Chines Journal of Vector Biology and Control ›› 2016, Vol. 27 ›› Issue (2): 99-102.DOI: 10.11853/j.issn.1003.8280.2016.02.002

• Original reports • Previous Articles     Next Articles

Relationship between mosquito density and land cover types in Guangzhou, China

YUE Yu-juan, LU Liang, LIU Qi-yong   

  1. State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
  • Received:2015-10-26 Online:2016-04-20 Published:2016-04-20
  • Supported by:

    Supported by the National Basic Research Program of China (973 Program)(No. 2012CB955504) and the National Natural Science Foundation of China (No. 81273139)

广州市蚊虫密度与土地覆盖类型关系研究

岳玉娟, 鲁亮, 刘起勇   

  1. 中国疾病预防控制中心传染病预防控制所, 传染病预防控制国家重点实验室, 感染性疾病诊治协同创新中心, 北京 102206
  • 通讯作者: 刘起勇,Email:liuqiyong@icdc.cn
  • 作者简介:岳玉娟,女,博士,助理研究员,从事气候与健康研究,Email:yueyujuan@icdc.cn
  • 基金资助:

    国家重大科学研究计划(2012CB955504);国家自然科学基金(81273139)

Abstract:

Objective To explore the relationships between mosquito density and land cover types. Methods Mosquito data in Guangzhou city were extracted from 1st-30th September 2014. Land cover types in towns of Guangzhou city were extracted based on geographical information system and remote sensing. The relationships between mosquito density and land cover types were explored based on epidemiological statistical method. The differences of mosquito density among towns were explored. Results Coverage ratios of irrigated croplands, water bodies and closed to open (>15%) grassland or woody vegetation on regularly flooded or waterlogged soil-fresh, brackish or saline water in towns with Breteau index (BI)>20, were 1.4%-35.7%, 0.1%-23.1% and 0-3.4%, respectively. These coverage ratios were higher than those in towns with BI≤5, amounting to 0-0.7%, 0-5.1% and 0, for the coverage types described previously. Compared with land cover types in adjacent towns with BI≤5, coverage ratios of irrigated croplands, water bodies and cropland/vegetation were higher and coverage ratio of rainfed croplands was even higher in towns with BI>20. Conclusion Mosquito density was closely related to irrigated croplands, water bodies and closed to open (>15%) grassland or woody vegetation on regularly flooded or waterlogged soil-Fresh, brackish or saline water.

Key words: Mosquito density, Breteau index, Land cover, Spatial relationship

摘要:

目的 探索蚊虫密度与土地覆盖类型之间的关系。方法 采用广州市2014年9月1-30日期间的蚊虫调查数据,用遥感和地理信息系统技术提取广州市街道的土地覆盖因子;采用流行病学统计分析蚊虫密度与土地覆盖类型之间的关系;比较街道蚊虫密度空间分布差异。结果 布雷图指数(BI)>20的街道水浇地、水体和被水淹没或浸湿植被的覆盖比率取值范围分别为1.4%~35.7%、0.1%~23.1%和0~3.4%,而BI≤5的街道水浇地、水体和被水淹没或浸湿植被的覆盖比率取值范围分别为0~0.7%、0~5.1%和0,总体而言,BI>20的街道水浇地、水体和被水淹没或浸湿植被的覆盖比率要高于BI≤5的街道。与邻近的BI≤5的街道比较,BI>20的街道水浇地、水体、耕地和植被的覆盖比率高,旱地的覆盖比率低。结论 蚊虫密度与水浇地、水体和被水淹没或浸湿植被密切相关。

关键词: 蚊虫密度, 布雷图指数, 土地覆盖, 空间关系

CLC Number: