Global divergent trends of algal blooms detected by satellite during 1982–2018
Global divergent trends of algal blooms detected by satellite during 1982–2018
复制标题
1982年至2018年卫星监测到的全球藻华趋势差异
DOI：
10.1111/gcb.16077
复制
发表时间：
2022-01
影响因子：
11.6
通讯作者：
Yunfeng Lyu
中科院分区：
文献类型：
--
作者：
Chong Fang;Kaishan Song;Hans W Paerl;Pierre-Andre Jacinthe;Zhidan Wen;Ge Liu;Hui Tao;Xiaofeng Xu;Tiit Kutser;Zongming Wang;Hongtao Duan;Kun Shi;Yingxin Shang;Lili Lyu;Sijia Li;Qian Yang;Dongmei Lyu;Dehua Mao;Baohua Zhang;Shuai Cheng;Yunfeng Lyu
内陆湖泊水华已对生态环境造成严重影响，并对动物和人类健康造成危害。我们使用存档的Landsat图像来检查地球仪周围湖泊（>1平方公里）中的AB，时间跨度为37年（1982-2018）。在全球范围内检测到的176032个面积>1 km 2的湖泊中，863个受到AB的影响，708个有足够长的记录来定义趋势，66%的频率比呈现出增加的趋势（FRQR，某一湖泊一年中观测到的ABs事件数量与该湖泊可用陆地卫星图像数量的比率）或面积比率（AR，湖泊中观测到的ABs年最大覆盖面积与该湖泊表面积的比值），而34%呈下降趋势。在整个北美，1999年之前，观察到ABs严重程度的FRQR（p <0.01）和AR（p <0.01）加剧，21世纪后ABs FRQR（p <0.01）和AR（p <0.05）下降。在亚洲观察到最强烈的AB强化，其次是南美洲，非洲和欧洲。大洋洲没有发现明显的趋势。在各气候带中，人为因素对ABs加剧的贡献（肥料16.5%，国内生产总值19.4%，人口18.7%）略强于气候驱动因素（温度10.1%，风速11.7%，压力16.8%，降雨11.6%）。总的来说，这些不同的趋势表明，考虑人为因素以及气候变化应在管理政策的最前沿，旨在减少内陆沃茨的AB的严重性和频率。
Algal blooms (ABs) in inland lakes have caused adverse ecological effects, and health impairment of animals and humans. We used archived Landsat images to examine ABs in lakes (>1 km2) around the globe over a 37‐year time span (1982–2018). Out of the 176032 lakes with area >1 km2 detected globally, 863 were impacted by ABs, 708 had sufficiently long records to define a trend, and 66% exhibited increasing trends in frequency ratio (FRQR, ratio of the number of ABs events observed in a year in a given lake to the number of available Landsat images for that lake) or area ratio (AR, ratio of annual maximum area covered by ABs observed in a lake to the surface area of that lake), while 34% showed a decreasing trend. Across North America, an intensification of ABs severity was observed for FRQR (p < .01) and AR (p < .01) before 1999, followed by a decrease in ABs FRQR (p < .01) and AR (p < .05) after the 2000s. The strongest intensification of ABs was observed in Asia, followed by South America, Africa, and Europe. No clear trend was detected for the Oceania. Across climatic zones, the contributions of anthropogenic factors to ABs intensification (16.5% for fertilizer, 19.4% for gross domestic product, and 18.7% for population) were slightly stronger than climatic drivers (10.1% for temperature, 11.7% for wind speed, 16.8% for pressure, and for 11.6% for rainfall). Collectively, these divergent trends indicate that consideration of anthropogenic factors as well as climate change should be at the forefront of management policies aimed at reducing the severity and frequency of ABs in inland waters.
登录
查看更多内容
影响因子：
11.6
作者：
Frenken, Thijs;Velthuis, Mandy;Van de Waal, Dedmer B.
通讯作者：
Van de Waal, Dedmer B.
影响因子：
13.5
作者：
Ho, Jeff C.;Stumpf, Richard P.;Michalak, Anna M.
通讯作者：
Michalak, Anna M.
DOI：
10.1016/j.xinn.2021.100092
发表时间：
2021-05-28
期刊：
Innovation (Cambridge (Mass.))
影响因子：
--
作者：
Wang H;Xu C;Liu Y;Jeppesen E;Svenning JC;Wu J;Zhang W;Zhou T;Wang P;Nangombe S;Ma J;Duan H;Fang J;Xie P
通讯作者：
Xie P
影响因子：
64.8
作者：
Lian Feng;Yanhui Dai;Xuejiao Hou;Yang Xu;Junguo Liu;C. Zheng
通讯作者：
Lian Feng;Yanhui Dai;Xuejiao Hou;Yang Xu;Junguo Liu;C. Zheng
影响因子：
13.5
作者：
S. Simis;A. Ruiz-Verdú;J. Domínguez-Gómez;Ramón Peña-Martínez;S. Peters;H. Gons
通讯作者：
S. Simis;A. Ruiz-Verdú;J. Domínguez-Gómez;Ramón Peña-Martínez;S. Peters;H. Gons