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In the Arctic, the air temperature has increased more than twice the global average during the last few decades and may increase by 2-8°C before 2100. Wildfire frequency and expanse in the Arctic have increased in recent years. It can markedly disturb tundra ecosystems in different ways, including above-and belowground plant biomass destruction and alter soil properties through changes in the availability of soil phosphorus (P), nitrogen (N), and carbon (C). At high latitudes, the frequency and extension of tundra fires are related to climatic conditions, and the increased occurrence of fire events that have been linked to changes toward drier and warmer summers. Approximately half of the global soil C is deposited in the Arctic. Thus, climate change and increased fires in these regio...
release time: 2022 - 12 - 28
Views:0
In the Arctic, the air temperature has increased more than twice the global average during the last few decades and may increase by 2-8°C before 2100. Wildfire frequency and expanse in the Arctic have increased in recent years. It can markedly disturb tundra ecosystems in different ways, including above-and belowground plant biomass destruction and alter soil properties through changes in the availability of soil phosphorus (P), nitrogen (N), and carbon (C). At high latitudes, the frequency and extension of tundra fires are related to climatic conditions, and the increased occurrence of f...
release time: 2022 - 12 - 28
Views:0
Microplastics (particles3. A considerable part of manufactured plastics is heavier than water when they enter water environment, and they can enter sediments system. Some studies have showed that the presence of microfibers in sediment could change the composition of marine sediment microbial communities and significantly affect the nitrogen cycling, and affect the biogeochemical process of marine sediment in the coastal zone. Under the background of global climate warming, the material exchange of the lake ecosystem at the sediment-water-atmosphere interface is more frequent. Furthermore, fre...
release time: 2022 - 11 - 24
Views:1
Based on the World Meteorological Organization (WMO) data, the global average mole fraction of atmospheric CO2 was 405.5 ± 0.1 parts per million (ppm) as of 2018, which was 146% of the pre-industrial (before 1750) level (WMO, 2018). To mitigate climate change, China is striving to reduce its carbon dioxide (CO2) emissions before 2030 and has derived a series of national environmental policies to advocate green development. However, the implications of these measures on the mole fraction of the regional atmospheric CO2 remain ambiguous and whether carbon emission has been alleviated or eve...
release time: 2022 - 08 - 12
Views:3
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