Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ldr.2841 |
Organic carbon, nutrient, and salt dynamics in saline soil and switchgrass (Panicum virgatum L.) irrigated with treated municipal wastewater | |
Ganjegunte, Girisha1; Ulery, April2; Niu, Genhua1; Wu, Yanqi3 | |
通讯作者 | Ganjegunte, Girisha |
来源期刊 | LAND DEGRADATION & DEVELOPMENT
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ISSN | 1085-3278 |
EISSN | 1099-145X |
出版年 | 2018 |
卷号 | 29期号:1页码:80-90 |
英文摘要 | This study was conducted to evaluate the effects of treated municipal wastewater irrigation on soil organic carbon (SOC), soil macronutrients, Na, Cl, and SO4 dynamics in soil as well as switchgrass (Panicum virgatum L.) shoots under greenhouse conditions. Average SOC concentrations in upper 60cm increased significantly from the prestudy level of 18Mgha(-1) to between 21 and 23Mgha(-1) at the end of the study (2009-2015) under different treatments. Annual average rate of increase for all four depths (upper 60cm) ranged from 0.6 to 0.8Mgha(-1)y(-1). Nutrient concentration in soil samples was positively influenced by fertilizer application. N, P, and K concentrations in soil and switchgrass shoots were significantly positively correlated. On average, Alamo switchgrass cultivar under irrigated conditions removed 28.5 to 35.7gNm(-2), 2.52 to 3.48gPm(-2), and 29.6 to 38.4gKm(-2), and differences between freshwater and wastewater treatments were not significant. This indicated that wastewater irrigation did not result in excessive accumulation of nutrients in switchgrass tissue. Although salt constituents such as Na, Cl, and SO4 concentrations in soil increased over time as a result of wastewater irrigation, their concentration did not increase in switchgrass shoots, indicating a salt exclusion mechanism. The results of this greenhouse study indicated that the use treated municipal wastewater for irrigation can improve SOC contents of salt affected lands and extend the availability of freshwater in arid regions. |
英文关键词 | "Alamo’ switchgrass cultivar nutrients salinity and sodicity soil organic carbon wastewater |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000423123700008 |
WOS关键词 | BIOMASS PRODUCTION ; PRAIRIE CORDGRASS ; PLANT-GROWTH ; SODIC SOIL ; ACCUMULATION ; QUALITY ; MANAGEMENT ; REMOVAL ; CROP ; GERMINATION |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211465 |
作者单位 | 1.Texas A&M Univ Syst, Texas A&M Agrilife Res, El Paso, TX 79927 USA; 2.New Mexico State Univ, Plant & Environm Sci Dept, Las Cruces, NM 88003 USA; 3.Oklahoma State Univ, Plant & Soil Sci, Stillwater, OK 74078 USA |
推荐引用方式 GB/T 7714 | Ganjegunte, Girisha,Ulery, April,Niu, Genhua,et al. Organic carbon, nutrient, and salt dynamics in saline soil and switchgrass (Panicum virgatum L.) irrigated with treated municipal wastewater[J]. New Mexico State University,2018,29(1):80-90. |
APA | Ganjegunte, Girisha,Ulery, April,Niu, Genhua,&Wu, Yanqi.(2018).Organic carbon, nutrient, and salt dynamics in saline soil and switchgrass (Panicum virgatum L.) irrigated with treated municipal wastewater.LAND DEGRADATION & DEVELOPMENT,29(1),80-90. |
MLA | Ganjegunte, Girisha,et al."Organic carbon, nutrient, and salt dynamics in saline soil and switchgrass (Panicum virgatum L.) irrigated with treated municipal wastewater".LAND DEGRADATION & DEVELOPMENT 29.1(2018):80-90. |
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