lush vegetation and clear lake water at chongqing tongluoshan mining par

pond wetland tree reflection grass water nature river wilderness stream flower leaf plant green lake woodland autumn vegetation chongqing tongluoshan mining park ecological restoration pit biodiversity sustainable development landscape natural beauty tranquility environmental sustainability limestone ecosystem recreational area geological features flora fauna habitat urban ecology scenic view conservation tourism outdoor activities education historical significance local economy community engagement quality air balance biodiversity enhancement infrastructure resources ecosystem services rural awareness projects habitat flora diversity fauna practices health landscape beauty