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调查结果表明，由于地区间土壤种类、酸碱度、地势差异，上海稻田杂草的分布和危害有明显区域性。
The surveys showed that the weed distribution in rice fields in Shanghai was obviously various due to the differences of soil type, acid-base scale and terrain between areas.
上海在90年代初期正是这种潮流的领头羊，当时上海在一片稻田上开发浦东新区，打造了一个全国的金融和商业中心。
Shanghai led the way in the early 1990s by setting out to build a national financial and commercial hub on a stretch of rice paddy in an area called Pudong.
论文以2002年在上海五四农场稻田生态系统田间实验为基础，运用造林成本法、碳税法和工业制氧法对稻田生态系统气体调节功能及其价值进行研究。
In this study, we examined the gas regulation services supported by rice paddy ecosystems, based on the results of field experiments in Wusi Farm of Shanghai in 2002.
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