RT Journal T1 Evaluation of the permafrost stability degradation from 1980 to 2010 in China A1 YouHua Ran, Xin Li PB Sciences in Cold and Arid Regions FD 2016-10-01 YR 2016 JF Sciences in Cold and Arid Regions JO Sciences in Cold and Arid Regions VO 8 IS 5 SP 359 DO 10.3724/SP.J.1226.2016.00359 K1 permafrost;mean annual air temperature(MAAT);air temperature;reanalysis;thermal stability LK {http://www.scar.ac.cn/EN/article/article_126.shtml}