地理学报 ›› 2019, Vol. 74 ›› Issue (9): 1866-1877.doi: 10.11821/dlxb201909012
收稿日期:
2018-09-10
修回日期:
2019-07-01
出版日期:
2019-09-25
发布日期:
2019-09-25
作者简介:
李双双(1988-), 男, 陕西潼关人, 讲师, 中国地理学会会员(S110011553M), 研究方向为全球变化与区域灾害防治。E-mail: lss40609010@126.com
基金资助:
LI Shuangshuang,YAN Junping(),WU Yaqun,WANG Chengbo
Received:
2018-09-10
Revised:
2019-07-01
Published:
2019-09-25
Online:
2019-09-25
Supported by:
摘要:
基于秦岭—淮河南北及其周边196个气象站点观测资料,构建实际和动态供暖指数,对中国南北过渡带供暖格局变化进行分析,并探讨冬季北极涛动(AO)异常与供暖效率的响应关系。结果表明:① 固定供暖策略下,1960-2016年秦岭—淮河南北实际供暖能耗偏高,呈现“南多北少,西低东高”的变化特征,且低纬度地区供暖需求下降信号早于高纬度;② 对比区域变暖前后,秦岭—淮河南北冬季供暖能耗1960-1990年和1990-2016年两阶段空间特征,发现“整体南高北低,北部东高西低”的格局并未发生变化,供暖南北波动界线依然维持在秦岭山脉—淮河平原中部;③ AO强弱波动与区域冬季供暖能耗具有明显的时空响应关系,是影响中国南北过渡带供暖格局变化的重要因素。当AO负相位时,除四川盆地和巫山山区之外,秦岭—淮河南北其他区域实际供暖能耗明显下降,特别是淮河平原和长江下游的过渡地带响应尤为明显,未来应该有针对性制定气候适应对策。
李双双, 延军平, 武亚群, 汪成博. 秦岭—淮河南北供暖格局变化及其影响因素[J]. 地理学报, 2019, 74(9): 1866-1877.
LI Shuangshuang, YAN Junping, WU Yaqun, WANG Chengbo. Spatiotemporal variability of actual heating energy efficiency and its influencing factors in areas south and north of Qinling-Huaihe Line[J]. Acta Geographica Sinica, 2019, 74(9): 1866-1877.
表1
秦岭—淮河南北实际供暖能耗指数统计特征
指标 | 秦岭—淮河以北 | 秦岭—淮河以南 | |||||
---|---|---|---|---|---|---|---|
关中平原 | 黄河下游 | 秦巴山区 | 淮河平原 | 四川盆地 | 巫山山区 | 长江下游 | |
1960-1990年 | 0.063 | 0.123 | 0.229 | 0.195 | 0.782 | 0.470 | 0.381 |
1990-2016年 | 0.115 | 0.200 | 0.293 | 0.299 | 0.819 | 0.572 | 0.511 |
两阶段增长率(%) | 83.1↑ | 62.0↑ | 27.8↑ | 53.6↑ | 4.7↑ | 21.8↑ | 33.9↑ |
变化趋势(%/10a) | 1.76 | 2.37 | 1.90 | 3.04 | 0.75 | 2.74 | 3.45 |
变异系数 | 0.807 | 0.489 | 0.374 | 0.432 | 0.115 | 0.248 | 0.335 |
Pettier突变点 | 1997 | 1993 | 1997 | 1993 | 1989 | 1989 | 1987 |
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