Rediscovering an old ally helps Mayan farmers improve productivity.
mag（1990）
关键词
agricultural land,shifting cultivation,conservation,forestry,hedges,windbreaks,soil conservation,erosion,productivity
AI 理解论文
溯源树
样例
生成溯源树，研究论文发展脉络
Chat Paper
正在生成论文摘要
mag（1990）