农学学报2025，Vol.15Issue(9)：21-29,9.
宁晋泊—大陆泽低平原区耕地质量评价及土壤养分状况分析研究
Quality Evaluation of Cultivated Land and Soil Nutrient Status in Ningjinpo-Daluze Low Plain Area
摘要
Abstract
Through the 2022 Hebei Province Farmland Quality Evaluation Project,data from farmland quality monitoring points in eight counties of the Ningjinbo-Daluze low plain area were summarized and analyzed to evaluate the quality of farmland and soil nutrient status in the region.Using the grid method to evenly arrange sample evaluation units,the five-point method was adopted to collect cultivated soil samples from the surface layer(0-20 cm),and laboratory tests were conducted according to the soil testing series standards.Referring to the National Farmland Quality Grade Evaluation Index System of the Ministry of Agriculture and Rural Affairs,the weight of the indicators was determined.For numerical indicators of organic matter,total nitrogen,available phosphorus,and available potassium,the membership degree was determined by establishing functional relationships.For other conceptual indicators,the Delphi method expert scoring was used to give the membership degree,and the cumulative method was used to calculate the comprehensive index of arable land quality to obtain the arable land quality grade.The results showed that the average quality grade of cultivated land in the area was 3.51,with the main cultivated land grades being third and fourth grade.The third grade cultivated land was the main body,with an area of 140191 hm2,accounting for 49.44%of the total cultivated land area in the area.The overall level of nutrients in the cultivated land in this area was relatively high,all of which were above level three.Nutrients were evenly distributed within the region,and the maximum values of organic matter,total nitrogen,available phosphorus,and available potassium appeared around the ancient Daluze marsh land.By analyzing the factors affecting the quality evaluation of cultivated land,such as irrigation guarantee,the texture and configuration of the plow layer,and the reserve of organic matter content,measures and suggestions for maintaining the quality level of cultivated land in the region were proposed,providing reference for soil nutrient monitoring,improving cultivated land quality,protecting ecological balance,and maintaining sustainable agricultural development in other low plain areas in Hebei Province.关键词
宁晋泊—大陆泽/低平原区/耕地质量/土壤养分/综合指数Key words
Ningjinbo-Daluze/low plain area/quality of cultivated land/soil nutrient/comprehensive index分类
农业科技引用本文复制引用
孙育强,方竹,肖辉,张建发,贾莹,李丹琳,赵燕娜..宁晋泊—大陆泽低平原区耕地质量评价及土壤养分状况分析研究[J].农学学报,2025,15(9):21-29,9.基金项目
河北省2022年中央财政第二批农业转移支付项目(2022年耕地保护与质量提升项目)(冀农财发[2022]24号) （2022年耕地保护与质量提升项目）
