Legume seeds are often sown on standing rice crops a few weeks before harvest (relay cropping). Seeds cannot germinate in waterlogged soil under relay sowing as oxygen is depleted. However, may survive waterlogging if the can initiate anaerobic respiration, have large seed reserve such carbohydrates, perform slow water uptake during imbibition and small size. An example of crop that respiration...

Based on the rainfall data of 17 stations in Guangzhou every 15 minutes from 2004 to 2019, using a combination statistical analysis and theoretical analysis, this paper analyzes temporal spatial distribution during interannual flood seasons, intensity frequency rainfall. The pattern change characteristics “5.22” rainstorm showed that annual season an increasing trend central urban area, downwar...

Waterlogging induced by rain in urban areas has a potential risk impact on property and safety. This paper focuses the of waterlogging evaluates central city Shanghai. A simplified depth model is developed different with drainage capacity rainfall consumption simplifying effect complex terrain characteristics hydrological situation. Based its classification collection, Rain-induced Urban Risk M...

The formation of root aerenchyma, the prominent air spaces in the root cortex which are normally induced by waterlogging, has an important role in providing an internal pathway for oxygen transport between roots and the aerial environment. Along this pathway, O2 is supplied to the roots and rhizosphere, while CO2, ethylene, etc. move from the soil to the shoot and the atmosphere. The aerenchyma...