نتایج جستجو برای: agricultural drought risk
تعداد نتایج: 1065320 فیلتر نتایج به سال:
Agricultural producing fields in Yogyakarta, Indonesia, are suffering as a result of climate change. Drought is becoming more often change, making the agricultural sector vulnerable. Adaptation methods needed to mitigate hazard posed by Farmers' willingness participate change adaptation process investigated this study, particularly light increasing risk drought. Contingent valuation method (CVM...
Drought is a one of the most important natural disasters that have high socio-economic and environmental impacts. However, drought is more than a physical phenomenon or natural event. Its impact results from the relation between a natural event and demands on the water supply, and it is often exacerbated by human activities. The traditional approach to drought management has been reactive, re...
Drought limits the agricultural production by preventing the crop plants from expressing their full genetic potential. Three mechanisms, namely drought escape, drought avoidance and drought tolerance are involved in drought resistance. Various morphological, physiological and biochemical characters confer drought resistance. Morphological and physiological characters show different types of inh...
Some model experiments predict a large-scale substitution of Amazon forest by savannah-like vegetation by the end of the twenty-first century. Expanding global demands for biofuels and grains, positive feedbacks in the Amazon forest fire regime and drought may drive a faster process of forest degradation that could lead to a near-term forest dieback. Rising worldwide demands for biofuel and mea...
The large socioeconomic costs of droughts make them a crucial target for impact assessments of climate change scenarios. Using multiple drought metrics and a set of simulations with the Community Earth System Model targeting 1.5°C and 2°C above preindustrial global mean temperatures, we investigate changes in aridity and the risk of consecutive drought years. If warming is limited to 2°C, these...
Background: Drought can be considered as a characteristic deviation from the normal climatic conditions that manifest itself in variables like rainfall, soil moisture and level of water rivers and underground water. According to the National Drought Monitoring and Warning Center of Iran and based on the SPI index, by February 2017, around 60% of Kerman Province was involved in severe drought, a...
Agricultural drought, a common phenomenon in most parts of the world, is one of the most challenging natural hazards to monitor effectively. Land surface water index (LSWI), calculated as a normalized ratio between near infrared (NIR) and short-wave infrared (SWIR), is sensitive to vegetation and soil water content. This study examined the potential of a LSWI-based, drought-monitoring algorithm...
identification and analysis of farmers’ vulnerability associated with their risk aversion degree is one of the necessary requirements for planning and reducing impacts of drought in iran. so, this study was investigated three risk vulnerability parameters (economic, social and technical) among wheat farmers categorized in accordance with their risk aversion degree in the mashhad county (iran) b...
Abstract Drought‐related risks pose a threat to the agricultural sector of Guyana despite country's wealth freshwater resources. As result, advancement understanding soil moisture deficits as means forecasting drought is needed aid farmers, extension officers, and other decision‐makers. Hence, this study has been motivated by following research question: Can Tropical Applications Meteorology us...
[1] Texas experienced the most extreme one-year drought on record in 2011 with precipitation at 40% of long-term mean and agricultural losses of ~$7.6 billion. We assess the value of Gravity Recovery and Climate Experiment (GRACE) satellite-derived total water storage (TWS) change as an alternative remote sensing-based drought indicator, independent of traditional drought indicators based on in...
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