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长江中下游地区耕地复种指数变化与国家粮食安全
金姝兰 侯立春 徐磊
The Relationship of Multiple Cropping Index of Arableland Change and National Food Security in the Middle and Lower Reaches of Yangtze River
中国农学通报 . 2011, (17): 208 -212 .  DOI: 10.11924/j.issn.1000-6850.2011-0370