干旱区生态环境知识资源中心(Arid): Effect of traditional check dams (jessour) on soil and olive trees water status in Tunisia

Arid

DOI	10.1016/j.scitotenv.2019.06.514
	Effect of traditional check dams (jessour) on soil and olive trees water status in Tunisia
	Castelli, G.1; Oliveira, L. A. A.1,2; Abdelli, F.3; Dhaou, H.3; Bresci, E.1; Ouessar, M.3
通讯作者	Castelli, G.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	690 页码:226-236
英文摘要	In the arid regions of south eastern Tunisia, the land use is predominated by olive trees cropping, where two main cultivation strategies can be found: using of water harvesting techniques to overcome the scarcity and variability of rainfall (in the Matmatta mountains) and dryland farming (in the Jeffara plain). In these arid areas, soil moisture is the main limiting factor for crop growth and it should be monitored to benchmark different management options. Different conventional methods are available for point soil moisture monitoring, but the increased availability of remotely sensed data offers major opportunities for spatial analyses. The aim of this paper is to perform a comparative study on the soil water status for rainfed olive tree growing in three major landscape areas: in the mountains with traditional water harvesting check dams (called jessour), in the piedmont on floodwater harvesting (called tabias), and in the plain with full dryland farming conditions. Time series of Normalized Difference Infrared Index (NDII), derived from Landsat 7 satellite, were retrieved from the novel Google Earth Engine platform. NDII values were related to measured soil water content, which was taken at non-regular time intervals between 2009 and 2017. The analysis of NDII data, indicating the water content of the vegetation, shows that jessour can adequately ensure water supply for olive trees. Increased soil moisture conditions in the jessour areas are visible both in the dry and the humid seasons, indicating the effectiveness of this traditional water harvesting system. Moreover, our results show that Landsat 7 NDII values are correlated with the root-zone soil moisture in the monitoring sites (r(2) ranging from 0.62 to 0.67), allowing the use of NDII to estimate soil water contents in our study area. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Soil moisture Google Earth Engine NDII Water harvesting Rainfed farming
类型	Article
语种	英语
国家	Italy ; Brazil ; Tunisia
收录类别	SCI-E
WOS记录号	WOS:000482549900024
WOS关键词	HARVESTING TECHNIQUES ; MOISTURE ; IMPACT ; CONSERVATION ; CALIBRATION ; RUNOFF ; NDII
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-11-10
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310806
作者单位	1.Univ Firenze, Dept Agr Food Environm & Forestry DAGRI, Florence, Italy; 2.Univ Fed Vicosa, Vicosa, MG, Brazil; 3.IRA, Medenine, Tunisia
推荐引用方式 GB/T 7714	Castelli, G.,Oliveira, L. A. A.,Abdelli, F.,et al. Effect of traditional check dams (jessour) on soil and olive trees water status in Tunisia[J],2019,690:226-236.
APA	Castelli, G.,Oliveira, L. A. A.,Abdelli, F.,Dhaou, H.,Bresci, E.,&Ouessar, M..(2019).Effect of traditional check dams (jessour) on soil and olive trees water status in Tunisia.SCIENCE OF THE TOTAL ENVIRONMENT,690,226-236.
MLA	Castelli, G.,et al."Effect of traditional check dams (jessour) on soil and olive trees water status in Tunisia".SCIENCE OF THE TOTAL ENVIRONMENT 690(2019):226-236.