Study on relationship between vegetation and spatial distribution of Oncomlania snails in Poyang Lake region
- VernacularTitle:鄱阳湖区洲滩植被与钉螺空间分布关系的研究
- Author:
Zhaojun LI
;
Honggen CHEN
;
Peng GONG
;
Xiaojun ZENG
;
Yuemin LIU
;
Shuying XIE
- Publication Type:Journal Article
- Keywords:
Oncomelania snail;
Vegetation;
Spatial distribution;
Remote sensing techniques;
Poyang Lake
- From:
Chinese Journal of Schistosomiasis Control
2010;22(2):132-135,封3
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the relationship between the vegetation and space distribution of Oncomelania snails in Poyang Lake region,so as to get better understanding of the habitats of Oncomelania snails by using remote sensing technology.Methods The marshlands close to schistosomiasis endemic villages in Poyang Lake region were selected,and the traditional methods were used to investigate the situation of vegetation and Oncomelania snails.The longitude and latitude of investigation spots were recorded by GPS,and the field survey data were vectored by using ArcGIS software.The geometric calibration and unsupervised classification were made on TM satellite images of low-flow period of spring by using PCI 9.0.And then,the relationship between space distribution of snail habitats and vegetation was analyzed through superposing the filed data and satellite images.Results The vegetation in marshlands of Poyang Lake region can be differentiated as three types,in which the single dominant vegetation area was mainly breeding place of Oncomelania snails,and wet vegetation type and hybrid weed type were snail seldom breeding areas.Conclusions The distribution roles of vegetation in marshland are closely related to the habitats of snails,presenting a flaky and bandy distribution.The habitats of Oncomelania snails can be quickly understood by remote sensing technology.
