This paper use stochastic front model and spatial autocorrelation analysis to analyze the temporal-spatial pattern of urban land use efficiency in Yellow River's “JI” bend area to increase its managing capacity and urban land use efficiency. Urban land use efficiency in Yellow River's “JI” bend area has been declining during 2009 to 2019, at a middle to low level, but suggesting a higher potential to be raised. It shows a stochastic distribution spatially, with local concentrating in a weaker trend. Most cities with higher urban land use efficiency are capitals, while the lower distributing in Yan'an and Yulin, high to low connected area on surrounding Taiyuan but gone in 2019, low to high connected area on Wulanchabu. This paper suggests urban construction in Yellow River's “JI” bend area adjust its inputting structures in economic elements to promote a continuously rising of urban economy and to improve land use efficiency. Leading roles of regional central cities shall be enable to boost an integrated growth within the area.

Jiangsu province has the most total and per capita water footprint in the Yangtze River Economic Zone, and a severe water shortage which constraints Jiangsu's economy. This paper, from the perspective of water footprint and focusing on Jiangsu's water footprint efficiency changes, analyzes their drives and provides suggestions for sustainable development of Jiangsu's water resources. Jiangsu's water footprint results from 2010 to 2019 and extended Kaya formula are used to calculate the actual water use efficiency, water resource use technical level and water footprint. LDMI-attribution model is employed to estimate the drives with contribution of three water use sectors obtained. During the study period, Jiangsu shows a noted increase in water footprint efficiency, from 32.78 RMB/m³ in 2010 to 88.91 RMB/m³ in 2019,increasing by 171.25%, mostly driven by actual water use efficiency with a contribution 167%, followed by technical level with a contribution 26.15%. Water footprint proportion in agricultural use has relatively risen, and the water footprint structure contributes -21.67% to the change. Key drives come from actual uses in industrial and living sectors, 91.19% and 75.07% respectively, with only 0.73% from agricultural sector. In technical drives, most are contributed by living sector at 21.40%, followed by industrial sector at 4.79% and then by agricultural sector at -0.04%. In water footprint structural drives, only agricultural sector is positive at 0.06%, then living sector at -2.13% and industrial sector at -19.60%. This paper presents suggestions on constructing water-saving agricultural system to increase agricultural water use efficiency and to decrease agricultural water footprint proportion, keeping a downgrade of gray water footprint, limiting high pollution investments, supporting green development, stimulating province-wide consumption, optimizing foreign trading structure and increasing sustainable development capacity of water resources.

This paper uses shiftshare method to analyze Panzhihua’s industrial growth and structural changes during 2003—2012, and compare it with Sichuan’s industrial structure at the same period. The results show that the first industry with less industrial growth and structural shift quota contributes less to economy, the second industry with outstanding industrial structure growth contributes much to economy, but less than Sichuan’s average. The third industry with a stronger regional competitiveness than Sichuan’s average is of great potential. This paper presents suggestions for Panzhihua in its industrial structure and economy to develop featured the first industry on agriculture, steadily develop the second industry to increase regional competitiveness and expedite the third industry on featured tourism.

A remedy of recovering all mineral resources that are overlapped by constructions is a key means to avoid resource waste. This paper discusses some projects in progress of being overlapped by highway, reservoir and urban construction, and associated strategic minerals, and presents the remedy strategy in legally recovering, a fast recovering and a boosting monitoring system against illegal mining to ensure an ordered remedy and construction.

A sustainable development of mining industry necessitates the cycling economy. This paper, based on the traditional "3R" theory in the cycling economy, presents two more “R” principles, Rediscover and Replace, and combines them to “5R” theory, which has been applied to establish a comprehensive assessment indexes system to enhance the development of mining cycling economy.