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水土流失的主要根源在于人类不合理的生产活动，因此水土保持的首要任务是预防。预防的主要措施有：①改革现行土地政策，调整政府目标；②调整产业政策，减少土地开垦；③实行土地封禁，恢复草木植被；④对严重流失区实行移民封禁，然后用有限的资金对有限的人类活动区域进行高效开发、高标准治理。此外，还对近年来在“四荒”拍卖中存在的问题提出相应对策和建议。
Soil and water loss is mainly due to unreasonable human production activities, so water and soil conservation’s primary task is prevention. The main measures for prevention are as follows: ① reforming the current land policy and adjusting the government’s goals; ② adjusting industrial policies to reduce the reclamation of land; ③ imposing land closures and restoring vegetation and vegetation; ④ imposing ban on immigrants in seriously lost areas and then using limited funds to limit Human activity area for efficient development, high standards of governance. In addition, we also put forward corresponding countermeasures and suggestions on the existing problems in the “Four Shortages” auctions in recent years.