Comparison of ecological risk assessment of herbicide by species sensitivity distribution with effect assessment of natural periphytic diatom communities by river ecological survey
Comparison of ecological risk assessment of herbicide by species sensitivity distribution with effect assessment of natural periphytic diatom communities by river ecological survey
复制标题
物种敏感性分布对除草剂生态风险评估与河流生态调查对天然附生硅藻群落效果评估的比较
DOI：
10.11403/jset.26.15
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
横山淳史
中科院分区：
文献类型：
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作者：
永井孝志;稲生圭哉;横山淳史
利用物种敏感性分布评价了日本河流中多种除草剂的累积生态风险，并与自然周栖硅藻群落进行了比较。考虑到特定区域的环境条件参数，对9条河流的特定区域预测环境浓度进行了估算。利用NIAES-CERAP软件计算了多种除草剂的多物质潜在影响分数（msPAF），作为多种除草剂的风险指数。另一方面，在这9条河流中进行了以硅藻群落为重点的河流生态调查，并计算了物种组成的几个生物指标，如属数、Shannon多样性、DAIpo和SPRINGS除草剂，这是除草剂对硅藻群落影响的指标。DAIpo和SPRINGS除草剂（但每个属的种群数量没有进行对数转换）与msPAF显着相关，表明这些指标用于评估除草剂混合物的效果的适用性。此外，平壳藻属和菱形藻属的丰度百分比分别与msPAF呈显著的正相关和负相关。
The cumulative ecological risks from multiple herbicides in Japanese rivers were evaluated using species sensitivity distribution and were compared with natural periphytic diatom communities. Region-specific predicted environmental concentrations were estimated at 9 rivers considering the region-specific parameters of environmental conditions. Then the multi-substance potentially affected fraction (msPAF) was calculated as a risk index of multiple herbicides using the computation tool NIAES-CERAP. On the other hand, river ecological survey focusing on diatom community were conducted in these 9 rivers and several biological metrics for species composition were calculated such as genus number, Shannon’s diversity, DAIpo, and SPEAR herbicides which is an indicator of the herbicide effect on the diatom community. DAIpo and SPEAR herbicides (but the population number of each genus was not log-transformed) significantly correlated with msPAF, indicating the applicability of these metrics for assessing the effect of herbicide mixture. Moreover, the percentage of abundance for genus Planothidium and Nitzschia were significantly correlated with msPAF negatively and positively, respectively.