A new proposal of the classification of irrigation water

被引：213

作者：

Maia Meireles, Ana Celia ^{[1
]}

de Andrade, Eunice Maia ^{[1
]}

Guerreiro Chaves, Luiz Carlos ^{[1
]}

Frischkorn, Horst ^{[2
]}

Crisostomo, Lindbergue Araujo ^{[3
]}

机构：

[1] CCA UFC, Dept Agr Engn, Fortaleza, Ceara, Brazil

[2] DEHA UFC, Dept Engn Hidraul & Ambiental, Fortaleza, Ceara, Brazil

[3] Embrapa Agroind Trop, Fortaleza, Ceara, Brazil

来源：

REVISTA CIENCIA AGRONOMICA | 2010年 / 41卷 / 03期

关键词：

Water Irrigation; Soils-salinity; Soils-sodium content; Acarau Basin (Brazil); RIVER WATER; QUALITY; SOIL;

D O I：

10.1590/S1806-66902010000300005

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

A study on surface water quality in the Acarau Basin, in the North of the state of Ceara, Brazil was performed. Qualitative dynamics of water flowing to the Acarau River that supplies water to the irrigation project in the area was evaluated. Multivariate Factor Analysis/Principal Component Analysis was used for evaluation of water quality in order to develop a water quality index (WQI) that reflects soil salinity and sodicity risks and water toxicity to plants. From April/2003 to September/2005 water were sampled from ten sampling sites covering the basin, where physical and chemical parameters that contribute to the WQI were evaluated. The results showed that the use of water for irrigation in the Acarau basin, according to the proposed WQI, are potentially prone to cause toxicity (crop cycle) and sodicity problem in the long run, if the soil-water-plant is not carefully monitored.

引用

页码：349 / 357

页数：9

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