气候趋势及其对印度阿鲁纳恰尔邦水稻作物参考蒸散量和作物需水量的影响

Q3 Agricultural and Biological Sciences

Journal of Agrometeorology Pub Date : 2024-06-01 DOI:10.54386/jam.v26i2.2510

Lachi Drema, S. Gautam, S. Rawat

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引用次数: 0

摘要

阿鲁纳恰尔邦是印度东北部最大的邦之一，受季风影响，属亚热带湿润气候。因此，研究人员利用阿鲁纳恰尔邦 14 个县 21 年（2001-2021 年）的数据，试图了解该邦的气候条件及其对水稻作物参考蒸散量（ETo）和作物需水量（CWR）的影响。结果显示，全邦最高气温从 130 摄氏度到 300 摄氏度不等，最低气温从 30 摄氏度到 200 摄氏度不等，年降雨量从 1200 毫米到 2700 毫米不等。不同地区的最高气温呈下降趋势，而最低气温和降雨量则呈上升趋势，且上升幅度不一。年平均参考蒸散量（ETo）介于 900 毫米和 1400 毫米之间。利用 CROPWAT 模型估算的水稻作物需水量显示，该州不同地区的作物需水量在 508 毫米至 731 毫米之间存在较大的空间差异。

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Climatic trends and its impact on reference evapotranspiration and crop water requirement of rice crop in Arunachal Pradesh, India

Arunachal Pradesh in one of the largest states in north eastern states of India, having subtropical humid climate influenced by monsoon. An attempt has therefore, been made to understand the climatic conditions of the state and its influence on the reference evapotranspiration (ETo) and crop water requirement (CWR) of rice crop, using 21 years (2001-2021) data of 14 districts of Arunachal Pradesh. The results revealed that the maximum temperature varied from 130C to 300C while minimum temperature varied from 30C to 200C and annual rainfall varied from 1200 mm to 2700 mm across the state. The maximum temperature was found to decrease while the minimum temperature and rainfall were found to increase with varying significant levels in different districts. The mean annual reference evapotranspiration (ETo) was found to vary between 900 mm and 1400 mm. The crop water requirement of rice estimated using CROPWAT model revealed a large spatial variation from 508 mm to 731 mm in different districts of the state.

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来源期刊

Journal of Agrometeorology 农林科学-农艺学

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Agrometeorology (ISSN 0972-1665) , is a quarterly publication of Association of Agrometeorologists appearing in March, June, September and December. Since its beginning in 1999 till 2016, it was a half yearly publication appearing in June and December. In addition to regular issues, Association also brings out the special issues of the journal covering selected papers presented in seminar symposia organized by the Association.