[第一节 植被](%E7%AC%AC%E4%BA%94%E7%AB%A0%E6%A4%8D%E8%A2%AB%E4%B8%8E%E5%9C%9F%E5%A3%A4/%E7%AC%AC%E4%B8%80%E8%8A%82%E6%A4%8D%E8%A2%AB.md) [第二节 土壤](%E7%AC%AC%E4%BA%94%E7%AB%A0%E6%A4%8D%E8%A2%AB%E4%B8%8E%E5%9C%9F%E5%A3%A4/%E7%AC%AC%E4%BA%8C%E8%8A%82%E5%9C%9F%E5%A3%A4.md)