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首页> 外文期刊>African Journal of Aquatic Science >Environmental impact of seasonal integrated aquaculture ponds ('fingerponds') in the wetlands of Lake Victoria, Kenya: an assessment, with the aid of Bayesian Networks.
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Environmental impact of seasonal integrated aquaculture ponds ('fingerponds') in the wetlands of Lake Victoria, Kenya: an assessment, with the aid of Bayesian Networks.

机译:肯尼亚维多利亚湖湿地的季节性综合水产养殖池塘(“池塘”)对环境的影响:借助贝叶斯网络进行的评估。

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摘要

The potential effect on ecosystem integrity of the use of natural wetlands for seasonal wetland fishponds ('fingerponds'), integrated with vegetable production for livelihood demands, was evaluated using experimental sites at Lake Victoria, Kenya. Soluble reactive phosphorous and total phosphorus, ammonium, nitrate and total nitrogen data showed no evidence of nutrients leaching from the ponds into the immediate wetland groundwater. Nutrient concentrations in pond water were significantly higher than those in the groundwater in the immediate wetland environment. Bayesian Networks were used to evaluate the main environmental concerns. The environmental impact of fingerponds, particularly on hydrology and biodiversity, was low, although land-use changes at the immediate site where the ponds were dug had direct impacts. Whereas this study was based on short-term monitoring of experimental fingerponds, scaling up of these systems may increase their impact. Continued monitoring is needed during the scaling-up phase.
机译:使用肯尼亚维多利亚湖的实验点,评估了将天然湿地用于季节性湿地鱼塘(“指池”)并结合蔬菜生产以满足生计需求对生态系统完整性的潜在影响。可溶性反应性磷和总磷,铵,硝酸盐和总氮的数据表明,没有证据表明养分从池塘浸出到直接的湿地地下水中。在紧邻的湿地环境中,池塘水中的营养物浓度明显高于地下水中的营养物浓度。贝叶斯网络用于评估主要的环境问题。尽管池塘开挖的直接用地的土地利用变化具有直接影响,但对池塘的环境影响尤其是对水文和生物多样性的环境影响很小。尽管此研究基于对实验指池的短期监控,但按比例放大这些系统可能会增加其影响。在放大阶段需要持续监控。

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