Responses of barnyardgrass (Echinochloa crus-galli var. crux-galli) to water drained, saturated, or flooded soils were assessed in relation to the aerenchyma formation in crown roots. Plant height, fresh weight of shoots, the number of crown roots, and the fresh weight of roots of 4-week-old barnyardgrass increased in the following order: saturated>drained>flooded. By contrast, aerenchyma was r...

TO THE EDITOR: Chen et al. (1) recently published in the Journal of Applied Physiology a modeling study of lung inflation effects on stretch and stress of an alveolar septum separating aerated and flooded alveoli (1). Chen et al. base their model on two images from an experimental study by Jahar Bhattacharya, David Lederer, and me (3). Chen et al.’s fundamental analysis is sound, a natural exte...

Initial Cadmium (Cd) isotope fractionation studies in cereals ascribed the retention of Cd and its light isotopes to binding sulfur (S). To better understand relation S soils plants, we combined XAS speciation analyses soil-rice systems that were rich S. The included distinct water management (flooded vs. non-flooded) rice accessions with (excluder) without (non-excluder) functional membrane tr...

This paper presents a semi-automatic procedure to discriminate seasonally flooded areas in the shallow temporary marshes of Doñana National Park (SW Spain) by using a radiommetrically normalized long time series of Landsat MSS, TM, and ETM+ images (1974–2014). Extensive field campaigns for ground truth data retrieval were carried out simultaneous to Landsat overpasses. Ground truth was used as ...

Flood maps are a crucial tool to support emergency management, disaster recovery and risk reduction planning. Traditional flood mapping methods are time-consuming, labor intensive, and costly. Our goal in this paper is to introduce a novel technique to aggregate knowledge and information to map coastal flooded areas. We proposed a Difference of Normalized Difference Water Indices (DNDWI) derive...

Flood recurrence frequency is increasing in recent times due to various causes, including climate and land use change. Monitoring of flood events evolution through satellite data is a task of maximal importance to timely provide information about actually flooded areas, escape pathways, or infrastructure damages. Moreover, accurate knowledge of extents and location of flooded areas in past even...

ABSTRACT- Paddy soils make up the largest anthropogenic wetlands on earth. Present study was performed to investigate and compare soil formation of paddy soils with long-term rice cultivation history with non-paddy soils and study the effect of waterlogging on soil pedogenesis. Soil samples were taken from paddy and non-paddy soils derived from the same calcareous parent materials. Some pedogen...

Fertilization affects bacterial communities and element biogeochemical cycling in flooded paddy soils and the effect might differ among soil types. In this study, five paddy soils from Southern China were subjected to urea addition to explore impacts of fertilization on nitrogen oxide (N2O) emission and bacterial community composition under the flooding condition. 16S rRNA gene-based illumina s...

Methane-oxidizing bacteria (methanotrophs) consume a significant but variable fraction of greenhouse-active methane gas produced in wetlands and rice paddies before it can be emitted to the atmosphere. Temporal and spatial dynamics of methanotroph populations in California rice paddies were quantified using phospholipid biomarker analyses in order to evaluate the relative importance of type I a...