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应用生态学报 ›› 2022, Vol. 33 ›› Issue (9): 2457-2465.doi: 10.13287/j.1001-9332.202209.036

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基于GIS的四川盆周北部山区夏玉米农业气象灾害风险评估——以旺苍县为例

刘琰琰1,2, 李佳星1, 代逸冰1, 金垚3, 张玉芳4*, 邹雨伽4   

  1. 1成都信息工程大学大气科学学院高原大气与环境四川省重点实验室, 成都 610225;
    2南方丘区节水农业研究四川省重点实验室, 成都 610062;
    3德阳市气象局, 四川德阳 618000;
    4四川省农业气象中心, 成都 610072
  • 收稿日期:2021-10-27 接受日期:2022-07-27 出版日期:2022-09-15 发布日期:2023-03-15
  • 通讯作者: * E-mail: 45963549@qq.com
  • 作者简介:刘琰琰, 女, 1982年生, 博士, 副教授。主要从事气候变化影响评估及农业防灾减灾研究。E-mail: liuyy@cuit.edu.cn
  • 基金资助:
    四川省科技厅应用基础研究项目(2020YJ0359)和成都信息工程大学教学工程项目(BKJX2020051)资助。

GIS-based risk assessment of agrometeorological disasters of summer maize in northern mountainous area of Sichuan Basin: A case study of Wangcang County, Sichuan Province, China

LIU Yan-yan1,2, LI Jia-xing1, DAI Yi-bing1, JIN Yao3, ZHANG Yu-fang4*, ZOU Yu-jia4   

  1. 1Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China;
    2Sichuan Key Laboratory of Water-Saving Agriculture Research in Southern Hilly Areas, Chengdu 610062, China;
    3Deyang Meteorological Bureau, Deyang 618000, Sichuan, China;
    4Sichuan Provincial Agricultural Meteorological Centre, Chengdu 610072, China
  • Received:2021-10-27 Accepted:2022-07-27 Online:2022-09-15 Published:2023-03-15

摘要: 气象灾害是制约我国农业发展的主要因素之一,明确夏玉米农业气象灾害风险对于防灾减灾具有重要意义。本研究基于自然灾害风险理论,以四川盆地北部山区的典型区域(旺苍县)1981—2018年气象数据和玉米产量数据为基础,确定影响夏玉米生产的主要致灾因子,并结合孕灾环境敏感性及承灾体脆弱性构建夏玉米综合农业气象灾害风险评估模型,对四川盆地北部山区夏玉米生产过程中的农业气象灾害风险进行评估。结果表明: 研究期间,成熟期高温、花期暴雨、成熟期暴雨、灌浆期连阴雨和孕穗期干旱是影响研究区夏玉米生长发育的主要农业气象灾害。旺苍县夏玉米农业气象灾害综合风险分布大致呈西南-东北走向,高风险和较高风险区分布区域约占旺苍县总面积的二分之一;灾害风险高值区主要位于研究区西南部,基本与致灾因子危险性高值区一致;灾害风险低值区多集中在西部边缘,此区域亦为成熟期高温、成熟期暴雨、花期暴雨气象灾害的低风险区。

关键词: 玉米, 致灾因子, 农业气象灾害, 风险评估

Abstract: Meteorological disaster is one of the main factors restricting agriculture development in China. It is important to clarify the risk of summer maize agrometeorological disaster for disaster prevention and mitigation. Based on the natural disaster risk theory, we collected meteorological data and maize yield data from 1981 to 2018 in a typical area in the northern mountainous area of Sichuan Basin (Wangcang County). The main disaster-causing factors affecting summer maize production were determined. A comprehensive agro-meteorological disaster risk assessment model for summer maize was constructed in combination with the sensitivity of pregnant environment and vulnerability of disaster bearing to evaluate the agrometeorological disasters risk of summer maize production in the northern mountainous area of Sichuan Basin. The results showed that during the study period, high temperature in mature period, rainstorm in flowering period, rainstorm in mature period, continuous rain in filling period and drought in booting stage were the main agrometeorological disasters affecting the growth and development of summer maize. The agrometeorological disaster risk of maize generally distributed in a southwest-northeast pattern, with the distribution areas of high-risk and higher-risk areas accounting for half of the total area of Wangcang County. The high-risk areas were mainly located in the southwest of the county, which was basically consistent with the high-value areas of hazard-pregnant environment sensitivity. The low-risk areas were mostly concentrated in the western part of county territory, which were also low-risk areas of high temperature in mature period, rainstorm in mature period, and rainstorm in flowering period disasters.

Key words: maize, disaster-inducing factor, agrometeorological disaster, risk assessment