Discussing the improvement of data quality in benthic macroinvertebrate multi-habitat sampling:a perspective on habitat type proportion
Currently,in China,when using multi-habitat sampling methods for quantitative sampling of benthic macroinvertebrates,there is currently no explicit requirement for consistency between the proportion of each habitat type within the quantitative samples and their actual proportion in the sampled river reach(hereinafter referred to as the"double ratio").During the actual collection of quantitative samples,the sampling personnel tend to have a relatively random approach to the sampling of different habitat types within the river reach,resulting in general inconsistencies and significant errors in the double ratio.Given the distinct distribution patterns of benthic species and their numbers across different habitat types,such errors can affect the representativeness of the quantitative samples,as well as the reliability and accuracy of the data if left uncorrected.The impact of the double ratio error can be corrected by incorporating the proportion of habitat types obtained from on-site assessments into the calculation process.Simulation validation and comparative results demonstrate that the quality of the data is significantly improved after the proportion correction.
benthic macroinvertebratemultiple-habitat sampling methodhabitat type proportionimprovement
万方数据
维普
