The Three Gorges Dam: Does the Flooding Time Determine the Distribution of Schistosome-Transmitting Snails in the Middle and Lower Reaches of the Yangtze River, China?
The Three Gorges Dam: Does the Flooding Time Determine the Distribution of Schistosome-Transmitting Snails in the Middle and Lower Reaches of the Yangtze River, China?
复制标题
三峡大坝：洪水时间决定了中国长江中下游血吸虫传播钉螺的分布吗？
DOI：
10.3390/ijerph15071304
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发表时间：
2018-06-21
影响因子：
--
通讯作者：
Zhou YB
中科院分区：
文献类型：
--
作者：
Yang Y;Zheng SB;Yang Y;Cheng WT;Pan X;Dai QQ;Chen Y;Zhu L;Jiang QW;Zhou YB
背景：血吸虫病是世界上最具破坏性的热带疾病之一。湖北钉螺是日本血吸虫唯一的中间宿主，其生长发育对环境因子敏感。三峡大坝极大地改变了长江水位。研究了洪水时间对湖南省钉螺发生的影响。方法：钉螺资料来源于《中华人民共和国血吸虫图集》。利用中国气象数据共享服务系统1995 ~ 2002年的气温、日照时数和相对湿度资料，分析了我国冬季气温、日照时数和相对湿度的变化规律。从湖南省防汛信息系统和湖南省水文站收集降雨量和淹没天数资料。一个广义的加性模型被用来估计这些因素的存在或不存在的蜗牛的影响。结果：有螺地区淹水天数56 ~ 212天。然而，82%没有蜗牛的地区在60天内被水淹没。无螺区一年中的最低气温为−2.88 °C至−2.10 °C，有螺区为−2.88 °C至−2.34 °C。有螺区年降雨量为989 ~ 1565 mm，无螺区年降雨量为1230 ~ 1647 mm。广义加性模型的结果表明，淹水天数、年最低气温、年降雨量、日降雨量大于0.1mm的天数和日照时数是影响湖南省钉螺发生的显著因子。结论：淹水天数可能是决定湖南省钉螺地理分布的关键因素，适宜钉螺存活的淹水天数为2 ~ 7个月。
Background: Schistosomiasis is one of the most devastating tropical diseases in the world. Oncomelania hupensis is the only intermediate host of Schistosoma japonicum, and its growth and development are sensitive to environmental factors. The Three Gorges Dam has substantially altered the water level in the Yangtze River. This study focused on the impact of the flooding time on the occurrence of Oncomelania snails in Hunan Province, China. Methods: The data regarding Oncomelania snails were collected from the Schistosomiasis Atlas of the People’s Republic of China. Air temperature, hours of daylight and relative humidity from 1995 to 2002 were collected from the China Meteorological Data Sharing Service System. The data for rainfall and days inundated with water were collected from the Hunan flood control information system and hydrological stations in Hunan Province. A generalized additive model was used to estimate the impact of these factors on the presence or absence of snails. Results: The number of days inundated with water in the areas with snails ranged from 56 to 212 days. However, 82 percent of the areas without snails were inundated with water less than 60 days. The lowest air temperature in a year in the areas without snails ranges from −2.88 °C to −2.10 °C, and the range was from −2.88 °C to −2.34 °C for areas with snails. Annual rainfall in the areas with snails ranged from 989 to 1565 mm, and the range was from 1230 mm to 1647 mm for the areas without snails. The results from the generalized additive model showed that the number of days inundated with water, lowest air temperature in a year, annual rainfall, days of daily rainfall greater than 0.1 mm, and hours of daylight were the factors that significantly affect the occurrence of snails in Hunan Province, China. Conclusions: The number of days inundated with water may be a key factor determining the geographical distribution of Oncomelania snails in Hunan Province and the favorable number of days inundated with water for the survival of snails ranges from about 2 to 7 months.
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影响因子：
2.5
作者：
Seto, Edmund Y. W.;Wu, Weiping;Davis, George M.
通讯作者：
Davis, George M.
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影响因子：
3.2
作者：
Hu Y;Zhang Z;Chen Y;Wang Z;Gao J;Tao B;Jiang Q;Jiang Q
通讯作者：
Jiang Q
影响因子：
3.9
作者：
Martin, K;Sommer, M
通讯作者：
Sommer, M
三峡大坝：水位与血吸虫钉螺密度的多项式回归模型
影响因子：
3.2
作者：
Yang Y;Gao J;Cheng W;Pan X;Yang Y;Chen Y;Dai Q;Zhu L;Zhou Y;Jiang Q
通讯作者：
Jiang Q
影响因子：
3.8
作者：
McManus DP;Gray DJ;Ross AG;Williams GM;He HB;Li YS
通讯作者：
Li YS