气候变化领域集成服务门户(CCPortal): Afforestation in China cools local land surface temperature

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DOI	10.1073/pnas.1315126111
	Afforestation in China cools local land surface temperature
	Peng, Shu-Shi; Piao, Shilong; Zeng, Zhenzhong; Ciais, Philippe; Zhou, Liming; Li, Laurent Z. X.; Myneni, Ranga B.; Yin, Yi; Zeng, Hui
通讯作者	Piao, SL (通讯作者)
发表日期	2014
ISSN	0027-8424
起始页码	2915
结束页码	2919
卷号	111 期号:8
英文摘要	China has the largest afforested area in the world (similar to 62 million hectares in 2008), and these forests are carbon sinks. The climatic effect of these new forests depends on how radiant and turbulent energy fluxes over these plantations modify surface temperature. For instance, a lower albedo may cause warming, which negates the climatic benefits of carbon sequestration. Here, we used satellite measurements of land surface temperature (LST) from planted forests and adjacent grasslands or croplands in China to understand how afforestation affects LST. Afforestation is found to decrease daytime LST by about 1.1 +/- 0.5 degrees C (mean +/- 1 SD) and to increase nighttime LST by about 0.2 +/- 0.5 degrees C, on average. The observed daytime cooling is a result of increased evapotranspiration. The nighttime warming is found to increase with latitude and decrease with average rainfall. Afforestation in dry regions therefore leads to net warming, as daytime cooling is offset by nighttime warming. Thus, it is necessary to carefully consider where to plant trees to realize potential climatic benefits in future afforestation projects.
关键词	SCALE DEFORESTATION CLIMATE-CHANGE IMPACT MODIS FEEDBACKS PRODUCTS BENEFITS FORESTS SYSTEM RANGE
英文关键词	vegetation feedback; climate change mitigation; plantation effects; surface cooling
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000332180900019
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258407
推荐引用方式 GB/T 7714	Peng, Shu-Shi,Piao, Shilong,Zeng, Zhenzhong,et al. Afforestation in China cools local land surface temperature[J]. 中国科学院青藏高原研究所,2014,111(8).
APA	Peng, Shu-Shi.,Piao, Shilong.,Zeng, Zhenzhong.,Ciais, Philippe.,Zhou, Liming.,...&Zeng, Hui.(2014).Afforestation in China cools local land surface temperature.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,111(8).
MLA	Peng, Shu-Shi,et al."Afforestation in China cools local land surface temperature".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111.8(2014).