气候变化领域集成服务门户(CCPortal): Phenology shift from 1989 to 2008 on the Tibetan Plateau: an analysis with a process-based soil physical model and remote sensing data

CCPortal

DOI	10.1007/s10584-013-0722-7
	Phenology shift from 1989 to 2008 on the Tibetan Plateau: an analysis with a process-based soil physical model and remote sensing data
	Jin, Zhenong; Zhuang, Qianlai; He, Jin-Sheng; Luo, Tianxiang; Shi, Yue
通讯作者	Jin, ZN (通讯作者)
发表日期	2013
ISSN	0165-0009
EISSN	1573-1480
起始页码	435
结束页码	449
卷号	119 期号:2
英文摘要	Phenology is critical to ecosystem carbon quantification, and yet has not been well modeled considering both aboveground and belowground environmental variables. This is especially true for alpine and pan-arctic regions where soil physical conditions play a significant role in determining the timing of phenology. Here we examine how the spatiotemporal pattern of satellite-derived phenology is related to soil physical conditions simulated with a soil physical model on the Tibetan Plateau for the period 1989-2008. Our results show that spatial patterns and temporal trends of phenology are parallel with the corresponding soil physical conditions for different study periods. On average, 1 degrees C increase in soil temperature advances the start of growing season (SOS) by 4.6 to 9.9 days among different vegetation types, and postpones the end of growing season (EOS) by 7.3 to 10.5 days. Soil wetting meditates such trends, especially in areas where warming effect is significant. Soil thermal thresholds for SOS and EOS, defined as the daily mean soil temperatures corresponding to the phenological metrics, are spatially clustered, and are closely correlated with mean seasonal temperatures in Spring and Autumn, respectively. This study highlights the importance and feasibility of incorporating spatially explicit soil temperature and moisture information, instead of air temperature and precipitation, into phenology models so as to improve carbon modeling. The method proposed and empirical relations established between phenology and soil physical conditions for Alpine ecosystems on the Tibetan plateau could also be applicable for other cold regions.
关键词	DELAYED SPRING PHENOLOGY TERRESTRIAL ECOSYSTEMS VARIABILITY WINTER INDEX MODIS
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000321955100017
来源期刊	CLIMATIC CHANGE
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/258192
推荐引用方式 GB/T 7714	Jin, Zhenong,Zhuang, Qianlai,He, Jin-Sheng,et al. Phenology shift from 1989 to 2008 on the Tibetan Plateau: an analysis with a process-based soil physical model and remote sensing data[J]. 中国科学院青藏高原研究所,2013,119(2).
APA	Jin, Zhenong,Zhuang, Qianlai,He, Jin-Sheng,Luo, Tianxiang,&Shi, Yue.(2013).Phenology shift from 1989 to 2008 on the Tibetan Plateau: an analysis with a process-based soil physical model and remote sensing data.CLIMATIC CHANGE,119(2).
MLA	Jin, Zhenong,et al."Phenology shift from 1989 to 2008 on the Tibetan Plateau: an analysis with a process-based soil physical model and remote sensing data".CLIMATIC CHANGE 119.2(2013).