基于作物需水的灌溉用水量核算方法及应用 |
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作者姓名: | 温忠辉 张 刚 鲁程鹏 束龙仓 阿依古丽# 艾科拜尔 李 伟 |
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作者单位: | ( 1. 河海大学水文水资源与水利工程科学国家重点实验室, 南京210098; 2. 南京水利科学研究院, 南京210029) |
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基金项目: | 国家自然科学基金( 41172203; 41201029) ; 高等学校博士学科点专项科研基金( 20120094120019 ) ; 中国博士后科学基金面上资
助( 2013M 540410) |
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摘 要: | 用水量核算方法是最严格水资源管理制度实施的一项技术支撑。以山东济宁市梁山县为研究区,采用FAO(国际粮农组织)推荐的Penman-Monteith公式,计算了该县3种主要农作物的逐日作物需水量及净灌溉需水量。研究中考虑到研究区的作物种植面积、灌溉水利用系数等因素提出理论需水量和折算系数的概念,通过推求理论需水量与实际用水量的折算系数,对2011年和2012年梁山县灌溉用水量统计数据进行核算,核算的相对误差分别为0.08%和-1.52%,核算结果较好。
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关 键 词: | 灌溉用水量 作物需水量 净灌溉需水量 理论需水量 折算系数 |
Check method of irrigation water consumption and i ts application based on crop water requirement |
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Authors: | WEN Zho nghui ZH ANG Gang LU Chengpeng SH U Lo ngcang Ay iguli# Aikebaier LI Wei |
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Affiliation: | ( 1. S tate K ey L abor ator y of H y dr ology2Water Resour ces and H y dr aulic Eng ineer ing , H ohai Univer sity ,
N anj ing 210098, China; 2. Nanj ing H y dr aulic Resear ch I nstitute, Nanj ing 210029, China) |
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Abstract: | The check method o f w ater co nsumption is a technical suppor t fo r the strictest water r esources management system. In
this paper, the Penman2Mo nteith equation recommended by FAO w as adopted to calculate t he daily crop wat er requirement and
net irr igat ion wat er demand fo r the three main cr ops in Liang shan Co unty o f Jining City in Shandong Prov ince. The facto rs such
as cr op plant ing ar ea and irr ig ation w ater use coefficient wer e co nsidered in t his study and the concepts of theor etical w ater use
and co nv ersio n coefficient wer e pro po sed. T hroug h the calculation of the conver sion coefficient between the theo retical and actu2
al wat er use, the irr ig ation w ater consum ption r esults w ere checked fo r 2011 and 2012 in Liangshan County. The relat ive err or s
wer e 0. 08% and - 1. 52%, respect ively, indicating that the check results are accur ate. |
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Keywords: | irr ig ation w ater consumptio n cro p w ater r equirement net irr igation water demand theor etical water use conversio n
co efficient |
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