中文摘要：

把数据(2008-2011 ) 基于 macrofauna 在里面 Xiaoqing 河河口和它的邻近的海， Bohai 的 Laizhou 海湾海，中国， AZTI 海洋的关於生命的索引(AMBI ) 和 Multivariate AMBI (M-AMBI ) 被用于 benthic 产地质量(BHQ ) 评价。结果显示出介绍的那 BHQ 沿着溪流隧道和河的方向的改进的一个明显的趋势嘴，并且在里面沿海的区域。AMBI 和 M-AMBI 是显著地与环境压力坡度数据有关。因此，二个索引能很好在学习区域显示 BHQ。然而，二个索引的结果之间有重要差别。在里面低 taxa 数字和高许多单身者种类的情况， AMBI 可能过高估计 BHQ。我们因此调整了它的阀值解决这个问题。并且当 benthic 集合被机会主义的种类统治时， M-AMBI 可能过高估计 BHQ。然后，我们能在 M-AMBI 的计算提起 AMBI 的重量处理这个问题。

英文摘要：

Based on the macrofauna data（2008-2011） in Xiaoqing River estuary and its adjacent sea, Laizhou Bay of Bohai Sea, China, the AZTI Marine Biotic Index（AMBI） and Multivariate AMBI（M-AMBI） were used for benthic habitat quality（BHQ） assessment. Results showed that BHQ presented an obvious trend of improvement along the direction of stream channel and river mouth, and in the coastal areas. AMBI and M-AMBI were significantly related to environmental pressure gradient data. Therefore, the two indices can well indicate BHQ in the studied area. However, there were significant differences between results of the two indices. In the cases of low taxa number and high abundance of single species, AMBI might overestimate BHQ. We thus adjusted its thresholds to solve this problem. And M-AMBI might overestimate BHQ when benthic assemblage was dominated by the opportunistic species. Then we could raise the weight of AMBI in the calculation of M-AMBI to handle the problem.