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首页> 外文期刊>Polish journal of ecology >Application of adapted Benthic Index of Biotic Integrity (B-IBI) for river ecosystem health assessment in Zhanghe River Watershed, China
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Application of adapted Benthic Index of Biotic Integrity (B-IBI) for river ecosystem health assessment in Zhanghe River Watershed, China

机译：适用于中国漳河流域河流生态系统健康评估的生物完整性（B-IBI）的适应性

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摘要

In order to evaluate the ecological health condition of Zhanghe River Watershed, an adapted Benthic Index of Biotic Integrity (B-IBI) was developed. Macro-invertebrates were sampled at 12 monitoring stations which were grouped into two condition categories (reference and impaired stations) according to the level of degradation. A total of 47 benthic macroinvertebrates taxa were identified, in which aquatic insects 33 taxa, Mollusca 8, Annalida 3 and Crustacea 3 taxa. Based on macro-invertebrate assemblages characters of this area, 18 candidate biological metrics in four categories, including taxonomic richness, community composition, pollution tolerance, trophic guild, and value distribution, were chosen. In which, four metrics were excluded because of low values or narrow distribution range. Discriminatory power between reference and impaired stations was analysed using box-plots, and six metrics were excluded because the medians of the box-plot inside the inter quartile range. Of all the rest eight metrics, four were not suitable for B-IBI index system because of their high Pearson correlation (vertical bar r vertical bar 0.75). Finally, total taxa, percentage of Crustacea and Mollusca, percentage of tolerant taxa and percentage of predators were screened out to form a B-IBI index system. Ratio scoring method for B-IBI index was used to get a uniform score. Evaluation criterion was established based on the 25 percentiles value of reference stations. Assessment results using B-IBI showed 5 of sampling stations were in 'healthy' and 'sub-healthy' state, 3 were in 'fair' state, and 4 were in 'poor' or 'very poor' state of the whole watershed.
机译：为了评估张河流域的生态健康状况，开发了一种适应的生物完整性（B-IBI）的底栖指标。根据降解水平，在12个监测站下对宏观无脊椎动物进行取样，该站被分组为两种情况（参考和受损站）。鉴定了共有47个底栖大型椎植物分类群，其中水生昆虫33个分类群，软体动物8，Annalida 3和Crustacea 3个分类群。基于该地区的宏观无脊椎动物组合特征，选择了18个候选生物指标，包括分类，包括分类，社区成分，污染耐受，营养公会和价值分布。其中，由于低值或窄分配范围，排除了四个度量。使用盒子图分析了参考和受损站之间的歧视力，并且排除了六个度量，因为间距间距内部的箱子的中位数。在所有剩余的八个指标中，由于它们的高Pearson相关性（垂直条R垂直条＆ 0.75），四个不适合B-IBI指数系统。最后，筛选出甲壳树和软体动物的总征壳，甲壳素百分比，耐受性的百分比和捕食者的百分比，以形成B-IBI指标体系。 B-IBI索引的比率评分方法用于获得均匀分数。基于参考站的25百分位值建立评估标准。使用B-IBI的评估结果显示了5个采样站，并“健康”，“亚健康”状态，3个处于“公平”状态，4个在“贫困”或“非常贫穷”的整个流域状态。

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