2006年8月,林凌、刘宝珺、马怀新、刘世庆等50余名四川籍学者们自费出版了一本《南水北调：西线工程备忘录》的论文选集,从多方面发出对“西线”工程可行性、可靠性的质疑,并迅速得到了四川民间的热烈响应,时称“四川民间保水运动”。 In August 2006, more than 50 Sichuan scholars and scholars, including Lin Ling, Liu Baojun, Ma Huaixin and Liu Shiqing, published a collection of essays at their own expenses for the “South-to-North Water Diversion Project: Memorandum on the Western Line Project.” They issued opinions on the feasibility of “West Line” project from many aspects , The reliability of the question, and quickly got the warm response of Sichuan folk, sometimes called “Sichuan folk water conservation movement.”