PDF(545 KB)
PDF(545 KB)
PDF(545 KB)
基于GIS技术的中国农田磷素养分收支平衡研究
GIS Study of Phosphorus Nutrient Input/Output in China at the County Level
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |