地理研究 ›› 2017, Vol. 36 ›› Issue (7): 1233-1244.doi: 10.11821/dlyj201707004
李侠祥1(), 张学珍2,3(
), 张丽娟1, 郑景云2,3
收稿日期:
2016-12-21
修回日期:
2017-04-10
出版日期:
2017-07-31
发布日期:
2017-09-13
作者简介:
作者简介:李侠祥(1991- ),男,山东临沂人,硕士,主要从事地—气相互作用研究。E-mail:
基金资助:
Xiaxiang LI1(), Xuezhen ZHANG2,3(
), Lijuan ZHANG1, Jingyun ZHENG2,3
Received:
2016-12-21
Revised:
2017-04-10
Online:
2017-07-31
Published:
2017-09-13
摘要:
基于WRF模式,采用1980年和2000年的土地利用/覆盖数据分别进行了连续21年的模拟试验(EXP1980和EXP2000),进而分析了中国东部LUCC对夏季降水影响的不稳定性及其与大尺度气候背景的关系。结果发现:① 中国东部以农—林(草)转换为主要特征的LUCC对夏季降水的影响因年份而异,在1981年、1984年、1986年、1988年、1989年和1996年(LR年),EXP1980比EXP2000中国东部降水偏多,在1992年、1993年、1994年、1995年、1997年和1999年(MR年),EXP2000比EXP1980中国东部降水偏多;② LR年与MR年的气候背景显著不同,MR年相比LR年位势高度场呈“西高东低”,降水场呈“南多北少”的格局,并且该特征得到了NCEP2再分析数据的印证。这意味着20世纪80-90年代南方降水增加可能部分由LUCC所致,北方降水减少则因LUCC而弱化。
李侠祥, 张学珍, 张丽娟, 郑景云. 中国东部土地利用/覆盖变化对夏季降水影响的不稳定性研究[J]. 地理研究, 2017, 36(7): 1233-1244.
Xiaxiang LI, Xuezhen ZHANG, Lijuan ZHANG, Jingyun ZHENG. The varied impacts of land use/cover change on summer precipitation over eastern China[J]. GEOGRAPHICAL RESEARCH, 2017, 36(7): 1233-1244.
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