This paper, based on high-tech industrial panel data of 11 provinces along Yangtze River Economic Zone during 2007 to 2016, establishes indexes marking technical innovation efficiency from perspective of input/output, and uses ultra-efficiency DEA model and panel threshold model to study the influence of governmental allowance and financing concentration on technical innovation efficiency. Research indicates the average technical innovation efficiency of high-tech industry is 1.193, with outstanding variance among the up-, middle- and down-stream, high in both up- and down-stream and low in middle-stream. There is an obvious three threshold effect between governmental allowance and technical innovation efficiency. Influence intensity and direction of governmental allowance on innovation efficiency vary with financing threshold ranges.

This paper, based on policy goals, predicts the new energy vehicles, and their loaded production and used Li ion batteries for 2016-2025, including LiFePO4 and LiMn1xyNixCo-yO-2, calculates the demand of five non ferrous metals, lithium, aluminum, copper, nickel and cobalt under two scenarios. In 2025 the demand of five above stated metals will be 182.3 to 757.3kt, of which lithium 8.1-33.2kt, aluminum 88.4-373.6kt, copper 52.0-226.9kt, nickel 16.9-61.8kt, cobalt 16.9-61.8kt. Compared with their production in 2014, all may not meet the demand in 2025 with the exception of aluminum, especially cobalt and lithium.

The plowland resource is the fundamental material for human being. China, with huge quantity of people but less plowlands, is short of plowland resources. This paper, based on the gross plowland quantity, remained quantity and annual change over past years, analyzes the plowland resource and presents some suggestions to utilize and protect the plowlands in China.