盐碱地改良与耐盐碱生物育种技术研究进展OA

The area of saline-alkali land in China is large and widely distributed.It is of great significance to ensure food security,promote ecological protection and realize sustainable agricultural development by improving and tapping its agricultural potential.This paper summarizes the formation mechanism and types of saline-alkali land,systemati-cally introduces the characteristics of engineering improvement technology,chemical improvement technology and bio-logical improvement technology of saline-alkali land improvement technology,expounds the mechanism of salt-tolerant biological breeding,and compares the advantages and disadvantages of traditional salt-tolerant biological breeding tech-nology and efficient breeding technology.The key problems encountered in the process of breeding technology industri-alization are high R&D cost,long cycle,significant and complex regional adaptability contradiction,low market acceptance and imperfect supporting technology system.In the future,it is necessary to increase technological innova-tion,promote the development of low-cost environmental protection modifiers and the application of intelligent irriga-tion systems;strengthen interdisciplinary integration and promote the integrated development of'breeding,cultivation and improvement';improve the policy support system,through the subsidy mechanism and cooperation model to mo-bilize the enthusiasm of all parties to participate.