guangxi, and Guizhou, this study contributes a county-level analysis on land use transition and eco-environmental effects by addressing two research questions: (1) Which factors of land use transition are related to the eco-environmental effects of production-living-ecological space? (2) What are the key land allocation mechanisms behind the interventions of local rocky desertification regulation policies? We conducted two sets of analyses to answer these two questions: quantitative analyses of the spatial and temporal evolution between land use transition, rocky desertification, and its eco-environmental effects, and qualitative analyses of policy interventions on production-living-ecological land development and rocky desertification management. The findings show that the occurrence of rocky desertification accompanied by unreasonable land use structure transition and its important factor is caused by ecological land being restricted by production-living land. Specifically, urbanization strategies coordinating ecological and socio-economic effects is significant to karst mountain areas. Moreover, the orderly increase of woodland slows down rocky desertification. Policies of “returning farmland to forest” and “afforestation of wasteland” have significantly reduced rocky desertification that can be applied to other geographical situations.

As a practical exploration of industry ecologicalization, ecoindustrial parks (EIP) serve as an effective approach to sustainable development. Different from western industrialized countries, China is accelerating its industrialization, and the philosophy of symbiosis is embodied more in the requirements of economy and environmental protection in the production process than in the long-term social and environmental mutual construction. EIPs are a regional system consisting of nature, industry, and society, and the key to achieve industrial symbiosis is systematically allocating resources for industry, city, and people through planning. Based on engineering practice, the authors selected the special space of China Yueyang Petrochemical Industrial Park as the object of discussion, addressing the main problems and challenges facing its development, and focusing on the relationship between industrial symbiosis and spatial symbiosis. From the analysis of the current situation, the circular symbiotic industrial chain network, and the layout of the symbiotic park are included in the spatial planning of the industrial park.