干旱区生态环境知识资源中心(Arid): Estimation of aboveground biomass in conserved areas of Stipa tenacissima L. stands in the high steppes of western Algeria by mean of the Landsat 8 imagery-based vegetation indices

Arid

DOI	10.1111/aje.12623
	Estimation of aboveground biomass in conserved areas of Stipa tenacissima L. stands in the high steppes of western Algeria by mean of the Landsat 8 imagery-based vegetation indices
	Benseghir, Louai 1,2; Kadi-Hanifi, Halima 1; Bachari, Nour El Islam 1
通讯作者	Benseghir, Louai
来源期刊	AFRICAN JOURNAL OF ECOLOGY
ISSN	0141-6707
EISSN	1365-2028
出版年	2019
卷号	57 期号:4 页码:466-476
英文摘要	The main aim of this paper was to evaluate the use of OLI spectral data as a tool to assess the steppe vegetation in a conservation context. The field sampling was conducted for two specific areas of treatment (a) an exclosure area and (b) a free grazing area. After testing several vegetation indices (VIs), the optimal results were obtained for the Normalised Difference Vegetation Index (NDVI)-based aboveground biomass model with r(2) = 0.61 and r(2) = 0.72 for total and perennial biomass, respectively. No difference between observed and predicted total and perennial biomass was found (p = 0.700 and p = 0.306, respectively). The comparison between the two treatments using the field sampling revealed a significant difference on total plant cover (p = 0.016) and total biomass (p = 0.005), with a plant cover of 50.6% and a biomass of 325.771 kg dry matter per hectare (kg DM ha(-1)) on average in grazed area and 66.9%, 1,407.869 kg DM ha(-1) in exclosure. Finally, a concordance is noted between the results obtained by the NDVI-based biomass model and the field sampling-based biomass.
英文关键词	conservation desertification exclosure linear model overgrazing vegetation indices
类型	Article
语种	英语
国家	Algeria
收录类别	SCI-E
WOS记录号	WOS:000497091000003
WOS关键词	SOIL PROPERTIES ; GRAZING EXCLOSURE ; SPECTRAL INDEXES ; COVER ; RANGELAND ; ECOSYSTEMS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311061
作者单位	1.Univ Sci & Technol Houari Boumediene, Fac Sci Biol, Dept Ecol, Algiers, Algeria; 2.Univ Mhamed Bougara Boumeides, Fac Sci Nat & Vie, Dept Biol, 35000 Ave Independance, Boumerdes, Algeria
推荐引用方式 GB/T 7714	Benseghir, Louai,Kadi-Hanifi, Halima,Bachari, Nour El Islam. Estimation of aboveground biomass in conserved areas of Stipa tenacissima L. stands in the high steppes of western Algeria by mean of the Landsat 8 imagery-based vegetation indices[J],2019,57(4):466-476.
APA	Benseghir, Louai,Kadi-Hanifi, Halima,&Bachari, Nour El Islam.(2019).Estimation of aboveground biomass in conserved areas of Stipa tenacissima L. stands in the high steppes of western Algeria by mean of the Landsat 8 imagery-based vegetation indices.AFRICAN JOURNAL OF ECOLOGY,57(4),466-476.
MLA	Benseghir, Louai,et al."Estimation of aboveground biomass in conserved areas of Stipa tenacissima L. stands in the high steppes of western Algeria by mean of the Landsat 8 imagery-based vegetation indices".AFRICAN JOURNAL OF ECOLOGY 57.4(2019):466-476.