[Structural deficiencies in subtropical mountain areas owing to the introduction of American agricultural products during the Ming and Qing dynasties].
Lan
Y
Y
D000383:Agriculture / Q000191:economics / Q000193:education / Q000266:history; D002681:China / Q000208:ethnology; D018556:Crops, Agricultural / Q000191:economics / Q000266:history; D004467:Economics / Q000266:history; D004777:Environment; D005502:Food / Q000191:economics / Q000266:history; D005523:Food Supply / Q000191:economics / Q000266:history; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D027723:Ipomoea batatas; D009656:North America / Q000208:ethnology; D011198:Solanum tuberosum / Q000191:economics / Q000266:history; D013020:South America / Q000208:ethnology; D003313:Zea mays / Q000191:economics / Q000266:history