PDF(1933 KB)
PDF(1933 KB)
PDF(1933 KB)
近20年淮河生态经济带粮食生产效率时空变化与影响因素
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Spatio-temporal variation and influencing factors of grain production efficiency in Huaihe Eco-Economic Belt in recent 20 years
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