Arid
DOI10.5935/1806-6690.20170007
Influence of land use/occupation on water quality in the Trussu river valley, Ceara, Brazil
de Araujo Neto, Jose Ribeiro1; de Andrade, Eunice Maia2; de Queiroz Palacio, Helba Araujo1; de Sales, Maria Monaliza1; Soares Maia, Anthony Rafael3
通讯作者de Araujo Neto, Jose Ribeiro
来源期刊REVISTA CIENCIA AGRONOMICA
ISSN0045-6888
EISSN1806-6690
出版年2017
卷号48期号:1页码:59-69
英文摘要

The growing pressure on water resources has reduced its availability as regards quality. Data was investigated for two different periods, with the aim of evaluating the influence of the use and occupation of space on the temporal dynamics of the quality of surface and groundwater in the perennialised valley of the Trussu River in the State of Ceara, Brazil. The first period was from September 2002 to February 2004 and the second from April 2013 to April 2014. Twenty-two water samples were taken from nine sampling stations, five on the surface and four underground. The same stations were considered, monitoring 12 attributes of water quality for a total of 2,376 analyses. Temporal dynamics were characterised employing a technique of multivariate statistics: hierarchical cluster analysis (HCA). The three groups formed by the surface water were independent of collection time, indicating that there was no significant change at a level of 1%. The main differences between the periods of monitoring were seen in the groundwater, with a reduction in the values of EC, Na+, Cl- and HCO3-, and an increase in the concentrations of the PO43- and NO3- ions during the second period, forming two distinct groups: group 1 comprising the water collected during the first period, and group 2 the water collected from April 2013 to April 2014. These results reflect changes in the quality of the groundwater due to an increase in agricultural area, and show that the change in land use had a greater impact on the groundwater.


英文关键词Water contamination Multivariate analysis Semi-arid region
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000390218400007
WOS关键词BASIN ; REGION ; DAM
WOS类目Agriculture, Multidisciplinary
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/2XILL650/202076
作者单位1.Inst Fed Educ Ciencia & Tecnol Ceara IFCE, Campus Iguatu,Rodovia Iguatu,Km 05 S-N, BR-63500000 Iguatu, CE, Brazil;
2.Univ Fed Ceara, Ctr Ciencias Agr, Dept Engn Agr, Fortaleza, Ceara, Brazil;
3.Co Gestao Recursos Hidr Ceara COGERH, Fortaleza, Ceara, Brazil
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GB/T 7714
de Araujo Neto, Jose Ribeiro,de Andrade, Eunice Maia,de Queiroz Palacio, Helba Araujo,et al. Influence of land use/occupation on water quality in the Trussu river valley, Ceara, Brazil[J],2017,48(1):59-69.
APA de Araujo Neto, Jose Ribeiro,de Andrade, Eunice Maia,de Queiroz Palacio, Helba Araujo,de Sales, Maria Monaliza,&Soares Maia, Anthony Rafael.(2017).Influence of land use/occupation on water quality in the Trussu river valley, Ceara, Brazil.REVISTA CIENCIA AGRONOMICA,48(1),59-69.
MLA de Araujo Neto, Jose Ribeiro,et al."Influence of land use/occupation on water quality in the Trussu river valley, Ceara, Brazil".REVISTA CIENCIA AGRONOMICA 48.1(2017):59-69.
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