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中文摘要：
论文把农业生产看作由农业产出、农业经济、农业生态、农业社会四个子系统组成的农业生产系统，并构建了农业生产系统的评价指标体系，利用主成分分析等方法评价了中国31个省市区的农业生产系统及其四个子系统可持续发展状况，另外还定量评价了四个子系统之间的相互关系。
英文摘要：
The agricultural production was regarded as agricultural product system which be made of four subsystems： agricultural production, agricultural economy, agricultural environment and agricultural society. Then the evaluation index system was established, Principal Component Analysis was used to evaluate the sustainable development of regional agricultural product of China and quantitatively evaluated the relationships between the four subsystems.
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同项目期刊论文
Seasonal trace-element and stable-isotope variations in a Chinese speleothem: The potential for high
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