为探明旱地改水田(旱改水)土地的适宜性,以江西省安远县车头镇的车头村(605/013)和南屏村(89/013),孔田镇的新塘村(248/013、237/013、214/013)和上寨村(223/013、242/013)土地整治项目为例,根据项目区实际情况,选取积水状况、排水条件、灌溉条件、土壤pH、耕层厚度、土壤养分、土壤质地、水土保持和对外道路交通条件作为评价因子,用特尔菲法确定各项评价因子的权重,以地类图斑为评价单元,计算适宜性评价指数,参照《江西省旱地改造为水田土地整治项目建设标准》进行等级评价。结果表明:地类图斑号605/013、89/013、248/013、237/013和223/013 5个评价单元为高度适宜等级,适宜性评价指数为4.05~4.46分;地类图斑号214/013和242/013 2个评价单元为中度适宜等级,适宜性评价指数分别为3.80分和3.89分。各评价单元旱改水后均高度或中度适宜种植水稻。
The waterlogging condition,drainage condition,irrigation condition,soil pH,topsoil thickness,soil nutrient,soil texture,soil and water conservation and outgoing road traffic condition of paddy field transformed from dry land in Chetou and Nanping Village of Chetou Town and Xintang and Shangzhai Village of Kongtian Town are firstly evaluated,then the weights of different evaluation factors are determined by Delphi method to calculate land suitability indexes and finally their suitability grade is evaluated according to Jiangxi Land Reclamation Project Construction Standard of Paddy Field Transformed from Dry Land.Results:The suitability grade of 605/013,89/013,248/013,237/013 and 223/013 pattern spots is at high level and their suitability evaluation index is 4.05~4.46.The suitability grade of 214/013 and 242/013 pattern spots is at moderate level and their suitability evaluation index is 3.80 and 3.89 respectively.The paddy field transformed from dry land of different evaluation units is suitable to plant rice highly or moderately.