Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019860 |
Induced heterogeneity of soil water content and chemical properties by treated wastewater irrigation and its reclamation by freshwater irrigation | |
Rahav, Matan1; Brindt, Naaran1; Yermiyahu, Uri2; Wallach, Rony1 | |
2017-06-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | The recognition of treated wastewater (TWW) as an alternative water resource is expanding in areas with a shortage of freshwater (FW) resources. Today, most orchards in Israel are irrigated with TWW. While the benefits of using TWW for irrigation are apparent, evidence of its negative effects on soil, trees, and yield is accumulating. This study, performed in a commercial TWW-irrigated citrus orchard in central Israel, examined the effects of (1) soil-wettability decrease due to prolonged TWW irrigation on the spatial and temporal distribution of water content and associated chemical properties in the root zone; (2) the conversion of irrigation in half of the TWW-irrigated research plot to FW (2012) for soil reclamation. Electrical resistivity tomography surveys in the substantially water repellent soils revealed that water flow is occurring along preferential flow paths in both plots, leaving behind a considerably nonuniform water-content distribution. This was despite the gradual relief in soil water repellency measured in the FW plots. Four soil-sampling campaigns (spring and fall, 2014-2016), performed in 0-20 and 20-40 cm layers of the research plot, revealed bimodal gravimetrically measured water-content distribution. The preferential flow led to uneven chemical-property distribution, with substantially high concentrations in the dry spots, and lower concentrations in the wet spots along the preferential flow paths. The average salt and nutrient concentrations, which were initially high in both plots, gradually dispersed with time, as concentrations in the FW plots decreased. Nevertheless, the efficiency of reclaiming TWW soil by FW irrigation appears low. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405997000015 |
WOS关键词 | ELECTRICAL-RESISTIVITY TOMOGRAPHY ; LONG-TERM IRRIGATION ; CLAY SOIL ; HYDRAULIC CONDUCTIVITY ; PHYSICAL-PROPERTIES ; REPELLENT SOILS ; 9 BILLION ; FLOW ; EFFLUENT ; REDISTRIBUTION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21631 |
专题 | 资源环境科学 |
作者单位 | 1.Hebrew Univ Jerusalem, Dept Soil & Water Sci, Rehovot, Israel; 2.Agr Res Org, Gilat Res Ctr, Negev, Israel |
推荐引用方式 GB/T 7714 | Rahav, Matan,Brindt, Naaran,Yermiyahu, Uri,et al. Induced heterogeneity of soil water content and chemical properties by treated wastewater irrigation and its reclamation by freshwater irrigation[J]. WATER RESOURCES RESEARCH,2017,53(6). |
APA | Rahav, Matan,Brindt, Naaran,Yermiyahu, Uri,&Wallach, Rony.(2017).Induced heterogeneity of soil water content and chemical properties by treated wastewater irrigation and its reclamation by freshwater irrigation.WATER RESOURCES RESEARCH,53(6). |
MLA | Rahav, Matan,et al."Induced heterogeneity of soil water content and chemical properties by treated wastewater irrigation and its reclamation by freshwater irrigation".WATER RESOURCES RESEARCH 53.6(2017). |
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