نتایج جستجو برای: precipitation deficit
تعداد نتایج: 122121 فیلتر نتایج به سال:
Due to low organic matter content in most of the cultivated soils of Iran and occurrence of drought stress in plants because of low precipitation, application of sewage sludge compost has been recommended for increasing soil organic matter content and improving soil fertility, increasing crop tolerance to water deficit and improving crop yield. So, in this study, the effects of soil moisture an...
The aim of this study was to analyze the water demand in banana, papaya and coconut crops grown irrigation districts Araras Norte Baixo Acaraú, located State Ceará. A historical meteorological series regions where from are used. Precipitation, maximum minimum temperatures, relative humidity data were obtained these series. From acquired precipitation data, frequency intensity dry rainy years ar...
Soil water content is a key limiting factor for vegetation growth in the semi-arid area of Chinese Loess Plateau and precipitation main source soil this area. To further understand impact types environmental factors such as on content, we continuously monitored seasonal dynamics four plots (natural grassland, Caragana korshinskii, Armeniaca sibirica Pinus tabulaeformis) Plateau. The results sho...
A drought-induced water storage deficit index (D-WSDI) was proposed to quantify the response of GRACE-based terrestrial change meteorological drought and impact on deficit. D-WSDI defined as normalized residual component GRACE time series data after removing long-term trend seasonal components. The evaluation based Emergency Events Database (EM-DAT) showed that more than 90% global event...
Global warming is expected to increase the frequency and intensity of droughts in the twenty-first century, but the relative contributions from changes in moisture supply (precipitation) versus evaporative demand (potential evapotranspiration; PET) have not been comprehensively assessed. Using output from a suite of general circulation model (GCM) simulations from phase 5 of the Coupled Model I...
Throughout many arid lands of Africa, Australia and the United States, wildlife agencies provide water year-round for increasing game populations and enhancing biodiversity, despite concerns that water provisioning may favor species more dependent on water, increase predation, and reduce biodiversity. In part, understanding the effects of water provisioning requires identifying why and when ani...
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The midsummer drought (MSD) is a diminution in rainfall experienced during the middle of the rainy season in southern Mexico and Central America, as well as in the adjacent Caribbean, Gulf of Mexico, and eastern Pacific seas. The aim of this paper is to describe the regional characteristics of the MSD and to propose some possible forcing mechanisms. Satellite and in situ data are used to form a...
It is important to understand the response of stem diameter variations in dominant tree species water conditions Northeast China. The results will provide basic information for scientific predictions future development trend temperate forests eastern mountainous area northeast We employed a high-precision dendrometer continuously monitor radial changes six China from 15 April 24 October 2021. P...
drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...
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