NASA研究發(fā)現(xiàn)全球干旱恢復期變長
發(fā)布時間：2018-10-13 07:58
【摘要】：正NASA網(wǎng)站2017年8月15日報道,20世紀以來,陸地生態(tài)系統(tǒng)從干旱中恢復過來的時間越來越長,部分地區(qū)的生態(tài)系統(tǒng)尚未從一次干旱中恢復便又遭遇干旱。這或將成為一種新常態(tài),可能導致樹木死亡以及溫室氣體排放加劇。相關論文發(fā)表在Nature上。研究人員利用泰拉衛(wèi)星(Terra)搭載的中分辨率成像光譜儀(MODIS)和地面測量儀測算了不同地區(qū)的干旱恢復期,發(fā)現(xiàn)全球所有陸地地區(qū)的干旱恢復期都變得更長,尤其是在熱帶和北半球高緯度地
[Abstract]:NASA reported on Aug. 15, 2017 that since the 20th century, terrestrial ecosystems have been recovering from drought more and more, and ecosystems in parts of the region are suffering from drought before recovering from a single drought. This could become a new normal that could lead to tree death and increased greenhouse gas emissions. Related papers were published on Nature. The researchers used the mid-resolution imaging spectrometer (MODIS) and ground gauges from the Terra (Terra) to estimate the drought recovery periods in different regions, and found that drought recovery periods in all land areas of the world became longer. Especially in the tropics and high latitudes of the Northern Hemisphere
【作者單位】： 中國科學院科技戰(zhàn)略咨詢研究院;
【分類號】：P426.616;X171.1
，
本文編號：2267860
[Abstract]:NASA reported on Aug. 15, 2017 that since the 20th century, terrestrial ecosystems have been recovering from drought more and more, and ecosystems in parts of the region are suffering from drought before recovering from a single drought. This could become a new normal that could lead to tree death and increased greenhouse gas emissions. Related papers were published on Nature. The researchers used the mid-resolution imaging spectrometer (MODIS) and ground gauges from the Terra (Terra) to estimate the drought recovery periods in different regions, and found that drought recovery periods in all land areas of the world became longer. Especially in the tropics and high latitudes of the Northern Hemisphere
【作者單位】： 中國科學院科技戰(zhàn)略咨詢研究院;
【分類號】：P426.616;X171.1
，
本文編號：2267860
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