نتایج جستجو برای: lake chaohu
تعداد نتایج: 42315 فیلتر نتایج به سال:
In the context of rapid urbanization, building an ecological security pattern that takes into account both protection and economic growth is great significance for guiding high-quality regional development. Taking Hefei metropolitan area as example, we identified source from three aspects—the importance ecosystem services, sensitivity, landscape connectivity—by using NPP-VIIRS night light data,...
Xue-Jiao Ma, M.D.*, Hai-Fei Yang, M.D.*, Yan-Yan Liu, M.D., Qing Mei, M.D., Ying Ye, M.D., Hong-Ru Li, M.D., Jun Cheng, M.D., and Jia-Bin Li, M.D. Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei; Institute of Bacterium Resistance, Anhui Medical University, Hefei; Anhui Center for Surveillance of Bacterial Resistance, Hefei; Department of Clini...
This issue of Palaeogeography Palaeoclimatology Palaeoecology is devoted to papers on the Permian– Triassic boundary crisis and Early Triassic biotic recovery. It is an outgrowth of the Symposium on Early Triassic Chronostratigraphy and Biotic Recovery that was held in Chaohu, China, on May 21st–23rd, 2005 under the auspices of IGCP Project 467 and attended by about 200 Earth scientists with a ...
湖泊富营养化导致的水华问题严重影响了淡水资源的利用和保护，快速、全面、准确的监测水华信息对于湖泊水环境的治理具有十分重要的意义.本文以巢湖为研究区域，利用多源光学遥感影像和时空融合技术，采用波段融合的方式将NDVI指数波段加入到遥感影像当中，并通过监督分类解译水华信息，以此揭示2009-2018年10年间巢湖水华的时空变化规律.结果表明：巢湖发生的水华以零星和局部水华为主，2012年巢湖水体首次出现区域蓝藻水华；巢湖水华的季节变化性强，夏、冬半年水华变化差异大，其中2018年季节间的差异最为显著；巢湖水华后五年发生频率明显高于前五年，西半湖水华较东半湖严重，且巢湖西北部是水华的高发区域，2011年水华开始向沿岸蔓延，2014年水华首次出现在西南湖区，2016年巢湖水华高发区域新增巢湖东部和中部地区.另外，本文根据巢湖的相关气象数据，构建了Logistic水华气象风险概率预测模型，模型...
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