黑土保护与利用技术模式探索及对策OA

With the protection practices in the northeastern black soil region as the target,a systematic review was con-ducted on the current degradation status of black soil.The core essence and implementation effects of typical technical paradigms such as the Sanjiang Model、Beidahuang Model、Lishu Model and Longjiang Model were explored in depth.The current practical challenges faced by black soil protection work,such as the lagging infrastructure construction and the difficulty in controlling soil erosion,were also analyzed in depth.Targeted countermeasures and suggestions were proposed from five dimensions,including improving the investment mechanism,strengthening technological support ca-pabilities,enhancing ecological governance efforts,establishing a legal supervision system,and increasing the participa-tion enthusiasm of relevant entities.The aim is to provide practical and feasible practical references for the sustainable u-tilization of soil resources in the northeastern black soil region,and to provide reference basis for subsequent regional ag-ricultural green development and food security protection work.