DYNAMIC OBSERVATIONS ON SNAIL SITUATION AND WILD FAECES POLLUTION IN MARSHLANDS IN PILOT AREAS OF HUBEI PROVINCE
- VernacularTitle:湖北省平垸行洪移民建镇地区螺情和洲滩野粪污染动态观察
- Author:
Zhengming SU
;
Fenghua WEI
;
Hui HE
;
Hongping FAN
;
Zuwu TU
;
Xingjian XU
- Publication Type:Journal Article
- Keywords:
Leveling embankment for flood running;
People resettlement from outside embankment to town;
Schistosomiasis;
Snail;
Wild faeces
- From:
Chinese Journal of Schistosomiasis Control
1989;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the dynamic changes of snail situation and wild faeces pollution in marshlands in the pilot areas after leveling embankment for flood running and moving people from outside embankment to town for providing the scientific basis of schistosomiasis control in the same type areas. Methods Shishou City,Jiangxia District,Tuanfeng County and Huangzhou District were selected as the pilot areas. Snails were surveyed by the systematic and environmental sampling. Wild faeces were also investigated. The data were processed by Excel. Results Snail areas in Huangzhou Yeluzhou increased by 12.71%,in the others it did not change. For the snail density,there was a decline trend in Jiangxia Sanjiaozhou from 1999 to 2001,but it increased in 2002 obviously;in Huangzhou Yeluzhou it decreased in 2000,but increased again from 2001 to 2002;in Tuanfeng Luohuozhou it was fluctuation;it did not change in Shishou Fuxingzhou. Except Shishou City,the other three sites had infected snails distribution. The densities of wild faeces in the pilot areas were 1.14～15.60/hm~2. The positive rates of wild faeces were 1.35%～37.21%. Conclusion The marshlands in pilot areas were seriously polluted by wild faeces. There seemed to be an increase trend in the snail density. Snail areas did not change significantly in the last few years. However,the high transmission areas will expand. So the snail survey and snail control should be strengthened.
