本文選題：里下河平原 + 農(nóng)田澇災(zāi)　； 參考：《排灌機(jī)械工程學(xué)報(bào)》2017年10期

【摘要】：為研究江蘇里下河平原湖區(qū)澇災(zāi)風(fēng)險(xiǎn)并提出應(yīng)對(duì)策略,以高郵運(yùn)東地區(qū)為例,采用綜合評(píng)價(jià)法構(gòu)建了農(nóng)田澇災(zāi)風(fēng)險(xiǎn)評(píng)估模型,并分析了現(xiàn)狀和不同措施下各個(gè)圩垸的農(nóng)田澇災(zāi)綜合風(fēng)險(xiǎn)度.該模型考慮了致災(zāi)因子、孕災(zāi)環(huán)境、抗災(zāi)能力和承災(zāi)體脆弱性4個(gè)方面的影響因素,其中致災(zāi)因子包括梅雨強(qiáng)度,孕災(zāi)環(huán)境包括相對(duì)地形高程、高程相對(duì)標(biāo)準(zhǔn)差、滯澇水面率和產(chǎn)流能力,抗災(zāi)能力受堤防擋水能力、排水河道密度和泵站抽排能力3個(gè)指標(biāo)的影響,承災(zāi)體脆弱性通過規(guī)劃排澇模數(shù)指標(biāo)反映,采用層次分析法確定各指標(biāo)權(quán)重.結(jié)果表明:現(xiàn)狀條件下該區(qū)域只能應(yīng)對(duì)3 a一遇梅雨,當(dāng)遭遇20 a一遇梅雨時(shí),84.37%的區(qū)域處于高風(fēng)險(xiǎn).將滯澇水面率提高到20%,同時(shí)將泵站抽排流量和堤防高度提高到規(guī)劃水平,可以保證該區(qū)域能夠應(yīng)對(duì)10 a一遇以下梅雨強(qiáng)度的澇災(zāi),在遭遇20 a一遇梅雨時(shí),高風(fēng)險(xiǎn)面積比例控制在10.29%.
[Abstract]:In order to study the risk of waterlogging disaster in the lake area of Lixiahe Plain in Jiangsu Province and put forward some countermeasures, a comprehensive evaluation method was used to construct a model for evaluating the risk of waterlogging disaster in farmland. At the same time, the comprehensive risk of farmland waterlogging is analyzed under the present situation and different measures. In this model, four factors are considered, such as disaster causing factors, disaster environment, disaster resilience and vulnerability of disaster bearing body. The disaster factors include Meiyu intensity, disaster environment including relative topographic elevation and relative standard deviation of elevation. The waterlogging water surface rate, the capacity of runoff production and the ability to resist disasters are affected by the water retaining capacity of levees, the density of drainage channels and the pumping capacity of pumping stations. The vulnerability of the disaster bearing bodies is reflected by the planning and drainage modulus index. Analytic hierarchy process (AHP) is used to determine the weight of each index. The results show that the region can only cope with Meiyu once in 3 years, and 84.37% of the area is at high risk when it encounters Meiyu once in 20 years. Raising the waterlogging water surface rate to 20 percent, and raising the pumping discharge and levee height of the pumping station to the planned level, can ensure that the area can cope with flooding with the intensity of the following plum rain once in 10 years, and in the case of a Meiyu once in 20 years, The proportion of high risk area is controlled at 10.29.
【作者單位】： 中國(guó)水利水電科學(xué)研究院流域水循環(huán)模擬與調(diào)控國(guó)家重點(diǎn)實(shí)驗(yàn)室;國(guó)家節(jié)水灌溉北京工程技術(shù)研究中心;武漢大學(xué)水資源與水電工程科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;江蘇省高郵市水務(wù)局;
【基金】：國(guó)家“十三五”重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2017YFC0403205) 中國(guó)水利水電科學(xué)研究院青年專項(xiàng)(節(jié)基本科研KY1760) 武漢大學(xué)水資源與水電工程科學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室開放基金資助項(xiàng)目(2015NSG01)
【分類號(hào)】：S422

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