Amani Mahindawansha

ORCID: 0000-0003-3448-5141
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About
Contact & Profiles
Research Areas
  • Rice Cultivation and Yield Improvement
  • Hydrology and Watershed Management Studies
  • Plant Water Relations and Carbon Dynamics
  • Groundwater and Isotope Geochemistry
  • Soil and Water Nutrient Dynamics
  • Soil and Unsaturated Flow
  • Isotope Analysis in Ecology
  • Geophysics and Gravity Measurements
  • Plant responses to water stress
  • Water-Energy-Food Nexus Studies
  • Irrigation Practices and Water Management
  • Karst Systems and Hydrogeology
  • Groundwater flow and contamination studies
  • Climate variability and models
  • Agriculture, Soil, Plant Science

University of Kassel
2021-2023

Justus-Liebig-Universität Gießen
2018-2021

International Rice Research Institute
2018-2021

Institute for Environmental Management
2019

Abstract. Reliable information on water flow dynamics and losses via irrigation irrigated agricultural fields is important to improve management strategies. We investigated the effect of season (wet dry season), (flooded non-flooded), crop diversification rice, maize) soil evaporation during plant growth. Soil was extracted analysed for stable isotopes (δ2H δ18O). The fraction were determined using Craig–Gordon equation. For rice maize, in shallow layers (0 0.2 m) more isotopically enriched...

10.5194/hess-24-3627-2020 article EN cc-by Hydrology and earth system sciences 2020-07-22

High-resolution data on a field scale is very important for improving our understanding of hydrological processes. This particularly the case water-demanding agricultural production systems such as rice paddies, which water-saving strategies need to be developed. Here we report application an in situ, automatic sampling system high-resolution stable isotopes water (18O and 2H). We investigate multiple rice-based cropping consisting wet rice, dry maize, with single, but distributed analytical...

10.3390/w10101327 article EN Water 2018-09-25

Patterns of stable isotopes water (18O and 2H) in precipitation have been used as tracers for analyzing environmental processes which can be changed by factors such the topography or meteorological variables. In this study, we investigated isotopic data one year low mountain range North Hesse, Germany, analyzed mainly altitude, rainfall amount, air temperature effects on a regional scale. The results indicate that composition expressed an altitude effect with gradient −0.14‰/100 m δ18O,...

10.3390/w14233910 article EN Water 2022-12-01

Abstract. Reliable information on water flow dynamics and losses via irrigation irrigated agricultural fields is important to advance management strategies. We investigated the effect of season (wet season, dry season), (flooded, non-flooded), crop diversification rice, maize) soil evaporation during plant growth. Soil was extracted analyzed for stable isotopes (δ2H δ18O), fraction loss determined using Craig–Gorden equation. For all crops, shallow compartments (0 0.2 m) were more...

10.5194/hess-2019-213 article EN cc-by 2019-06-21

The hyporheic zone plays a critical role in nutrient cycling, biogeochemical processes, and overall stream ecosystem health. Variation of physical chemical properties the affects quality quantity exchange process. To gain depth-oriented insight into functioning, isotopic (18O 2H) analysis (major ions such as K+, Na+, Mg2+, Ca2+, Cl-, SO42-, NO3-) was carried out focusing on differences between upstream downstream conditions. Multi-level interstitial probes were used to take subsurface water...

10.5194/egusphere-egu24-17630 preprint EN 2024-03-11

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10.2139/ssrn.4766837 preprint EN 2024-01-01

We would like to thank you for the valuable feedback provided our manuscript entitled, "Estimating water flux and evaporation losses using stable isotopes of soil

10.5194/hess-2019-213-ac3 preprint EN 2019-09-27

We would like

10.5194/hess-2019-213-ac4 preprint 2019-09-27

<p>The groundwater-surface water interface, which is known as hyporheic zone, a dynamic system that plays an important role in the hydrological functioning of catchments. During flow exchange, there are many chemical attenuation processes due to variation physical and properties including surface morphology riverbed. The fluctuations may depend on seasonality, climatic well local variations such soil structure, geology, land use, sources...

10.5194/egusphere-egu22-1199 preprint EN 2022-03-27

<p>In rice production areas in the world, increasing water scarcity is a major problem. Among saving techniques, integrating non-flooded crops into flooded system during dry season one of promising water-saving approaches. Therefore, there necessity to improve understanding flow dynamics and losses crop rotational systems under different climatic conditions irrigated agricultural fields. That can be used lower requirements build more efficient management systems. We...

10.5194/egusphere-egu21-2616 article EN 2021-03-03
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