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基于突變檢驗(yàn)的黃河上游生態(tài)水文變異分析

發(fā)布時(shí)間:2018-04-26 15:22

  本文選題:水文變異 + 水文生態(tài)指標(biāo)。 參考:《中國(guó)農(nóng)村水利水電》2016年10期


【摘要】:黃河上游梯級(jí)水庫(kù)在發(fā)揮防洪減災(zāi)、發(fā)電、灌溉等作用的同時(shí),使黃河上游河段生態(tài)水文特征發(fā)生了較大變化,給黃河生態(tài)環(huán)境健康帶來(lái)了一定的負(fù)面影響。以黃河上游代表站點(diǎn)蘭州站為例,使用TFPW-MK突變檢驗(yàn)法和秩和檢驗(yàn)法分析其水文序列的變異點(diǎn)位置,采用水文指標(biāo)改變法(IHA)分析變異前后水文生態(tài)指標(biāo)的變異范圍。結(jié)果表明:蘭州站水文序列在1985年發(fā)生了變異,且水文變異程度較高,各項(xiàng)生態(tài)指標(biāo)不同程度發(fā)生了改變,造成了水文生態(tài)條件的惡化。其主要原因是人類(lèi)活動(dòng)的影響。
[Abstract]:The cascade reservoirs in the upper reaches of the Yellow River exert the functions of flood control and disaster reduction, electricity generation, irrigation and so on, at the same time, the ecological and hydrological characteristics of the upper reaches of the Yellow River have changed greatly, which has brought some negative effects to the ecological environment health of the Yellow River. Taking Lanzhou Station, a representative station in the upper reaches of the Yellow River, as an example, TFPW-MK mutation test and rank sum test were used to analyze the location of variation points of hydrological sequence, and hydrological index change method was used to analyze the variation range of hydroecological indexes before and after variation. The results show that the hydrological sequence of Lanzhou station changed in 1985, and the degree of hydrological variation was high, and the ecological indexes changed in different degrees, which resulted in the deterioration of hydrological and ecological conditions. The main reason is the influence of human activities.
【作者單位】: 長(zhǎng)安大學(xué)環(huán)境科學(xué)與工程學(xué)院;長(zhǎng)安大學(xué)旱區(qū)地下水文與生態(tài)效應(yīng)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家杰出青年科學(xué)基金(41302253) 青海省應(yīng)用基礎(chǔ)研究計(jì)劃(2014-ZJ-706) 中國(guó)地質(zhì)調(diào)查局項(xiàng)目(12120113009000)
【分類(lèi)號(hào)】:P333

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相關(guān)期刊論文 前1條

1 陳廣才;謝平;;基于啟發(fā)式分割算法的水文變異分析研究[J];中山大學(xué)學(xué)報(bào)(自然科學(xué)版);2008年05期



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