@article{cropland-zoning,
  title = {Cropland zoning based on district and county scales in the black soil region of northeastern China},
  author = {Li, Y. and Wang, L. and Yu, Y. and Zang, D. and Dai, X. and Zheng, S.},
  year = {2024},
  journal = {Sustainability},
  volume = {16},
  number = {8},
  pages = {3341}
}