干旱区生态环境知识资源中心(Arid): Temperature limitations in the use of hydrogels on leptosols in a semi-arid region of Brazil

Arid

DOI	10.1016/j.geodrs.2021.e00407
	Temperature limitations in the use of hydrogels on leptosols in a semi-arid region of Brazil
	Vasconcelos Nascimento, Carla Danielle; Anunciato Mota, Jaedson Claudio; Nascimento, Icaro Vasconcelos; da Silva Albuquerque, Gustavo Henrique; Simmons, Robert William; dos Santos Dias, Carlos Tadeu; Gomes Costa, Mirian Cristina
通讯作者	Nascimento, CDV (corresponding author), Univ Fed Ceara, Dept Soil Sci, Av Mister Hull 2977, BR-60021970 Fortaleza, Ceara, Brazil.
来源期刊	GEODERMA REGIONAL
ISSN	2352-0094
出版年	2021
卷号	26
英文摘要	Due to their high-water retention capacity, hydrogels are considered promising soil conditioners to improve soil plant available water content in semi-arid environments; however, little is known about how soil temperature affects the functionality of hydrogels. In this study, the effect of soil temperature on physical attributes of soil amended with a Acrylamide-co-Potassium Acrylate hydrogel was evaluated. A laboratory experiment was installed in a scheme (4 x 4) x 4 - four soil temperatures (30, 45, 65 and 105 degrees C), four exposure times (40, 70, 100, and 130 days) with four repetitions. The test soil was a Leptsol with sandy loam texture and of the hydrogel was applied at a dose of 0.1% w w(-1). Soil moisture at field capacity (theta(FC)) and permanent wilting point (theta(WP)), plant available water (AW), bulk density (BD), and soil porosity were evaluated. The resulting data was subjected to two-way analysis of variance. The hydrogel increased the theta(FC) of the soil, from 0.14 to 0.19 m(3) m(-3) at 45 degrees C and 56 days. At 40 days, a minimum theta(WP) (0.05 m(3) m(-3)) was observed at 92 degrees C. In general, theta(FC) increased, while the theta(WP) decreased, providing improved soil water storage. Plant available water was up to three times higher in soil with hydrogel across a temperature range of 30-105 degrees C. In all treatments irrespective of temperature and exposure time, the soil BD and porosity were improved in comparison to the un-amended control. This constitutes an advantage in the use of the hydrogel as a soil conditioner. Even with the interaction of abiotic factors acting on the hydrogel, there are beneficial effects on the water storage capacity, soil BD, and soil porosity.
英文关键词	Superabsorbent hydrogel Physical soil properties Water storage
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000687659900007
WOS关键词	SOIL-WATER ; SUPERABSORBENT POLYMERS ; PHYSICAL-PROPERTIES ; RETENTION ; MOISTURE ; CONDITIONER ; COMPOSITE ; SUBSTRATE ; BEHAVIOR ; DENSITY
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363403
作者单位	[Vasconcelos Nascimento, Carla Danielle; Anunciato Mota, Jaedson Claudio; Nascimento, Icaro Vasconcelos; da Silva Albuquerque, Gustavo Henrique; dos Santos Dias, Carlos Tadeu; Gomes Costa, Mirian Cristina] Univ Fed Ceara, Dept Soil Sci, Av Mister Hull 2977, BR-60021970 Fortaleza, Ceara, Brazil; [Simmons, Robert William] Cranfield Univ, Cranfield, Beds, England
推荐引用方式 GB/T 7714	Vasconcelos Nascimento, Carla Danielle,Anunciato Mota, Jaedson Claudio,Nascimento, Icaro Vasconcelos,et al. Temperature limitations in the use of hydrogels on leptosols in a semi-arid region of Brazil[J],2021,26.
APA	Vasconcelos Nascimento, Carla Danielle.,Anunciato Mota, Jaedson Claudio.,Nascimento, Icaro Vasconcelos.,da Silva Albuquerque, Gustavo Henrique.,Simmons, Robert William.,...&Gomes Costa, Mirian Cristina.(2021).Temperature limitations in the use of hydrogels on leptosols in a semi-arid region of Brazil.GEODERMA REGIONAL,26.
MLA	Vasconcelos Nascimento, Carla Danielle,et al."Temperature limitations in the use of hydrogels on leptosols in a semi-arid region of Brazil".GEODERMA REGIONAL 26(2021).