IGSNRR OpenIR
quantitativeassessmentandspatialcharacteristicsofagriculturaldroughtriskinthejinghewatershednorthwesternchina
Long Xin1; Zhen Lin1; Cheng Shengkui1; Di Suchuang2
2011
Source Publicationjournalofresourcesandecology
ISSN1674-764X
Volume002Issue:004Pages:338
Abstract泾河流域是农业旱灾的多发地区,但是对该地农业旱灾的发生规律、旱灾影响及旱灾恢复和准备措施方面开展的研究还较少。本文根据自然灾害风险评估的理论框架,建立了1km栅格精度的泾河流域农业旱灾风险空间评估模型,并对农业旱灾致灾因子危险性及农业承险体脆弱性进行评估,最后综合评估该地区农业旱灾风险。在此基础上,分析研究区农业旱灾危险性、承险体脆弱性及风险的空间特征。本研究采用Z指数方法评估泾河流域农业旱灾致灾因子的强度,选取农作物生长季缺水率、土壤有效含水量、有效灌溉面积比以及坡度等4个指标评估研究区1km空间尺度的农业旱灾脆弱性。农业旱灾风险综合评估的结果表明,泾河流域农业旱灾风险的高风险区位于该地区北部,低风险区位于该地区南部,且不同等级风险区呈现出自东向西、自南向北逐渐降低的总体趋势,但不同等级风险区呈现间隔分布的趋势。
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/76943
Collection中国科学院地理科学与资源研究所
Affiliation1.中国科学院地理科学与资源研究所
2.Beijing Hydraulic Research Institute
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Long Xin,Zhen Lin,Cheng Shengkui,et al. quantitativeassessmentandspatialcharacteristicsofagriculturaldroughtriskinthejinghewatershednorthwesternchina[J]. journalofresourcesandecology,2011,002(004):338.
APA Long Xin,Zhen Lin,Cheng Shengkui,&Di Suchuang.(2011).quantitativeassessmentandspatialcharacteristicsofagriculturaldroughtriskinthejinghewatershednorthwesternchina.journalofresourcesandecology,002(004),338.
MLA Long Xin,et al."quantitativeassessmentandspatialcharacteristicsofagriculturaldroughtriskinthejinghewatershednorthwesternchina".journalofresourcesandecology 002.004(2011):338.
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