地处长江上游的四川省,幅员面积占长江上游流域面积的50%。10年前,由于过度开采,我省每年给长江带来6亿吨泥沙。10年西部大开发后的今天,通过退耕还林等三大生态工程,营造公益林8千万亩,输入长江的泥沙量减少近8成,在长江上游建起了一道生态屏障。 Located in the upper reaches of the Yangtze River in Sichuan Province, covers an area of ​​50% of the upper reaches of the Yangtze River Basin. Ten years ago, due to over-exploitation, our province brought 600 million tons of silt to the Yangtze River every year. Ten years after the grand western development, through the three major ecological projects such as returning farmland to forests, 80 million mu of public welfare forests were built, the sediment input to the Yangtze River decreased by nearly 80%, and an ecological barrier was built in the upper reaches of the Yangtze River.