干旱区生态环境知识资源中心(Arid): Net CO2 exchange in a rural area of the upper Spanish plateau

Arid

	Net CO2 exchange in a rural area of the upper Spanish plateau
	Luisa Sanchez, Maria; De Torre, Beatriz; Alberto Perez, Isidro; Angeles Garcia, Maria
通讯作者	Sanchez, ML
来源期刊	FISICA DE LA TIERRA
ISSN	0214-4557
EISSN	1988-2440
出版年	2007
卷号	19 页码:107-116
英文摘要	In 2004 we installed a CO2 eddy-correlation system at the CIBA centre located in an agriculture area in the geographical centre of the semi-arid upper Spanish plateau. 30-min Net Ecosystem Exchange measurements, NEE, were systematically performed from February to January 2005 (except in August). The period of study was dominated by drought, the yearly accumulated rainfall amounting to 300 mm. This paper presents the most relevant experimental results obtained, identifies the main driving factors governing NEE and assesses the influence of one of the most common vegetation indexes, the Normalized Difference Vegetation Index, NDVI, on gross primary production (GPP) in the growing season. The NDVI data used correspond to the MODIS 16-day composites. The results obtained show: 1) a marked seasonal variation featured by CO2 uptake during the growing season (March-June 16) and CO2 emissions from October to January. 2) low monthly NEE means ranging from 0.21 to -1.39 mu mol/m(2).s, 3) consistent diurnal cycles with their corresponding Photosynthetic Active Radiation, PAR, and vegetation cover evolution and 4) a satisfactory linear relationship of GPP versus MODIS 16-day NDVI during the growing season (R-2=81.8%).
英文关键词	CO2 exchange Net Ecosystem Exchange NEE Eddy Gross primary production GPP Relationship between GPP and NDVI
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000215041300008
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328877
作者单位	[Luisa Sanchez, Maria; De Torre, Beatriz; Alberto Perez, Isidro; Angeles Garcia, Maria] Univ Valladolid, Dept Appl Phys, Valladolid, Spain
推荐引用方式 GB/T 7714	Luisa Sanchez, Maria,De Torre, Beatriz,Alberto Perez, Isidro,et al. Net CO2 exchange in a rural area of the upper Spanish plateau[J],2007,19:107-116.
APA	Luisa Sanchez, Maria,De Torre, Beatriz,Alberto Perez, Isidro,&Angeles Garcia, Maria.(2007).Net CO2 exchange in a rural area of the upper Spanish plateau.FISICA DE LA TIERRA,19,107-116.
MLA	Luisa Sanchez, Maria,et al."Net CO2 exchange in a rural area of the upper Spanish plateau".FISICA DE LA TIERRA 19(2007):107-116.