Spatio-temporal distribution of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal
10.16250/j.32.1374.2019307
- VernacularTitle:京杭大运河丹阳段及丹金溧漕河沿线钉螺时空分布特征研究
- Author:
Tian-Tian JIANG
1
;
Liang SHI
1
,
2
,
3
;
Wei LI
1
,
2
;
Jian-Feng ZHANG
1
,
2
;
Jian HE
1
,
2
;
Xin-Yao WANG
1
,
2
;
Lu LIU
1
,
2
;
Yun FENG
1
,
2
;
Lin WANG
4
;
Yi-Qing XIE
5
;
Zhi-Jian WANG
6
;
Tao ZHU
6
;
Tao JIANG
6
;
Jian-Ping SUN
7
;
Wei DAI
7
;
Da-Cheng XU
7
;
Kun YANG
1
,
2
Author Information
1. Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
2. Public Health Research Center, Jiangnan University, China
3. Co-first author
4. Zhenjiang Center for Disease Control and Prevention, Jiangsu Province, China
5. Chang-zhou Center for Disease Control and Prevention, Jiangsu Province, China
6. Danyang Center for Disease Control and Prevention, Jiangsu Province, China
7. Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
- Publication Type:Journal Article
- Keywords:
Oncomelania snail;
Spatio-temporal distribution;
Beijing-Hangzhou Grand Canal;
Danyang-Jintan-Liyang Canal;
Jiangsu Province
- From:
Chinese Journal of Schistosomiasis Control
2020;32(1):10-14
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the spatio-temporal characteristics of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, so as to provide scientific evidence for the dynamic assessment of the risk of snail spread in this region. Methods O. hupensis snail status was collected in the plain regions with waterway networks in the study area from 2012 to 2017. The spatio-temporal variations of snail distribution were investigated along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal using buffer zone analysis, spatial autocorrelation, hotspot analysis and standard deviational ellipse with the geographical information system (GIS) tools. Results The number of snail habitats showed a tendency towards a rise in the study area from 2012 to 2017, and snail habitats were predominantly distributed in the 1 000 m long buffer zone of the Danyang-Jintan-Liyang Canal, notably along the Jiuqu River at the junction between the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal. The distribution of snail habitats appeared spatial autocorrelations in 2014, 2016 and 2017, and the hotspot areas were mainly identified at the junction between the Danyang-Jintan-Liyang Canal and the Beijing-Hangzhou Grand Canal. In addition, the overall distribution of snail habitats was located in the northeastern-southwestern part of the study aera, and gradually shifted to the southern and northern parts with the time. Conclusions The spatial distribution of O. hupensis snails is complex along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, and there is a risk of snail spread from the upper reaches to the lower reaches, where snail control needs to be intensified.
