Results indicated that the contribution of brute manure, domestic pollution source, runoff and food-supplied fishpond to water pollution load was 43.81%, 29. 91%, 22. 43%and 3. 85%, respectively.

研究结果表明，当前各类农业非点源污染对水体的污染负荷贡献率为：畜禽粪尿43.81%，生活污染29.91%，农田径流和渗漏22.43%精养鱼塘3.85%。

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But the combination of a rising pollution load and falling water levels makes that process much harder.

但是不断增长的污染量和下降的水位组合是那些步骤变得更难了。

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While a wetland with little research or understanding of the pollution will help to reduce the pollutant load, treatment wetlands are much more effective with a proper understanding of the water.

湿地或多或少能减少污染负荷，处理湿地要求对水的了解更深、处理污染的效率更高。

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