论文Frontiers in Sustainable Food Systems8月25日 · 周二Part-time farming and cultivated land quality protection among large-scale farmers: a U-shaped relationship—evidence from China研究发现兼业程度与耕地质量保护行为呈U型关系，转折点在非农收入占比52.5%。大田作物#耕地保护#兼业农户#规模经营+172 分阅读 1
