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Field Study of Rice Yield Diminished by Soil Arsenic in Bangladesh

Published on Oct 17, 2017in Environmental Science & Technology7.149
· DOI :10.1021/acs.est.7b01487
Brittany L. Huhmann4
Estimated H-index: 4
,
Charles F. Harvey37
Estimated H-index: 37
+ 5 AuthorsA. van Geen66
Estimated H-index: 66
Sources
Abstract
Rice was traditionally grown only during the summer (aman) monsoon in Bangladesh but more than half is now grown during the dry winter (boro) season and requires irrigation. A previous field study conducted in a small area irrigated by a single high-arsenic well has shown that the accumulation of arsenic (As) in soil from irrigating with high-As groundwater can reduce rice yield. We investigated the effect of soil As on rice yield under a range of field conditions by exchanging the top 15 cm of soil between 13 high-As and 13 low-As plots managed by 16 different farmers, and we explore the implications for mitigation. Soil As and rice yields were measured for soil replacement plots where the soil was exchanged and adjacent control plots where the soil was not exchanged. Differences in yield (ranging from +2 to −2 t/ha) were negatively correlated to the differences in soil As (ranging from −9 to +19 mg/kg) between adjacent replacement and control plots during two boro seasons. The relationship between soil ...
  • References (28)
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References28
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#1Mahabub HossainH-Index: 5
#2Wmh JaimH-Index: 1
Last. Mahfuzur RahmanH-Index: 1
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#1Drew E. Latta (Argonne National Laboratory)H-Index: 10
#2Christopher A. Gorski (Eawag: Swiss Federal Institute of Aquatic Science and Technology)H-Index: 22
Last. Michelle M. Scherer (UI: University of Iowa)H-Index: 41
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Recent work has indicated that iron (oxyhydr-)oxides are capable of structurally incorporating and releasing metals and nutrients as a result of Fe2+-induced iron oxide recrystallization. In the present paper, we briefly review the current literature examining the mechanisms by which iron oxides recrystallize and summarize how recrystallization affects metal incorporation and release. We also provide new experimental evidence for the Fe2+-induced release of structural manganese from manganese-do...
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#1Christine Marie George (Johns Hopkins University)H-Index: 14
#2Yan Zheng (Columbia University)H-Index: 36
Last. A. van Geen (Columbia University)H-Index: 66
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Exposure to arsenic in groundwater via drinking remains unabated for millions of villagers in Bangladesh. Since a blanket testing campaign using test kits almost a decade ago, millions of new wells have been installed but not tested; thus affordable testing is needed. The performance of the Arsenic Econo-Quick (EQ) kit was evaluated by blindly testing 123 wells in Bangladesh and comparing with laboratory measure- ments; 65 wells were tested twice. A subset of the same 123 wells was also tested u...
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#1Antonino SpanuH-Index: 1
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The bioaccumulation of arsenic compounds in rice is of great concern worldwide because rice is the staple food for billions of people and arsenic is one of the most toxic and carcinogenic elements at even trace amounts. The uptake of arsenic compounds in rice comes mainly from its interaction with system soil/water in the reducing conditions typical of paddy fields and is influenced by the irrigation used. We demonstrate that the use of sprinkler irrigation produces rice kernels with a concentra...
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2-Line ferrihydrite, a form of iron in uranium mine tailings, is a dominant adsorbent for elements of concern (EOC), such as arsenic. As ferrihydrite is unstable under oxic conditions and can undergo dissolution and subsequent transformation to hematite and goethite over time, the impact of transformation on the long-term stability of EOC within tailings is of importance from an environmental standpoint. Here, studies were undertaken to assess the rate of 2-line ferrihydrite transformation at va...
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Abstract Reduction of As(V) and reductive dissolution and transformation of Fe (hydr)oxides are two dominant processes controlling As retention in soils and sediments. When developed within soils and sediments, Fe (hydr)oxides typically contain various impurities—Al being one of the most prominent—but little is known about how structural Al within Fe (hydr)oxides alters its biotransformation and subsequent As retention. Using a combination of batch and advective flow column studies with Fe(II) a...
