干旱区生态环境知识资源中心(Arid): Modelling the productivity of Siberian larch forests from Landsat NDVI time series in fragmented forest stands of the Mongolian forest-steppe

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DOI	10.1007/s10661-021-08996-1
	Modelling the productivity of Siberian larch forests from Landsat NDVI time series in fragmented forest stands of the Mongolian forest-steppe
	Erasmi, Stefan; Klinge, Michael; Dulamsuren, Choimaa; Schneider, Florian; Hauck, Markus
通讯作者	Klinge, M (corresponding author), Univ Goettingen, Inst Geog, Dept Phys Geog, Goldschmidtstr 5, D-37077 Gottingen, Germany.
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2021
卷号	193 期号:4
英文摘要	The monitoring of the spatial and temporal dynamics of vegetation productivity is important in the context of carbon sequestration by terrestrial ecosystems from the atmosphere. The accessibility of the full archive of medium-resolution earth observation data for multiple decades dramatically improved the potential of remote sensing to support global climate change and terrestrial carbon cycle studies. We investigated a dense time series of multi-sensor Landsat Normalized Difference Vegetation Index (NDVI) data at the southern fringe of the boreal forests in the Mongolian forest-steppe with regard to the ability to capture the annual variability in radial stemwood increment and thus forest productivity. Forest productivity was assessed from dendrochronological series of Siberian larch (Larix sibirica) from 15 plots in forest patches of different ages and stand sizes. The results revealed a strong correlation between the maximum growing season NDVI of forest sites and tree ring width over an observation period of 20 years. This relationship was independent of the forest stand size and of the landscape's forest-to-grassland ratio. We conclude from the consistent findings of our case study that the maximum growing season NDVI can be used for retrospective modelling of forest productivity over larger areas. The usefulness of grassland NDVI as a proxy for forest NDVI to monitor forest productivity in semi-arid areas could only partially be confirmed. Spatial and temporal inconsistencies between forest and grassland NDVI are a consequence of different physiological and ecological vegetation properties. Due to coarse spatial resolution of available satellite data, previous studies were not able to account for small-scaled land-cover patches like fragmented forest in the forest-steppe. Landsat satellite-time series were able to separate those effects and thus may contribute to a better understanding of the impact of global climate change on natural ecosystems.
英文关键词	Forest-steppe NDVI Tree productivity Tree ring Remote sensing Dendrochronology
类型	Article
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000630365400001
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350133
作者单位	[Erasmi, Stefan] Thuenen Inst Farm Econ, Bundesallee 63, D-38116 Braunschweig, Germany; [Klinge, Michael; Schneider, Florian] Univ Goettingen, Inst Geog, Dept Phys Geog, Goldschmidtstr 5, D-37077 Gottingen, Germany; [Dulamsuren, Choimaa; Hauck, Markus] Univ Freiburg, Fac Environm & Nat Resources, Appl Vegetat Ecol, Tennenbacher Str 4, D-79106 Freiburg, Germany
推荐引用方式 GB/T 7714	Erasmi, Stefan,Klinge, Michael,Dulamsuren, Choimaa,et al. Modelling the productivity of Siberian larch forests from Landsat NDVI time series in fragmented forest stands of the Mongolian forest-steppe[J],2021,193(4).
APA	Erasmi, Stefan,Klinge, Michael,Dulamsuren, Choimaa,Schneider, Florian,&Hauck, Markus.(2021).Modelling the productivity of Siberian larch forests from Landsat NDVI time series in fragmented forest stands of the Mongolian forest-steppe.ENVIRONMENTAL MONITORING AND ASSESSMENT,193(4).
MLA	Erasmi, Stefan,et al."Modelling the productivity of Siberian larch forests from Landsat NDVI time series in fragmented forest stands of the Mongolian forest-steppe".ENVIRONMENTAL MONITORING AND ASSESSMENT 193.4(2021).