期刊论文

Evaluation of Farmland Fertility Based on High-standard Farmland Construction:A Case Study of the Newly Increase Grain Production Capacity Field Project in Shimen County

中文

中国农学通报

1000-6850

2019

35

17

54-59

湖南省财政厅项目“高标准农田建设耕地地力评定规范”[湘财农指(2016)45号].

本校为第一机构

以湖南省石门县新增粮食生产能力田间工程建设项目为例,对项目区建设前和建设后的耕地地力进行综合评定,选取地形部位、排水能力、灌溉能力、障碍因素、剖面构型、耕层厚度、耕层质地、有机质、有效磷、缓效钾共10个评定因子构建耕地地力评定指标体系和层次模型,采用层次分析法和特尔斐法确定评定因子隶属度和综合权重,运用指数法计算项目区建设前、后的耕地地力指数及其变化值,确定耕地地力等级,测算出耕地综合生产能力提升量为1860 kg/(hm~2·a),为高标准基本农田建设和耕地地力提升提供可行性建议。

By taking the newly increase grain production capacity field project in Shimen County of Hunan Province as an example,the farmland fertility of pre-construction and post-construction in the project area was evaluated.A total of 10 evaluation factors including topographic position,drainage capacity,irrigation capacity,obstacle factors,profile configuration,topsoil thickness,topsoil texture,organic matter,available phosphorus and slow-release K were selected to construct the farmland fertility evaluation index system and the hierarchical model.Th...