洮惠渠灌區(qū)不同尺度耗水監(jiān)測(cè)研究

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摘要 在對(duì)甘肅省洮惠渠灌區(qū)和典型地塊進(jìn)行引退水監(jiān)測(cè)試驗(yàn)的基礎(chǔ)上，采用引排差法開展不同尺度耗水系數(shù)率定工作。結(jié)果顯示，灌區(qū)和典型地塊2016年耗水系數(shù)分別為0.721和0.571。灌區(qū)和典型地塊耗水系數(shù)表現(xiàn)出一定的尺度效應(yīng)，灌區(qū)尺度上耗水系數(shù)明顯高于典型地塊尺度。

關(guān)鍵詞 耗水系數(shù);監(jiān)測(cè)試驗(yàn);引排差法;尺度效應(yīng);洮惠渠灌區(qū)

中圖分類號(hào) TV 211;TV 213  文獻(xiàn)標(biāo)識(shí)碼 A  文章編號(hào) 0517-6611（2022）09-0188-06

doi：10.3969/j.issn.0517-6611.2022.09.047

開放科學(xué)（資源服務(wù)）標(biāo)識(shí)碼（OSID）：

Monitoring on Water Consumption at Different Scales in Taohuiqu Irrigation Area

L Wen-xing，CHANG Yuan-yuan，LIU Dong-xu et al

（Yellow River Institute of Hydrology and Water Resources，Zhengzhou，Henan 450004）

Abstract Based on the monitoring experiment on the water diversion and return in Taohuiqu irrigation area and typical plots in Gansu Province，the water consumption coefficient at different scales was calculated by  diversion and discharge difference method. The results showed that the water consumption coefficients of irrigation area and typical plots in 2016 were 0.721 and 0.571 respectively. The water consumption coefficients of irrigation area and typical plots showed a certain scale effect，and the water consumption coefficient in irrigation area was obviously higher than that of typical plots.

Key words Water consumption coefficient;Monitoring experiment;Diversion and discharge difference method;Scale effect;Taohuiqu irrigation area

甘肅省水資源時(shí)空分布不均衡，河西內(nèi)陸河流域土地面積占全省土地面積近60%，但水資源量?jī)H占全省水資源量的19%[1];甘肅省黃河流域?qū)俑珊蛋敫珊档貐^(qū)，黃河流域人口占全省總?cè)丝诘?0%以上，自產(chǎn)水資源量不到全省水資源量的50%[2]，水資源供需矛盾突出已成為甘肅省國(guó)民經(jīng)濟(jì)和社會(huì)發(fā)展的最大制約因素。（剩余8646字）