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Shallow groundwater, often rich in arsenic (As), is widely used for irrigation of dry season boro rice in Bangladesh. In the long term, this may lead to increasing As contents in rice paddy soils, which threatens rice yields, food quality, and human health. The objective of this study was to quantify gains and losses of soil As in a rice paddy field during irrigation and monsoon flooding over a three-year period. Samples were collected twice a year on a 3D-sampling grid to account for the spatia...
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Last. A. Borhan M. Badruzzaman (BUET: Bangladesh University of Engineering and Technology)H-Index: 12
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Bangladesh relies heavily on groundwater for the irrigation of dry-season rice. Analysis of soil porewater and floodwater in rice paddy fields during the monsoon season in Bangladesh suggests that flooding removes a significant amount of arsenic from the soils.
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#1Paul N. WilliamsH-Index: 37
#2Shofiqul Islam (BAU: Bangladesh Agricultural University)H-Index: 13
Last. Andrew A. MehargH-Index: 83
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A reconnaissance of 23 paddy fields, from three Bangladesh districts, encompassing a total of 230 soil and rice plant samples was conducted to identify the extent to which trace element characteristics in soils and irrigation waters are reflected by the harvested rice crop. Field sites were located on two soil physiographic units with distinctly different As soil baseline and groundwater concentrations. For arsenic (As), both straw and grain trends closely fitted patterns observed for the soils ...
59 CitationsSource
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#2M. Rafiqul Islam (BAU: Bangladesh Agricultural University)H-Index: 17
Last. Richard H. Loeppert (A&M: Texas A&M University)H-Index: 33
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An experiment involving four soils and three irrigation-water As concentrations was conducted in undisturbed soil columns during 2004–2006, with Boro (winter dry-season, flood-irrigated rice, using As-contaminated water for irrigation), T. Aman (summer monsoon, rain-fed flooded rice), Boro, and T. Aman rice grown in sequence, to examine the fate of added As from irrigation water during flooded rice culture. The As content in the column leachate represented only 1.17–5.08% of the total applied As...
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Abstract Rice is an essential food crop that nourishes >50% of the world population. In many regions of Bangladesh rice production is constrained by high soil salinity and heavy metal contamination due to irrigation practices. Plants may naturally overcome such stress through mutualistic interactions with arbuscular mycorrhizal fungi (AMF). Yet, little is known regarding the diversity and composition of AMF communities in rice fields with high saline and arsenic concentration. Here we used high ...
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Abstract The depositions of heavy metal(loid)s (HMs) were measured in an urban agglomeration of China to investigate the fluxes, influencing factors, sources, and potential effects of these HMs. Our results showed that the deposition fluxes of As and Cd were higher in this area than in other regions. In the area, 59.63% of the total deposition fluxes of the Cr, Cu, Ni, Pb and Zn were observed in the wet season (March to July). Lower total fluxes of HMs were observed at the rural site. Principal ...
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Arsenic (As) is highly toxic to plants and detoxified primarily through complexation with phytochelatins (PCs) and other thiol compounds. To understand the mechanisms of As toxicity and detoxification beyond PCs, we isolated an arsenate-sensitive mutant of Arabidopsis ( Arabidopsis thaliana ), arsenate induced chlorosis1 ( aic1 ), in the background of the PC synthase-defective mutant cadmium-sensitive1-3 ( cad1-3 ). Under arsenate stress, aic1 cad1-3 showed larger decreases in chlorophyll conten...
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AbstractSamples of rhizosphere soil, groundwater used for drip irrigation, and mature cotton plants were collected from farms at Kuitun, Xinjiang and analyzed for their arsenic (As) levels to account for the influx and efflux of arsenic in the field. The pH value and the soil-grain-size distribution were found to correlate with the different levels of arsenic accumulated by cotton plants and arable soil layers. The principal component analysis (PCA) indicates that the arsenic level in soil is in...
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WRKYs are transcriptional factors involved in stress tolerance and development of plants. In the present study, we characterized OsWRKY28, a group IIa WRKY gene, in rice, because its expression was found to be upregulated by arsenate exposure in previous transcriptomic studies. Subcellular localization using YFP–OsWRKY28 fusion protein showed that the protein was localized in the nuclei. Transgenic rice plants expressing pOsWRKY28::GUS suggested that the gene was expressed in various tissues in ...
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