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通过水闸式河床坝进行环境管理：控制溪流中微小按蚊滋生的一种复兴策略。

Environmental management through sluice gated bed-dam: a revived strategy for the control of Anopheles fluviatilis breeding in streams.

作者信息

Sahu S S, Gunasekaran K, Jambulingam P

机构信息

Vector Control Research Centre (ICMR), Puducherry, India.

出版信息

Indian J Med Res. 2014 Aug;140(2):296-301.

PMID:25297364
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4216505/
Abstract

BACKGROUND & OBJECTIVES: Integrated vector management (IVM) emphasizes sustainable eco-friendly methods and minimal use of chemicals. In this context, the present study highlights the environmental control of breeding of Anopheles fluviatilis, the primary malaria vector, through water management in a natural stream in Koraput district, Odisha, India.

METHODS

The District Rural Development Agency (DRDA), Koraput, constructed two bed-dams across streams, one in Barigaon and the other in Pipalapodar village. The bed-dam in the former village was fitted with two sluice gates whereas the bed dam constructed in the latter village was without the sluice gate. the sluice gates were opened once in a week on a fixed day to flush out the water from the dam. Anopheles immatures were sampled systematically in the streams using a dipper for density measurement and species composition.

RESULTS

There was a reduction of 84.9 per cent in the proportion of positive dips for anopheles larvae/pupae and a reduction of 98.4 per cent in immature density (number/dip) of An. fluviatilis in the experimental downstream compared to the control following opening of the sluice gates.

INTERPRETATION & CONCLUSIONS: Our findins showed that opening of sluice gates of the bed-dam regularly once in a week resulted in the control of vector breeding in the downstream due to the flushing effect of the water released with a high flow from the bed-dam that stagnated water in the upstream. The outcome of the study encourages upscaling this measure to other areas, wherever feasible.

摘要

背景与目的

综合病媒管理（IVM）强调采用可持续的环保方法并尽量减少化学品的使用。在此背景下，本研究着重介绍了通过对印度奥里萨邦科拉普特地区一条天然溪流进行水管理，对主要疟疾媒介河流按蚊的繁殖进行环境控制。

方法

科拉普特地区农村发展机构（DRDA）在溪流上修建了两座拦水坝，一座位于巴里冈，另一座位于皮帕拉波达尔村。前一个村庄的拦水坝安装了两个闸门，而后一个村庄修建的拦水坝没有闸门。闸门每周在固定日期打开一次，以排出坝内的水。使用长柄勺在溪流中系统采集按蚊幼虫样本，以测量密度和物种组成。

结果

与对照相比，打开闸门后，实验下游的按蚊幼虫/蛹阳性勺检比例降低了84.9%，河流按蚊幼虫密度（每勺检数量）降低了98.4%。

解读与结论

我们的研究结果表明，每周定期打开拦水坝的闸门，由于拦水坝中高流量释放的水对上游积水的冲刷作用，可控制下游的病媒繁殖。该研究结果鼓励在可行的情况下，将这一措施推广到其他地区。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/194d706b6d62/IJMR-140-296-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/3dd733db20a5/IJMR-140-296-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/354ec317121c/IJMR-140-296-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/a6b8a85841b0/IJMR-140-296-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/194d706b6d62/IJMR-140-296-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/3dd733db20a5/IJMR-140-296-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/354ec317121c/IJMR-140-296-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/a6b8a85841b0/IJMR-140-296-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/453e/4216505/194d706b6d62/IJMR-140-296-g004.jpg

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Malar J. 2013 Feb 21;12:72. doi: 10.1186/1475-2875-12-72.
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Malaria in India: the center for the study of complex malaria in India.印度疟疾：印度复杂疟疾研究中心。
Acta Trop. 2012 Mar;121(3):267-73. doi: 10.1016/j.actatropica.2011.11.008. Epub 2011 Nov 28.
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Acceptability, willing to purchase and use long lasting insecticide treated mosquito nets in Orissa State, India.
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