Arid
民勤荒漠绿洲干旱影响因子及驱动机制研究
其他题名Driving Factors and Mechanism of Drought in Minqin Desert Oasis
石媛媛; 纪永福; 张恒嘉; 王雅云
来源期刊水生态学杂志
ISSN1674-3075
出版年2021
卷号42期号:4页码:18-25
中文摘要探究荒漠绿洲系统中气象、水文、农业、社会经济及综合干旱形成的原因,可为干旱环境与水循环研究以及生态系统的恢复与建设提供理论依据。基于主成分分析法,选取21个指标,对甘肃民勤荒漠绿洲的干旱驱动机制进行多层面和多角度解析。结果表明,研究期内蒸发量和平均温度是引起气象干旱的主要因素,累计方差贡献率为86.853%;水文干旱受制于民调水量和出库水量,累计方差贡献率为92.190%;农业干旱主要是由耕地面积与有效灌溉面积增大所致,累计方差贡献率为86.179%;工业用水与万元工业增加值用水量成为社会经济干旱的驱动要素,累计方差贡献率为87.582%。综合干旱层面提取4个主成分,其累计方差贡献率为98.255%,准确反映干旱环境的形成原因,年蒸发量、平均湿度、地表供水量、地下水开采量、地下水位、出库水量、民调水量、上游来水量、水利财政支出等因素是民勤荒漠绿洲干旱的主要驱动力来源,其对干旱的影响程度排序为:地下水开采量>出库水量>地表供水量>民调水量>年蒸发量>平均湿度>上游来水量>地下水位>水利财政支出。
英文摘要A comprehensive exploration of factors(meteorological, hydrological, agricultural, social and economic)that lead to drought in a desert oasis system can lay the foundation for study of arid environments and the water cycle.In this investigation, the Minqin desert oasis in Gansu Province was selected as a case study and the driving factors and mechanism producing drought in a desert oasis was explored, aiming to provide a theoretical basis for restoring desert oasis ecosystems.Using principal component analysis, 21 indicators of meteorology, hydrology, agriculture and the social economy were selected to study the mechanism producing draughts in the Minqin desert oasis from multiple aspects.Evaporation and temperature were the primary factors driving meteorological drought in the oasis during the study period, contributing a cumulative variance of 86.853%.Hydrological drought was attributed primarily to public water transfer volume and reservoir discharge volume, contributing a cumulative variance of 92.190%.Agriculture drought was mainly due to the increase in arable land and irrigation area, contributing a cumulative variance of 86.179%.Industrial water consumption and the 10 000-yuan added value of industrial water consumption have become the primary drivers of socio-economic drought, contributing a cumulative variance of 87.582%.The cumulative variance contributed by the four principal components extracted from the comprehensive drought level analysis was 98.255%, accurately reflecting the reasons an arid environment formed.The degree of impact among the nine primary drought factors were ranked as follows: groundwater extraction volume>reservoir water supply>surface water supply>public transfer water volume>annual evaporation>average humidity>upstream water supplementation>groundwater level>water conservancy financial expenditure.This comprehensive analysis indicates that numerous factors affect draught intensity and reflect the complexity of draught cycles in desert oasis ecosystems.
中文关键词荒漠绿洲 ; 干旱因子 ; 驱动机制 ; 主成分
英文关键词desert oasis drought driving factors draught mechanism principal component
类型Article
语种中文
收录类别CSCD
WOS类目Environmental Sciences & Ecology
CSCD记录号CSCD:7047549
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/377903
作者单位石媛媛, 甘肃农业大学水利水电工程学院, 兰州, 甘肃 730070, 中国.; 张恒嘉, 甘肃农业大学水利水电工程学院, 兰州, 甘肃 730070, 中国.; 王雅云, 甘肃农业大学水利水电工程学院, 兰州, 甘肃 730070, 中国.; 纪永福, 甘肃省治沙研究所, 兰州, 甘肃 730070, 中国.
推荐引用方式
GB/T 7714
石媛媛,纪永福,张恒嘉,等. 民勤荒漠绿洲干旱影响因子及驱动机制研究[J],2021,42(4):18-25.
APA 石媛媛,纪永福,张恒嘉,&王雅云.(2021).民勤荒漠绿洲干旱影响因子及驱动机制研究.水生态学杂志,42(4),18-25.
MLA 石媛媛,et al."民勤荒漠绿洲干旱影响因子及驱动机制研究".水生态学杂志 42.4(2021):18-25.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[石媛媛]的文章
[纪永福]的文章
[张恒嘉]的文章
百度学术
百度学术中相似的文章
[石媛媛]的文章
[纪永福]的文章
[张恒嘉]的文章
必应学术
必应学术中相似的文章
[石媛媛]的文章
[纪永福]的文章
[张恒嘉]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。