The Natural Resources Bureau belongs to the national land planning system and does not involve this part according to its functions and powers. So it's a little awkward to contact him. You can contact the relevant comrades of the Agricultural and Rural Bureau.
If you want to know the specific local poplar varieties, you can consult the local agricultural technology station.
If purchasing, it is recommended to go to the local market or Shuyang and other places to find it. Or contact by means of bidding entrustment.