金菊良,原晨阳,蒋尚明,许浒.基于水量供需平衡分析的江淮丘陵区塘坝灌区抗旱能力评价[J].水利学报,2013,44(5): |
基于水量供需平衡分析的江淮丘陵区塘坝灌区抗旱能力评价 |
Assessment of drought resistance ability for pond and retaining dam irrigated area of Jianghuai hilly area based on water supply and demand balance analysis |
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DOI: |
中文关键词: 塘坝灌区 抗旱能力评价 农业灌溉 灌溉需水量 可供水量 江淮丘陵区 |
英文关键词: pond and retaining dam irrigated area assessment of drought resistance ability agricultural irrigation irrigation water demand available water supply Jianghuai hilly area |
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中文摘要: |
综合考虑气象条件、农业种植结构及塘坝建设情况,提出了基于水量供需平衡分析的塘坝灌区抗旱能力概念及其计算模型。应用结果表明:江淮丘陵区5地市及全区塘坝灌区抗旱能力在20世纪60年代达到了历史上较高的水平,此后呈波动下降趋势,至21世纪初又有所提高,客观地反应了50年代至今江淮丘陵区塘坝灌区抗旱能力的历史演变特征;塘坝塘容、作物水旱比和复种指数对塘坝灌区抗旱能力影响较大,建议从增加塘坝蓄水量、调整种植结构合理性两方面采取供需双侧管理措施来进一步提高塘坝灌区抗旱能力。该模型直观,计算结果符合实际情况,可应用于塘坝灌区抗旱能力计算。 |
英文摘要: |
Accurate assessment of drought resistance ability for pond and retaining dam irrigated area of Ji?
anghuai hilly area is of great significance in formulating scientific plans of drought management, adjusting
reasonable crop growth structure in the area, and suggesting the ordered construction of pond and retaining
dam engineering. The concept and calculating model of pond and retaining dam irrigated area drought resis?
tance ability were presented in consideration of meteorology,crop growth structure,pond and retaining dam
construction. The achieved results indicate that the pond and retaining dam irrigated area drought resistance ability of five cities and the area had reached maximum in the 1960s, and then decreased with fluctuation, at the beginning of the 21st century, the tendency have slightly increased. The model objectively shows the progress of drought resistance ability for pond and retaining dam irrigated area in Jianghuai hilly area from 1950s to the beginning of the 21st century. The elements that influence resistance ability for pond and retaining dam irrigated area include the capacity of pond and retaining dam,the paddy field and dry-farming grow proportion, multiple-crop index. For increasing the drought resistance ability of pond and retaining dam irrigated area,the measures of enhancing the capacity of pond and adjusting the crop growth structure should be implemented. With the advantages of intuition and conforming to reality, the model is fit to assess the drought resistance ability of pond and retaining dam irrigated area. |
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