Urban roads are especially vulnerable to waterlogging during rainfall events. Assessments of urban road risk critical for disaster prevention and mitigation. This paper presents a rapid practical approach assessing the based on source–pathway–receptor concept digital elevation model (DEM). Waterlogging sources identified by neighborhood analysis, overland flow pathways extracted using DEM, prop...

In three-dimensional QED, a quantum Hall effect occurs in the absence of any magnetic field. We give a simple and transparent explanation. In solid-state physics, the Hall conductivity for rational magnetic flux is expected to be given by a Chern number. In our field-free situation, however, the conductivity is ±1/2 in natural units. We explain why the integrality of the conductivity breaks dow...

Like struggling swimmers trying to keep their heads above water, rosette plants lift up their leaves when faced with flooding. Instead of flailing arms and legs, plants use hyponastic petiole growth to improve their chances of keeping leaves in contact with the air. During this hyponastic growth, cells on the abaxial side of the petiole elongate more than those on the adaxial side, changing the...

Under the synergetic effect of land use and climate change, natural disasters occur frequently in karst region southwest China. This study used daily precipitation data from 33 meteorological stations across 61 years (1960–2020), utilized MK test Z index to calculate levels drought waterlogging (DW) at multiple times (month year) spatial (province, sub-divisions, station) scales, investigated s...

Paddy soils have an environment in which waterlogging and drainage occur during the rice growing season. Fingerprinting analysis based on soil RNA indicated that active microbial populations changed in response to water management conditions, although the fundamental microbial community was stable as assessed by DNA-based fingerprinting analysis. Comparative clone library analysis based on bact...

Waterlogging is an increasingly important issue in irrigated agriculture that has a detrimental impact on crop productivity. The above-ground effect of waterlogging crops hard to distinguish from water deficit stress with remote sensing, as responses such stomatal closure and leaf wilting occur both situations. Currently, source not considered sensing-based evaporation algorithms this may there...

salix integra thunb. is a shrub distributed in china along the huai river riparian zone, and plays an important role in water and soil conservation. s. integra shrub land is easily submerged during july to october due to the flooding of huai river. in order to characterize the physiological mechanisms of waterlogging tolerance of s. integra and to help rationally select waterlogging-tolerant sp...