نتایج جستجو برای: water regime
تعداد نتایج: 619392 فیلتر نتایج به سال:
Due to increasing water and growing demand for food a more efficient water use system is needed for agriculture. This is more evidence for rice production with a higher water use for economical production. A large cultivar×water regime interaction exists for grain yield in rice. Therefore, information is required to adopt new rice cultivars with high yield potential under water-saving condition...
The advocates of the transition sustainability paradigm acknowledge the role of institutions (regime practices) to establish enforceable legislation to tackle environmental problems. In this respect, a radical systemic reconfiguration in regime practices is required to achieve sustainability objectives, i.e. sustainable water resource management. Drawing on the theoretical and methodological fo...
Temporal variability in water temperature plays an important role in aquatic ecosystems, yet the thermal regime of streams has mainly been described in terms of mean or extreme conditions. In this study, annual and diel variability in stream water temperature was described at 135 unregulated, gauged streams across the USA. Based on magnitude, amplitude and timing characteristics of daily water ...
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In order to study the effect of zeolite and biologic fertilizers application under different irrigation regime on yield and quantitative traits in sugar beet, a research project was conducted according split-split plot experiment based on randomized complete block design with four replicates. The main factor included irrigation regime at two levels (Normal and stress), sub factor included zeoli...
The actual aims of rainfall-runoff modelling are to use such tools for the evaluation of different changes in the water regime: first, during complex climatic variability and, second, due to natural land-use changes, which is an urgent matter within the previous long periods. In this context, the desirable information concerning vegetation cover is to be compensated by evapotranspiration as opt...
Seasonal cycles of temperature, water regime and day length act as “Zeitgeber” (timer) triggering stage transitions in the life cycle of organisms provoking temporal patterns of communities at different levels of organization. Climate change is both affecting temperature forcings and water regime. Mathematical models are set up to investigate the mechanisms for the change of temporal patterns i...
the term hydrological drought is applied to represent low water levels in streams, reservoirs and lakes as well as a low groundwater level. base flow index (bfi) as one of low flow indices gives the ratio of base flow to total flow and investigates basin’s ability to store and release of water in drought periods. the objectives of this study were to determine bfi and to validate this index in d...
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