To achieve sustainability of China’s manufacturing and to increase economic growth quality, this paper studies the impacts of manufacturing agglomeration on China’s green total factor productivity, and discusses the effects of different environmental regulations during the process. Based on the panel data of China’s 30 provinces from 2005 to 2018, this paper uses ultra-efficiency SBM model, which is non-desired output, non-directional and non-angular, to measure their green total factor productivity, and applies Tobit regression model to analyze the impacts of manufacturing on China’s green total factor productivity, and to verify the adjustment of market-stimulating, command controlling and public-involved environmental regulations between manufacturing agglomeration and China’s green total factor productivity. Manufacturing agglomeration is outstandingly negative to China’s green total factor productivity above 1%, suggesting China’s manufacturing still in a highly polluting and energy-consuming model. Crowding effect of industrial agglomeration is larger than economic scale effect, adversely affecting green total factor productivity. Among different environmental regulations, command-controlling and public-involving are conspicuously positive to manufacturing agglomeration above 1%, suggesting both largely constrain the adverse impacts of manufacturing agglomeration on green total factor productivity, while market-stimulating environmental regulation is negative and fails the significance test, meaning it has no adjustment function. China’s manufacturing layout needs further improvement and its industrial structure needs to be adjusted to promote a green transformation of China’s economy. Government shall optimize environmental laws and regulations to fulfill their driving roles in green development.

Poor connectivity and low permeability of coal fissure system need to be modified by using fracturing technology to increase the production. This paper, based on a case study of CBM wells fracturing technologies of Jincheng anthracite mining group, analyzes the pros and cons of hydraulic fracturing, nitrogen shock fracturing, high-energy gas fracturing and plasma pulse fracturing, compares their improved effects, aiming at offering references for selection of fracturing technologies and research direction. Active hydraulic fracturing is the chief means in raising the CBM production, but needs improvement in loose low-permeability and deep coal seams. Adaptability of gel and clean fracturing fluids to variable CBM reservoirs need further studies, and cost shall be lowered. Nitrogen shock fracturing is currently in tentative stage, which requires further research study in fracturing mechanism and technical adaptability. High-energy gas fracturing is not working well in deep coal seam and thin-bedded reservoirs, needing a technical milestone. Plasma pulse fracturing works well in old wells with excellent effect and should be used widely. 

Heilongjiangs Huojihe molybdenum deposit is a large porphyric deposit, whose ore bodies are hosting in granodiorite. Its mineralization process includes four states, quartzpyrite, quartzmolybdenite, quartzpolymetallic sulfides, and quartzcarbonate. This paper, based on its geology, acquired the model age of 1769±24-1787±24 Ma, averaged 1776 ±11 Ma，isochronic age of 1766±32 Ma by using ReOs dating, which reveals the deposit formed in the late of Lower Jurassic. The granodiorite contains a higher silicon, and rich alkaline, with Rittmann index of 219-378 and A/CNK of 105-112, belonging to a weakly peraluminous and highK calcalkaline series. The REE pattern shows rightoblique linear and a clear comparison between LREE and HREE. The trace elements are rich in Ba, Th and U large ion lithophile elements, and depleted in Nb, Ta, Ti and P high field strength elements, implying its metallogenic dynamic setting is related to the subduction continental arc of the paleoPacific Plate beneath the Eurasian Continent.

This paper uses Super SBM that takes industrial gas emission as nonexpected output to measure their energy efficiency in Chinas thirty provinces (cities and municipality) during 1998—2009, and analyzes their spatial distribution, which indicates a big variance among provinces, highest in the eastern, followed by the western, and then the central. The abating spatial concentrating implies a depressing influence among energy investment, technology and policy in neighbouring areas.

This paper analyzes the mine eco-environment status, issues and origins, and presents some approaches to the rehabilitation.

This paper introduces the microbe-applied oil recovery mechanism, technical progress and implementation in Jing’an oilfield, and based on the oilfield geology selects some microbes to enhance oil recovery on site with the test results indicting that the microbe-applied technology is applicable in low-permeable and fissured sandstone reservoir in Jing’an oilfield, gaining a higher oil recovery. This technology is of a good developing viability.