A trial with different tending methods was conducted in a 7 year old loblolly pine plantation on a low hill at Wengyuan county of Guangdong province.

 
  • 在广东省翁源县江尾镇低丘赤红壤上,对7年生火炬松人工林的抚育强度、季节和次数进行了研究。
今日热词
目录 附录 查词历史