2010 Index of Stream Condition Scores

The ISC2010_SCORES dataset represents the 2010 Index of Stream Condition (ISC) overall score and subindex scores for each ISC river reach in the state of Victoria. This was the third ISC assessment providing a snapshot of river health for major rivers and streams in Victoria, using data collected over a six-year period from 2004 to 2010. The methods used in 2010 differed to the 1999 and 2004 assessments. Method changes were undertaken to strike a balance between incorporating new scientific advances while maintaining compariability of results with the 1999 and 2004 benchmarks. The ISC 2010 provides scores for five components of stream condition: (i) hydrology (based on change in volume and seasonality of flow from natural conditions); (ii) physical form (based on bank stability, bed erosion or aggradation, influence of artificial barriers, and abundance and origin of coarse woody debris); (iii) streamside zone (based on types of plants; spatial extent, width, and intactness of riparian vegetation; regeneration of overstorey species, and condition of wetlands and billabongs); (iv) water quality (based on an assessment of phosphorus, turbidity, electrical conductivity and pH); and (v) aquatic life (based on number of families of macroinvertebrates). The Physical Form and Riparian Vegetation components of the ISC were mapped by the Department of Environment and Primary Industries (DEPI) in 2010-12 using LIDAR and aerial photography. Other ISC metrics were derived from other sources. Further information available at: https://www.water.vic.gov.au/waterways-and-catchments/rivers-estuaries-and-waterways/monitoring

ISC2010_SCORES数据集涵盖维多利亚州各ISC河流河段的2010年河流状况指数（Index of Stream Condition，ISC）总分与分项得分。本次为第三次ISC评估，依托2004至2010年六年采集的监测数据，对维多利亚州主要河流与溪流的健康状况进行了快照式评估。2010年评估所采用的方法与1999年、2004年的评估方法存在差异。此次方法调整旨在在融入最新科学进展与维持1999年、2004年基准结果的可比性之间达成平衡。2010年ISC评估提供了河流状况的五大组成部分得分：（1）水文状况：基于径流相较于自然状态下的流量变化与季节波动；（2）物理形态：基于河岸稳定性、河床侵蚀或淤积状况、人工屏障的影响以及粗木质残体的丰度与来源；（3）滨岸带：基于植物类型、河岸植被的空间范围、宽度与完整性、上层林冠物种的更新状况以及湿地与死水潭的状态；（4）水质：基于磷、浊度、电导率与pH值的评估结果；（5）水生生物：基于大型无脊椎动物的科类数量。2010至2012年间，环境与初级产业部（Department of Environment and Primary Industries，DEPI）采用激光雷达（LIDAR）与航空摄影技术，完成了ISC评估中物理形态与河岸植被组成部分的测绘工作。其余ISC评估指标则源自其他监测数据源。更多详细信息可访问：https://www.water.vic.gov.au/waterways-and-catchments/rivers-estuaries-and-waterways/monitoring