Currently it has not doubt to exert green empowering effect of “New Infrastructural Construction” to confront the upcoming carbon peaking, constraints of natural resources, CoVID19’s impacts and technical industrial reform. High-tech industry is of intensive knowledge, low resource consumption and low pollution, its innovative capabilities can embody industrial advances and help convert economy to an intensive and environment-friendly mode. This paper, viewing from green recovery, studies the theoretical mechanism of “new infrastructural construction” on high-tech industrial innovation. Inputs and use of “new infrastructural construction" as a vital means of green development and industrial innovation matters. This paper, based on China’s 28 province’s 2008 to 2020 panel data, uses baseline regression model to study impacts of “new infrastructural construction” on high-tech industrial innovative capabilities which has been validated by stability test through replacement of variables. Regression analysis is also conducted on China’s east and west. Mediating effect model is applied to study the impacts of cost saving effect, overflow effect and human capital effect on high-tech industrial innovation. Overall, “new infrastructural construction” can improve high-tech industrial innovative capabilities, outstandingly in eastern China little in central and western China. Human capital effect is an important path to improving high-tech industrial technical innovative capabilities in “new infrastructural construction”, but cost saving effect has a little overflow due to its masking effect. It concludes that China should support “new infrastructural construction”, exerts governmental leading role in advancing investment in central and western China, makes “new infrastructural construction” a path to high-tech industrial innovative capabilities, which is key to economic development, ecological sustability and industrial innovation.

Concept of “Clear waters and green mountains are as valuable as mountains of gold and silver” prevails with ecological priority and green development becoming a mutual developing path for cities. Yangtze River Delta city cluster is growing its industries with increasing pollution emission, especially the industrial wastewater pollution, thus largely decreasing residents’ euphoria. City cluster is becoming the growing center in replacement of central city. If other expansion of regions has impacts on industrial wastewater pollution remains a question. This paper, based on 246 prefectures’ data from 2003 to 2019 in China, uses synthetic control to study the impacts of enlarged city cluster on decreasing industrial wastewater pollution through the difference between the actual industrial wastewater emission and synthetic emission in Yangtze River Delta city cluster. Placebo and transformation is used to test its stability. Suggestions are given on how enlarged city cluster impact industrial wastewater emission. Enlargement policy largely decreases industrial wastewater emission in city cluster. Synthetic industrial wastewater emission without enlargement grows, but the actual industrial wastewater emission declines, which makes enlargement policy a necessity. Enlarged city cluster increases industrial wastewater emission through population density, but decreases it through economic growth. 

The rapid economic growth is based on a surging demand for mineral resources and then puts a challenging request for mining industry. However, the non-recoverable mineral resources which have been largely consumed in China now can not meet the economic development. This paper, based on the mineral resources, mining industry, and mining policy, surveys the reserves and categories of mineral resources, and directs an orientation for mining industry, offering a reference for further study on mineral resources.