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针对制定盐碱下湿地农业开发计划的需要,本文提出按危害性质、危害程度、PH等级、积盐特征和积盐(或碱化)强度五项指标的土镶盐渍类型划分方法。危害性质分为湿害、盐害、盐碱害、碱害和隐盐害五类;危害程度和PH等级分为四级;积盐特征分为表聚型、上聚型、体聚型、底聚型和脱盐型五种;积盐(或碱化)强度分为强、弱两级。这一方法应用于大同盆地的盐碱下湿地开发,共划分出102种盐渍类型,查明各种类型的面积及分布情况,提出治理开发建议,取得良好效果。
In order to develop the plan of agricultural development under saline-alkali wetlands, this paper proposes a method for the classification of soil-borne salt types according to the characteristics of harmfulness, harm degree, PH grade, salt accumulation characteristics and salt accumulation (or alkalization) strength. Harmful nature is divided into five categories: wet damage, salt damage, salinization damage, alkali damage and salt injury harm; PH levels and hazard level is divided into four; salt accumulation characteristics are divided into table clustering, The end of poly-type and desalination of five; salt (or alkalization) strength is divided into strong and weak two. This method was applied to the development of wetlands under salt and alkali in Datong Basin. A total of 102 types of salinization were delineated. Various types of area and distribution were identified, and suggestions for harnessing development were put forward. Good results were obtained.