With the rapid development of urbanization in China, urban waterlogging has become a significant problem constructing safety human environment. As an essential manifestation modernization governance system and capacity, city physical examination establishes multi-criteria evaluation for diagnosis, rectification, improvement. In order to accurately identify risk waterlogging, concept special was...

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...

Experiments were performed to determine the source(s) of ethylene-causing epinasty in flooded tomato plants (Lycopersicon esculentum Mill.). Simultaneous measurements were made of ethylene synthesized by the roots and shoots of tomato plants exposed to either aerobic or anaerobic atmospheres in the root zone. When the root zone was made anaerobic by a flowing stream of N(2) gas, petiole epinast...

Tracer gas studies and oxygen uptake measurements have shown that pressurized gas transport improves oxygen supply to roots in the wetland tree species Taxodium distichum L. Rich. (Taxodiaceae), Betula pubescens J.F. Ehrh. (Betulaceae), and Populus tremula L. (Salicaceae), but not in Acer pseudoplatanus L. and Ilex aquifolium L., which are found in drier habitats. In the deciduous tree species ...

The present study aims to find out an optimum policy for pumping out the optimized volume of groundwater obtained from the authors' earlier Two Level Optimization Model [N.K. Garg, A. Ali, 1998. Two level optimization model for Lower Indus Basin. Agric. Water Manage. 36, 1±21] for the Dadu Canal Command of the Lower Indus Basin. It is shown that the tubewells in this canal command may be operat...

To understand the responsive nature to excess water, a pot experiment was conducted at different growth stages of sesame (Sesamum indicum L. cv. BARI Til-4). The waterlogging stress each stage set three durations, viz. 2, 4, and 6 days. Twelve treatment combinations were replicated times arranged in completely randomized design. Different morpho-physiological yield parameters measured after com...