引用本文: | 鲁春霞. 冀西北自然要素变化与水源涵养功能保持研究. 草业科学, 2020, 37(7): 1215-1217 . doi: 10.11829/j.issn.1001-0629.2020-0439 |
Citation: | LU C X. Changes of natural elements and maintaining of water conservation function in northwestern Hebei Province. Pratacultural Science, 2020, 37(7): 1215-1217 . doi: 10.11829/j.issn.1001-0629.2020-0439 |