Study on simulation and drives of urban temporal-spatial evolutionary features can offer references in planning urban development and managing land resources. This paper uses urban spatial expansion identification mode, spatial expansion features measuring indicators and PLUS model to study Chongqing's 1980 to 2020 urban expansion mode in its downtown, to analyze its spatial pattern changing features and to forecast the future expanding trend with revealing its drives. During 1980 to 2020, as Chongqing had a slowly rising all-directional expansion differentiation in its downtown area, its urban fragmentation has been worsening with an expansion model of “multiple-directional, multiple extended wings and multiple banded” and a pattern of “west-fast-east-slow, southwest-northeast extension”. Chongqing's downtown had experienced a rising-then-falling trend in its expansion speed and intensity, with its urban expanding direction from inner and marginal filling to exterior and urban morphology from compacting to loose, fragmentated and irregular distribution during the study period. Chongqing's downtown will expand to its vicinity in 2030, slowly, of much differentiated expanding directions, mostly influenced by economy and planning policies. Topography, GDP, distance to waters/roads, and development planning are the major drives in impacting its expanding speed. Limited by geographic conditions, under “multiple-directional, multiple-banded” urban pattern, social economic factors mainly on economy, transportation and policies are the key drives for its downtown's spatial expansion. This paper presents suggestions on fulfilling functions of economic strategy, improving economic cooperation with surrounding cities, boosting investments on infrastructure, reinforcing radiation of center city to upgrade urban internal structure and to lead the regional development. Chongqing shall incorporate eco-environmental protection into the future planning, including ecological protection areas, natural protection areas and farmland protection areas, increase resources use efficiency and plan a coordinated sustainability of city and environment.

This paper, based on 2004 to 2016 panel data of China's 282 prefectures, establishes a GMM model and spatial Durbin model to study the impacts and spatial overflowing effect of financial pressure and industrial structural adjustment on green economic efficiency from different areas, types and vicinities. Green economic efficiency is largely restrained by financial pressure, but boosted by appropriate industrial structure, and improved by financial pressure and upgraded industrial structure in the eastern and central China, but outstandingly restrained by upgraded industrial structure in the western China. Green economic efficiency is promoted by both industrial structuralrationalizations, also promoted by financial pressure and upgrading industrial structure in resource-based cities, otherwise in non-resource-based cities. Industrial structural rationalizing and upgrading industrial structure largely exert a spatial overflowing effect on green economic efficiency.

This paper clarifies the concept and nature of mining rights, analyzes its legal essence, discusses its issues and presents suggestions on revising mining rights in Mineral Resources Law. Mining rights system is an “administrative license plus contract” under the governmental supervision, but deficiencies emerge as reform goes forward and economy develops, with many contents lagging behind marketing reform, leading to insufficient market competition, hardly guaranteed legal rights, confused contracts, and unreachable contract effectiveness. This paper presents proposals on differentiating state ownership and managing rights of mineral resources, separating rights registry and license approval, cancelling mining rights transfer approval and making a competitive bidding of mining rights.