EGU2015-7596.pdf

Okay, the user wants a detailed but concise summary of this abstract in English. Let me start by reading through the original text carefully.

The main topic is the impact of shale gas development on water resources in Fuling, China. The authors are from different institutions, but the key points are about water consumption and wastewater generation. The study compares Fuling's water usage to the U.S., noting that it's higher. Also, they mention that 2-20% of the water flows back, which isn't treated properly, leading to contamination. The water quality issues include TSS and COD exceeding China's regulations. The conclusion is that while shale gas is low-carbon, its water use and pollution require strict monitoring and coordination to balance economic, energy, and environmental needs.

I need to make sure the summary captures all these elements without extra fluff. Start with the title and authors, then the context of shale gas development in the U.S. and China's plan. Mention the water consumption per well, the percentage of flowback, and the specific contaminants. Highlight the study's findings on TSS and COD. Finally, the conclusion about the need for monitoring and coordination. Keep it under the same language, no markdown, just plain text. Check for any technical terms that need to be included, like hydraulic fracturing, but make sure it's concise. Avoid any titles or introductory phrases. Let me structure this step by step to ensure all key points are covered succinctly.

Shale gas development in Fuling, China, has significant implications for water resources. As a low-carbon energy source, shale gas gained traction in the U.S. through hydraulic fracturing (fracking) innovations, leading to increased production and reduced reliance on fuel imports. China aimed to extract 6.5 billion cubic meters of shale gas by 2015, but this process requires substantial water use, with an average of 30,000 cubic meters per well—higher than in the U.S.—intensifying competition for water among industrial, agricultural, and domestic sectors. Post-extraction, 2–20% of water is returned to the ground, often untreated, introducing heavy metals, acids, pesticides, and other toxic substances into water and land systems, exacerbating contamination risks. Water quality monitoring in Fuling revealed that Total Suspended Solids (TSS) and Chemical Oxygen Demand (COD) levels exceeded China’s regulatory standards. While shale gas offers energy benefits, its high water demand and potential environmental pollution underscore the urgent need for stringent monitoring and coordinated management to balance economic growth, energy needs, and ecological protection.