1961—2020年中国北方向日葵种植区干湿变化特征及其成因分析
|
Characteristics of dry and wet changes in sunflower growing areas in northern China and their causes from 1961 to 2020
|
图1. 研究区及296个气象站点分布 |
Fig.1. Study area and distribution of 296 meteorological stations |
![]() |