人类对生物在利用和改造过程中,由于没有按照自然规律和经济发展规律办事,而遭到大自然的惩罚,出现“生态灾难”,我区坝上就是典型之一。如何控制生态灾难的继续发展,进而建设一个合理的生态系统,实为当务之急,也是造福子孙后代的重大工程。 Human beings have been punished by nature because of their failure to act in accordance with the laws of nature and economic development during their utilization and transformation. The “ecological catastrophe” has emerged and one of the typical examples is the dam on our own. How to control the continued development of ecological disasters and then build a rational ecological system is a top priority and a major project for the benefit of future generations.