Abstract：Based on the MODIS (Moderate Resolution Imaging Spectroradiometer) series images, the distribution characteristics of algal bloom in Chaohu Lake in 2016 was analyzed. The results showed that the frequency and the duration of algal blooms gradually weakened from the northwest to the southeastern. The algal blooms of western parts of lake occurred in the earliest date (5.19) and had the longest duration (131d). The algal blooms of Tangxi area of Chaohu Lake occurred more frequently. Furthermore, the correlation between the algal bloom by remote sensing with the simultaneous monitoring data (algal density, chlorophyll A, total nitrogen, and total phosphorus) were analyzed. The Q cluster analysis method was employed to separate the measured sampling points in two areas:eastern and western of Chaohu Lake. There was a strong correlation between the algal density, chlorophyll A, total nitrogen, and total phosphorus with algal bloom area in western Chaohu Lake.
Reinart A, Kutser T. Comparison of different satellite sensors in detecting cyanobacterial bloom events in the Baltic Sea[J]. Remote Sensing of Environment, 2006,102:74-85.
Xu H, Paerl H W, Qin B, et al. Determining Critical Nutrient Thresholds Needed to Control Harmful Cyanobacterial Blooms in Eutrophic Lake Taihu, China[J]. Environmental Science & Technology, 2015,49(2):1051-1059.
[28]
Yu G, Jiang Y, Song G, et al. Variation of Microcystis and microcystins coupling nitrogen and phosphorus nutrients in Lake Erhai, a drinking~water source in Southwest Plateau, China[J]. Environmental Science & Pollution Research, 2014,21(16):1-12.
