This paper, based on energy values theory, uses ecological footprint model to quantitatively analyze Qiqihaer's energy ecological carrying capacity, energy ecological footprint and ecological deficit/excess during 2000 to 2016, with results showing that Qiqihaer had been in ecological deficit at a rising tendency, which means human's demands exceed the natural supplies, an unsustainable status. Qiqihaer shows a growing ecological environmental carrying capacity pressure, a diminishing coordinated ecology and eco-environment. The regional ecological coordination is relatively poor. GDP ecological footprint index per 10k RMB indicates an increasing energy use rate, an improved resource use method and a decreasing ecological impact during Qiqihaer's economic development.

Qinshui coalfield as China's largest developed block of CBM resource has been extensively explored and developed, but receives less research in its Yuxi well field. This paper, based on its No.3 coal seam geology, studies its gas and CBM occurrence, and relation among gas content and coal metamorphism, coal thickness, buried thickness, coal bed top and bottom and structure, and applies simulation to forecast ground fractured vertical well gas production and recovery, assesses the ground pumping potential of No.3 coal seam. Results show that the structures are simple with less faults, thick coal seam, medium buried depth, high gas content, good permeability, strong absorbability, and favorable reservoir geology. The well field is a monocline with compact top and bottom, good for gas enrichment. Gas content rises as thickness, buried depth and coal metamorphism increase. It is predicted that the vertical fractured well would have an accumulative gas production up to 410.53×10^4 m^3 in 15 years at a recovery at 60%, and the working face gas content may be lowered below 8 m^3/t. This research offers references for CBM development and gas controls in Yuxi well field.  

 According to USGS and some websites data,it generally shows a good status in China’s silver resource development and utilization with silver reserve ranking ahead and production ranking top in the world. China is a big country for silver, but there are issues during silver development and utilization, such as less guarantee in silver resource, irrational silver industrial structure, low metallurgical technology and low recovery rate. China shall optimize industrial policies and structures, carry out a protective mining, raise resources utilization rate and promote a sustainable development.