The drought risk of maize in the farming–pastoral ecotone in Northern China based on physical vulnerability assessment
| Autor: | Jingyi Jiang, Zhiqiang Wang, Qing Ma |
|---|---|
| Přispěvatelé: | Satellite Application Center for Disaster Reduction of the Ministry of Civil Affairs, National Disaster Reduction Centre of China (NDRCC ), Key Laboratory of Disaster Reduction and Emergency Response, Ministry of Civil Affairs, Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), College of Geography, Beijing Normal University, Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), Study on Agricultural Drought Risk Formation Mechanism of the Rain-fed Agricultural Typical Area in China N°41001059, Beijing Normal University (BNU) |
| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
[SDV]Life Sciences [q-bio] Yield (finance) vulnerability 0208 environmental biotechnology Vulnerability Climate change 02 engineering and technology 01 natural sciences lcsh:TD1-1066 parasitic diseases vulnérabilité lcsh:Environmental technology. Sanitary engineering China securité alimentaire global change lcsh:Environmental sciences 0105 earth and related environmental sciences chine lcsh:GE1-350 2. Zero hunger Hydrology changement climatique business.industry lcsh:QE1-996.5 fungi lcsh:Geography. Anthropology. Recreation food and beverages culture de mais Ecotone 15. Life on land Hazard 020801 environmental engineering perte de rendement lcsh:Geology lcsh:G 13. Climate action Agriculture General Earth and Planetary Sciences Environmental science stress à la sécheresse Water resource management business Risk assessment écotone |
| Zdroj: | Natural Hazards and Earth System Sciences, Vol 16, Iss 12, Pp 2697-2711 (2016) Natural Hazards and Earth System Sciences Natural Hazards and Earth System Sciences, European Geosciences Union, 2016, 16 (12), pp.2697-2711. ⟨10.5194/nhess-16-2697-2016⟩ Natural Hazards and Earth System Sciences 12 (16), 2697-2711. (2016) Natural Hazards and Earth System Sciences, Copernicus Publ. / European Geosciences Union, 2016, 16 (12), pp.2697-2711. ⟨10.5194/nhess-16-2697-2016⟩ Natural Hazards and Earth System Sciences, 2016, 16 (12), pp.2697-2711. ⟨10.5194/nhess-16-2697-2016⟩ |
| ISSN: | 1684-9981 1561-8633 |
| DOI: | 10.5194/nhess-16-2697-2016 |
| Popis: | grant entitled "Study on Agricultural Drought Risk Formation Mechanism of the Rain-fed Agricultural Typical Area in China" from the National Science and Technology Foundation 41001059; Climate change is affecting every aspect of human activities, especially the agriculture. In China, extreme drought events caused by climate change have posed a great threat to food safety. In this work we aimed to study the drought risk of maize in the farming-pastoral ecotone in Northern China based on physical vulnerability assessment. The physical vulnerability curve was constructed from the relationship between drought hazard intensity index and yield loss rate. The risk assessment of agricultural drought was conducted from the drought hazard intensity index and physical vulnerability curve. The probability distribution of drought hazard intensity index decreased from south-west to north-east and increased from south-east to north-west along the rainfall isoline. The physical vulnerability curve had a reduction effect in three parts of the farming-pastoral ecotone in Northern China, which helped to reduce drought hazard vulnerability on spring maize. The risk of yield loss ratio calculated based on physical vulnerability curve was lower compared with the drought hazard intensity index, which suggested that the capacity of spring maize to resist and adapt to drought is increasing. In conclusion, the farming-pastoral ecotone in Northern China is greatly sensitive to climate change and has a high probability of severe drought hazard. Risk assessment of physical vulnerability can help better understand the physical vulnerability to agricultural drought and can also promote measurements to adapt to climate change. |
| Databáze: | OpenAIRE |
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