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.

 To overcome the impact of low oil price on Chinese petroleum companies`s oversea strategic investment, to prepare for the risks and to improve efficiency in overseas oil exploration and development, this paper analyzes the background of low oil price and its trend, studies the measurements that international companies took for the low oil price, and summarizes the current overseas exploration situation of Chinese petroleum companies and global oil gas resources and trend. Geopolitical gaming and interest conflicts are the major factors in stirring the oil price. A good practice at the low oil price taken by international companies is to optimize assets in pursuit of co-integration effect, to diminish investment and to transfer oil gas business into low cost and low risk domains. This paper presents suggestions for Chinese oil companies against low oil price on controlling cost, adjusting structure, optimizing project allocation and maximizing investment benefits, focusing on the co-integrated effect of existing projects with prospects, weighing the proportion of targets exploration and strategic exploration by appropriately using capital, and acquiring highquality projects under low oil price.

China sits a top in gold production, consumption and import. The gold reserve of countries within “One Belt and One Road” amounts to 65% in the world, 39% in production, 51% in consumption according to the global gold reserve, production and consumption information. Those countries have potential in expanding production and markets. China’s most gold mines are small, low grade, and limited reserve, hard to meet gold demands in the future. It needs to import gold through overseas gold investment. Under “One Belt and One Road”, this paper analyzes their gold resource and production, market, investment environment among the countries within “One Belt and One Road”, and presents three priority overseas areas for gold investment, 1） Russia and Mongolia; 2） middle and western Asia, Kazakhstan, Uzbekistan, Kyrghyzstan, Tajikistan, Pakistan, and Iran; 3) South Africa, Ethiopia, Kenya, Tanzania and Congo. Investment strategy is also given for each area.

This paper selects Pingshuo coal mine, Chinas biggest open pit, and uses ENVI and ArcGIS based on remote sensing images to study vegetation carbon pool change from 1987—2010, and estimates its carbon pool values. In 1987 woods carbon pool quantity was 8995% of whole vegetation, and fell as mine got bigger, and rebounded a little after due to restoration. Grass carbon pool quantity had a small percentage, fell then rose by 298% in 2010 than in 1987. Farmland carbon pool quantity fell continuously by 2130% by 2010, which relates to rising mining and farmlandbacktowoods policy. Carbon pool values vary with land use types, and positively with their quantity in woods, farmland and grassland.

This paper evaluates the shale-gas potential of the lower Cretaceous Madongshan formation of Liupanshan basin based on Madongshan formation mudstone and shale reservoir, porosity, and organic chemistry. This study indicates that the mudstone and shale is 121.5m thick on average, above 80% in brittle minerals content, 3.97% in porosity characterized by micro pore with less micro fissures, 2.76% in movable fluid saturation, 1.01% in total organic carbon chiefly in type II Kerogen, 0.94% invitrinite reflectance. All these features make Madongshan formation of shalegas potential. This paper highlighted two potential areas, the eastern Haiyuan sag and the central Guyuan sag, with their total shale-gas volume estimated to be 36.4 million cubic meters.

his paper, aiming at Chinas strategic adjustment of energy structure and a healthy biomass industry, uses related data and past research to reveal the main issues,and to analyze the constraints, and to clarify the future key missions. The main issues include high cost,lack of core technologies and overall planning, rough supportive policy, which, if resolved,will be constrained of biomass energy supply, current energy system and environmental protection. This paper present suggestions on clarifying the situation,overall planning, optimizing standards,technical innovation,improving services,cultivating markets and exploring Chinese featured industrial developing path and modes.

The changes in land occupancy forms bear the characteristics of times. The imperialist invaders broke the normal development of old China’s self-demand-self-supply economy. During land privatizing, the land ownership had been concentrated on the hands of old landlords, new bureaucracy, business men, usurers and imperialist invaders, resulting in a worsening living condition to China’s peasants. This paper, based on the changes in land occupancy forms and landlord class, insists on a necessity of “collective ownership of land” during land moving and contracting.