基于大數(shù)據(jù)分析的農業(yè)氣候與農作物產(chǎn)量變化研究
[Abstract]:[objective] as a large agricultural country, China's agricultural output directly affects the future development of our country, and climate change directly affects the change of agricultural output. [methods] based on the effect of agricultural climate on crop yield, this paper introduces the effects of climate change on crop yield from the perspective of agricultural climate change, and takes the rice growing areas in North, East and Northeast China as examples. Through the principal component factor analysis, the index factors such as precipitation, temperature, illumination and solar radiance were set up, and C-D-A model was established. [results] precipitation, temperature and light had obvious effects on crop yield. Among them, arid weather has the greatest influence. [conclusion] the model is proved to be reliable by empirical analysis in order to provide theoretical basis for the protection and improvement of crop yield under various weather conditions.
【作者單位】: 天津職業(yè)大學基礎課部;
【基金】:國家自然科學基金“可重圖、賦權圖和隨機圖中的拓撲指標”(11001196) 天津市哲學社會科學研究規(guī)劃項目“天津市高職院校不同生源學生的學習差異與行為的多維比較研究”(TJJXWT11-040) 天津職業(yè)大學科研基金項目“前向型神經(jīng)網(wǎng)絡權值和結構的確定方法研究”(20122108)
【分類號】:S162
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