干旱区生态环境知识资源中心(Arid): Energy balance and irrigation performance assessments in lemon orchards by applying the SAFER algorithm to Landsat 8 images

Arid

DOI	10.1016/j.agwat.2020.106725
	Energy balance and irrigation performance assessments in lemon orchards by applying the SAFER algorithm to Landsat 8 images
	Teixeira, Antonio; Leivas, Janice; Struiving, Tiago; Reis, Joao; Simao, Fulvio
通讯作者	Teixeira, A (corresponding author), Fed Univ Sergipe UFS, Water Resources Program PRORH, Sao Cristovao, SE, Brazil.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	247
英文摘要	In the semiarid conditions of the Sa similar to o Francisco River Basin, Brazil, irrigated fruit crops are replacing natural vegetation, being lemon highlighted by incentives for the national and international markets. This paper aimed to support the rational water management of lemon orchards under different irrigation systems under these conditions. We present a methodology based on the use of the visible and near infrared images from Landsat 8 (L8) satellite together with weather and actual yield data (Y-a), to assess the energy balance components and irrigation performance indicators (IPI) by applying the SAFER (Simple Algorithm for Evapotranspiration Retrieving) in six commercial farms under different irrigation systems inside the basin in the northern Minas Gerais state, Southeast Brazil. The ET rates averaged 2.7 mm d(-1), 2.9 mm d(-1), and 3.7 mm d(-1), for drip, micro sprinkler, and pivot irrigated orchards, respectively. The evaporative fraction (latent heat flux by the available energy) reached above 1.00 for localized irrigation (drip and micro sprinkler), and 1.30 for pivots, during the lemon phenological stages from fruit growth to harvest peaks. Pivot irrigation systems were not recommended under the semi-arid conditions, due to large water direct evaporated from the soil and air close to the surface. For drip and micro sprinkler irrigated orchards, crop coefficient curves were modeled based on the accumulated degree-days (DDac) to estimate lemon crop water requirements. Drip irrigated orchards presented better water productivity levels being recommended together with deficit irrigation strategies which could allow good lemon yields with saving water savings. The most important findings of the current research are that the SAFER algorithm can be applied to estimate crop ET with satellite images without the thermal bands which together with modelled Ya data, irrigation assessments can be carried out at high spatial resolution following the principles of precision agriculture. For replication of the methods in other regions, simple calibrations of the modelling equations can be performed to infer the specific environmental conditions.
英文关键词	Evapotranspiration Crop coefficient Irrigation systems Citrus limon L
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000617777000010
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368928
作者单位	[Teixeira, Antonio] Fed Univ Sergipe UFS, Water Resources Program PRORH, Sao Cristovao, SE, Brazil; [Leivas, Janice] Embrapa Terr, Brasilia, DF, Brazil; [Struiving, Tiago] Lemon Producers Assoc ASLIM, Sao Paulo, Brazil; [Reis, Joao; Simao, Fulvio] Agr Res Corp Minas Gerais EPAMIG, Belo Horizonte, MG, Brazil
推荐引用方式 GB/T 7714	Teixeira, Antonio,Leivas, Janice,Struiving, Tiago,et al. Energy balance and irrigation performance assessments in lemon orchards by applying the SAFER algorithm to Landsat 8 images[J],2021,247.
APA	Teixeira, Antonio,Leivas, Janice,Struiving, Tiago,Reis, Joao,&Simao, Fulvio.(2021).Energy balance and irrigation performance assessments in lemon orchards by applying the SAFER algorithm to Landsat 8 images.AGRICULTURAL WATER MANAGEMENT,247.
MLA	Teixeira, Antonio,et al."Energy balance and irrigation performance assessments in lemon orchards by applying the SAFER algorithm to Landsat 8 images".AGRICULTURAL WATER MANAGEMENT 247(2021).