“非粮化”利用下耕地质量影响研究——以长沙县江背镇为例
Research on the Impact of “Non-GrainProduction” Utilization on Farmland Quality—Taking Jiangbei Town in Changsha County as an Example

“非粮化”是指农民将耕地用于种植不属于粮、棉、油、糖、蔬菜和饲草饲料等类型的农作物，导致耕地转为林地、园地等其他类型农用地的行为。当前，对于各种类型耕地“非粮化”利用对耕地质量的影响程度，国内暂时缺少必要的数据基础、系统研究及案例经验。笔者以长沙县江背镇为例，结合研究区耕地“非粮化”利用类别，以土壤pH、容重、有机质、有效磷、速效钾的变化为角度，对比粮食种植地块与“非粮化”利用5~10年后的耕地质量，分析不同类型“非粮化”利用对耕地质量的影响，为优化耕地“非粮化”利用方式、提升耕地质量提供治理思路，避免“一刀切”治理非粮化问题。
Non-grain production refers to the practice of farmers using arable land for planting crops that do not belong to the categories of grain, cotton, oil, sugar, vegetables, or forage, resulting in the conversion of arable land into other types of agricultural land, such as forests and gardens. Currently, there is a lack of necessary data foundation, systematic research, and case experience in China regarding the impact of various types of non-grain utilization of arable land on the quality of arable land. Taking Jiangbei Town in Changsha County as an example, the author combines the research area’s category of “non-grain production” utilization of arable land, and compares the quality of arable land after 5~10 years of “non-grain production” utilization with changes in soil pH, bulk density, organic matter, available phosphorus, and available potassium. The author analyzes the impact of different types of “non-grain production” utilization on arable land quality, optimizes the “non-grain production” utilization of arable land, and provides governance ideas to improve arable land quality and avoid the “one size fits all” governance of non-grain problems.