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- W2350514251 abstract "Based on the 1971-2004 agricultural data of East China and the 1961-2004 daily mean temperature data from 26 local meteorological stations,this paper analyzed the relationships between farming system and effective accumulated temperature in East China.The results showed that in 1961-2004,the date of daily mean temperature rising steadily over 10 ℃ came earlier,while that dropping steadily below 10 ℃ was later,resulting in a steadily increased effective accumulated temperature.The multiple cropping indices in Zhejiang,Shanghai and Jiangsu decreased with increasing accumulated temperature,and the correlation coefficients were-0.605,-0.582,-0.615(n=34),respectively;while the indices in Shandong and Anhui were in adverse,with the correlation coefficients of 0.655 and 0.441(n=34),respectively.The grain yield per unit area increased with increasing accumulated temperature,and the correlation coefficients for Fujian,Jiangxi,Zhejiang,Shanghai,Anhui,Jiangsu and Shandong were 0.602,0.370,0.454,0.761,0.518,0.621 and 0.489(n=34),respectively.The planting area of grain crops decreased,while that of vegetables,melons,economic forests and oil plants increased with increasing accumulated temperature.The consumptions of fertilizers and pesticides also increased with increasing accumulated temperature." @default.
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- W2350514251 date "2008-01-01" @default.
- W2350514251 modified "2023-09-22" @default.
- W2350514251 title "Relationships between farming system and effective accumulated temperature in East China" @default.
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