{
  "id": "agriculture_soil_001",
  "industry": "农业",
  "domain": "种植业",
  "task_type": "土壤检测数据异常解释",
  "label": "传感器埋深变化引发PH值异常",
  "input": "近期一块地块的PH值数据显示显著偏碱性，与周边地块数据不一致。",
  "cot_steps": [
    "检查传感器布设方式，确认数据采样深度。",
    "浅层土壤可能因施肥残留或蒸发引发碱化表层。",
    "该地块传感器因机械耕作被提升至表层5cm以内。",
    "表层PH较深层偏碱，系统未更新埋深参数。",
    "应重设传感器深度并校准检测算法。"
  ],
  "answer": "为传感器埋深过浅导致PH偏碱，建议恢复标准采样深度。",
  "key_variables": [
    "采样深度",
    "耕作扰动",
    "表层PH波动",
    "传感器埋设校准"
  ],
  "difficulty": "中等",
  "source": "智慧农业传感器布设指南"
}