QQ客服 官方微博 反馈留言

	Response of surface air temperature to small-scale land clearing across latitudes
	Zhang M.; Wang W.
	2014
关键词	deforestation surface air temperature diurnal temperature range latitudinal pattern amazonian deforestation terrestrial ecosystems tropical deforestation gcm simulation climate carbon sensitivity vegetation impacts
英文摘要	Climate models simulating continental scale deforestation suggest a warming effect of land clearing on the surface air temperature in the tropical zone and a cooling effect in the boreal zone due to different control of biogeochemical and biophysical processes. Ongoing land-use/cover changes mostly occur at local scales (hectares), and it is not clear whether the local-scale deforestation will generate temperature patterns consistent with the climate model results. Here we paired 40 and 12 flux sites with nearby weather stations in North and South America and in Eastern Asia, respectively, and quantified the temperature difference between these paired sites. Our goal was to investigate the response of the surface air temperature to local-scale (hectares) land clearing across latitudes using the surface weather stations as proxies for localized land clearing. The results show that north of 10 degrees N, the annual mean temperature difference (open land minus forest) decreases with increasing latitude, but the temperature difference shrinks with latitude at a faster rate in the Americas [-0.079 (+/- 0.010) degrees C per degree] than in Asia [-0.046 (+/- 0.011) degrees C per degree]. Regression of the combined data suggests a transitional latitude of about 35.5 degrees N that demarks deforestation warming to the south and cooling to the north. The warming in latitudes south of 35 degrees N is associated with increase in the daily maximum temperature, with little change in the daily minimum temperature while the reverse is true in the boreal latitudes.
出处	Environmental Research Letters
卷	9
期	3
收录类别	SCI
语种	英语
ISSN号	1748-9326
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29409]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhang M.,Wang W.. Response of surface air temperature to small-scale land clearing across latitudes. 2014.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。