干旱区生态环境知识资源中心(Arid): PHYSICAL AND HYDROLOGICAL CHARACTERISTICS AND MODELLING OF THE SOIL WATER RETENTION CURVE IN THE BRAZILIAN SEMI-ARID REGION

Arid

DOI	10.14393/BJ-v38n0a2022-54195
	PHYSICAL AND HYDROLOGICAL CHARACTERISTICS AND MODELLING OF THE SOIL WATER RETENTION CURVE IN THE BRAZILIAN SEMI-ARID REGION
	Neto, Renato Americo de ARAuJO; Magalhaes, Ivomberg Dourado; Lyra, Guilherme Bastos; Maia, Stoecio Malta Ferreira; Lyra, Gustavo Bastos
通讯作者	Magalhaes, ID
来源期刊	BIOSCIENCE JOURNAL
ISSN	1981-3163
出版年	2022
卷号	38
英文摘要	Semiarid regions are characterised by water scarcity, a limiting factor on plant growth and development. The Sertao Canal was built in the semiarid region of Brazil, more specifically in the state of Alagoas, with the aim of making year-round irrigation possible. However, for the best water management, a physical and hydrological knowledge of the soils is necessary. As such, the aim of this study was to determine the physical and hydrological characteristics of three different types of soil (Argisol, Quartzarenic Neossol and Regolithic Neossol) under native vegetation (Caatinga) and agricultural systems in the semiarid region of Alagoas, as well as to adjust the soil water retention characteristic curves. Soil samples were collected at depths of 0-10, 10-20 and 20-30 cm in the municipalities of Inhapi, Delmiro Gouveia and Pariconha, in the state of Alagoas. The points of the moisture characteristic curve were determined by the Richards method, at pressures of 33, 100, 500, 1000 and 1500 kPa. Retention curves were modelled using the exponential decay equation and compared using the van Genuchten equation, modelled with the help of the RETC computer software. Particle size varied according to the textural classification of the different soils, from Sand to a Sandy Clay Loam. The retention curve fluctuated due to the particle size of the soil, with the Red-Yellow Argisol (Inhapi) having a greater capacity for water retention. Extremely sandy soils, such as those in the Delmiro Gouveia region, had a low capacity for retaining water. For each soil sample, the exponential decay equation gave the best fit, with values for R2adjust of greater than 0.93. When the measured soil moisture levels were compared with the levels estimated by the RETC model, some of the treatments were unable to estimate accurately the moisture levels obtained with the soil water retention curves.
英文关键词	Richards Van Genuchten Water management Water deficit
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000924022300018
WOS关键词	HYDRAULIC CONDUCTIVITY ; AGRICULTURE ; IRRIGATION
WOS类目	Agriculture, Multidisciplinary ; Agronomy ; Biology
WOS研究方向	Agriculture ; Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391995
推荐引用方式 GB/T 7714	Neto, Renato Americo de ARAuJO,Magalhaes, Ivomberg Dourado,Lyra, Guilherme Bastos,et al. PHYSICAL AND HYDROLOGICAL CHARACTERISTICS AND MODELLING OF THE SOIL WATER RETENTION CURVE IN THE BRAZILIAN SEMI-ARID REGION[J],2022,38.
APA	Neto, Renato Americo de ARAuJO,Magalhaes, Ivomberg Dourado,Lyra, Guilherme Bastos,Maia, Stoecio Malta Ferreira,&Lyra, Gustavo Bastos.(2022).PHYSICAL AND HYDROLOGICAL CHARACTERISTICS AND MODELLING OF THE SOIL WATER RETENTION CURVE IN THE BRAZILIAN SEMI-ARID REGION.BIOSCIENCE JOURNAL,38.
MLA	Neto, Renato Americo de ARAuJO,et al."PHYSICAL AND HYDROLOGICAL CHARACTERISTICS AND MODELLING OF THE SOIL WATER RETENTION CURVE IN THE BRAZILIAN SEMI-ARID REGION".BIOSCIENCE JOURNAL 38(2022).