干旱区生态环境知识资源中心(Arid): Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China

Arid

	Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China
	Sha Zongyao; Zhong Jialin; Bai Yongfei; Tan Xicheng; Li Jonathan
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2016
卷号	8 期号:3 页码:462-477
英文摘要	Spatio-temporal variations of vegetation phenology, e.g. start of green-up season (SOS) and end of vegetation season (EOS), serve as important indicators of ecosystems. Routinely processed products from remotely sensed imagery, such as the normalized difference vegetation index (NDVI), can be used to map such variations. A remote sensing approach to tracing vegetation phenology was demonstrated here in application to the Inner Mongolia grassland, China. SOS and EOS mapping at regional and vegetation type (meadow steppe, typical steppe, desert steppe and steppe desert) levels using SPOT-VGT NDVI series allows new insights into the grassland ecosystem. The spatial and temporal variability of SOS and EOS during 1998-2012 was highlighted and presented, as were SOS and EOS responses to the monthly climatic fluctuations. Results indicated that SOS and EOS did not exhibit consistent shifts at either regional or vegetation type level; the one exception was the steppe desert, the least productive vegetation cover, which exhibited a progressive earlier SOS and later EOS. Monthly average temperature and precipitation in preseason (February, March and April) imposed most remarkable and negative effects on SOS (except for the non-significant impact of precipitation on that of the meadow steppe), while the climate impact on EOS was found to vary considerably between the vegetation types. Results showed that the spatio-temporal variability of the vegetation phenology of the meadow steppe, typical steppe and desert steppe could be reflected by the monthly thermal and hydrological factors but the progressive earlier SOS and later EOS of the highly degraded steppe desert might be accounted for by non-climate factors only, suggesting that the vegetation growing period in the highly degraded areas of the grassland could be extended possibly by human interventions.
英文关键词	phenological timing degradation harmonic analysis human activity climate restoration
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5688563
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335643
作者单位	Sha Zongyao, International Software School, Wuhan University, Wuhan, Hubei 430079, China.; Zhong Jialin, International Software School, Wuhan University, Wuhan, Hubei 430079, China.; Tan Xicheng, International Software School, Wuhan University, Wuhan, Hubei 430079, China.; Bai Yongfei, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.; Li Jonathan, Department of Geography & Environmental Management, University of Waterloo, Waterloo, N2L 3G1, Canada.
推荐引用方式 GB/T 7714	Sha Zongyao,Zhong Jialin,Bai Yongfei,et al. Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China[J],2016,8(3):462-477.
APA	Sha Zongyao,Zhong Jialin,Bai Yongfei,Tan Xicheng,&Li Jonathan.(2016).Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China.Journal of Arid Land,8(3),462-477.
MLA	Sha Zongyao,et al."Spatio-temporal patterns of satellite-derived grassland vegetation phenology from 1998 to 2012 in Inner Mongolia, China".Journal of Arid Land 8.3(2016):462-477.