摘要
Abstract
The index systems of farmland landcapability grading were established,both the form causation and distribution area of medium and low-yield land in Shuangpai County were made clearly,by using the method of field investigation and sampling,indoor analysis,GIS,and maths model, combining with the knowledge of soil sciences,geography,ecology. 6 types of medium and low-yield land were defined that were the type of stagnogley paddy field,the type of waterlogging and drainage,the type of barren and fostering,the type of irrigation improvement,the type of slopeland changing terrace and the hindrance layering. The area of medium and low-yield land was 5 807.86 hm2 and accounted for 61.58%of total area of farmland in Shuangpai County. The countermeasures of improvement and use were suggested according to the form causation of medium and low-yield land.关键词
中低产田土/成因/类型/改良利用/对策/湖南双牌Key words
medium and low-yield land/causation/types/improvement and use/countermeasures/Shuangpai Hunan分类
农业科技
