内蒙古降水分布及其对马铃薯灌水量的影响

Q3 Agricultural and Biological Sciences
Hu Qi, Pan Xue-biao, Shao Chang-Xiu, Zhang Dan, Yang Ning
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引用次数: 6

摘要

马铃薯是内蒙古的优势作物,其生长和产量主要受水分条件的制约。研究内蒙古地区降水分布和马铃薯生育期需水量规律,可为内蒙古马铃薯生产的合理布局和水分的合理利用提供依据,实现稳定产量。利用1961 ~ 2010年内蒙古46个气象站的逐日气象资料,计算了不同降雨年的有效降水量及其分布、马铃薯生育期蒸散发(ET)和灌水量。结果表明:马铃薯生育期有效降水量为25 ~ 240mm,空间分布不均匀;ET为300-700mm和400mm等高线,从呼伦贝尔北部开始,横跨锡林郭勒盟北部,东至兴安县。灌水量从东到西呈增加趋势,灌水量等高线沿经度分布。在1500m3/ ha灌溉量等高线以东的呼伦贝尔和兴安县北部适宜种植马铃薯,有效降水基本能满足马铃薯常年需水量。另一方面,内蒙古西部和北部有效降水不足,不适合种植马铃薯。与正常年份相比,干旱年份降水减少,ET增加,马铃薯灌水量平均增加40.4%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution of Precipitation in Inner Mongolia and its Impact on Potato Irrigation Amount
Potato is the dominant crop in Inner Mongolia,its growth and yield is mainly restricted to water conditions.Studying the distribution of precipitation in Inner Mongolia and water requirement rules during potato growth period can provide the basis for the rational distribution of potato producing in Inner Mongolia and rational utilization of water to achieve stable yield.Based on the daily meteorological data of 46 meteorological stations from 1961 to 2010,authors calculated the effective precipitation and its distribution in Inner Monglia,evapotranspiration(ET) during potato growth period and irrigation amount in different rainfall years.The results showed that the effective precipitation was 25 240mm during potato growth period and its spatial distribution was non-uniform.ET was 300-700mm and 400mm ET contour started from northern Hulun Buir,across northern Xilin Gol league,east to Hinggan league.As for the irrigation amount,there was an increasing trend from east to west and the irrigation amount contours were distributed by longitude.Hulun Buir and northern Hinggan league,east to the 1500m3/ ha irrigation amount contour,were suitable for planting potato,where effective precipitation could basically meet potato water requirement in normal years.On the other hand,it was not suitable for planting potato in western and northern Inner Mongolia,where effective precipitation was insufficient to support potato producing.Compared to normal years,dry years had less precipitation and more ET,and the potato irrigation amount increased by an average of 40.4%.
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来源期刊
中国农业气象
中国农业气象 Agricultural and Biological Sciences-Forestry
CiteScore
2.00
自引率
0.00%
发文量
4057
期刊介绍: Chinese Journal of Agrometeorology, formerly known as Agricultural Meteorology before 1988, is an academic journal for practitioners in agriculture and related industries, edited and published by the Editorial Department of CJA,sponsored by Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences (formerly known as the Agrometeorology Research Institute,CAAS). Co-sponsored by:China Agrometeorology Society, Co-Sponsored by Chinese Association of Agricultural Science Societies (CAASS). Prof. Mei Xu-rong is Chairman of the Board and Editor-in-Chief. CJA is published Monthly in Chinese with English title, abstract and reference. Chinese Journal of Agrometeorology commits to find experience and methods in sufficiently utilizing local climate and weather conditions to promote agricultural production, preventing and reducing agricultural disasters through studying the current characteristics and change laws of local climate resources, and the relationship among climate conditions and the production of agriculture, forestry and aquaculture and natural disasters such as crop diseases and insect pests, drought and waterlog, etc. CJA publishes original research articles, research report and peer-review about the influence of climate resources, climate change and environment factors on agriculture,forestry and fisheries. Articles discuss scientific problems about regional climate change, agricultural meteorological disaster, drought and saving-water agriculture, farmland microclimate,etc. There are six sections in CJA: -Agroclimatic Resources and Climate Change -Agroenvironment -Agrobiological Meteorology -Agrometeorological Disaster -Application of Information Technology -Agrometeorological Information
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