The average rainfall in whole growth period of winter wheat to plus or minus several times of sample variance was used to define different grades of drought.The reduction rate of production in meteorological which was...The average rainfall in whole growth period of winter wheat to plus or minus several times of sample variance was used to define different grades of drought.The reduction rate of production in meteorological which was equal to or greater than the rate of 3% was taken as standards to define wheat drought disaster years.The average reduction ratio of production in the wheat drought years in Hebei-Shandong-Henan was calculated.The frequency distribution rule of wheat in different drought disaster strength of winter wheat in Hebei-Shandong-Henan was analyzed.According to the conception and calculation method of drought disaster risk index of winter wheat,the regional distribution law of drought disaster risk index of winter wheat was analyzed.The division technical methods of winter wheat drought disaster risk zones in Hebei-Shandong-Henan under the irrigated conditions were put forward.Taking the average reduction rate of production in drought years,drought disaster risk index and precipitation of winter wheat in growth periods as indices,using the statistical analysis and overlay function of GIS,the production reduction risk of winter wheat caused by drought disaster in winter wheat zones of Hebei-Shandong-Henan was divided and evaluated.The risk evaluation of production reduction of winter wheat in different risk zones under different climate conditions was realized.The disaster prevention and mitigation measures of winter wheat drought were given.展开更多
Taking the importance of local action as a starting point, this analysis traces the treatment of participation of local and community actors through the three international frameworks for disaster risk reduction(DRR):...Taking the importance of local action as a starting point, this analysis traces the treatment of participation of local and community actors through the three international frameworks for disaster risk reduction(DRR): the Yokohama Strategy and Plan of Action for a Safer World, the Hyogo Framework for Action 2005–2015, and the Sendai Framework for Disaster Risk Reduction 2015–2030(SFDRR). The study finds a concerning shift away from valuing local community input and toward promoting technological advances. Community actors went from valued partners with their own expertise and relevant beliefs in Yokohama Strategy to ‘‘aid recipients’ ’ to whom tailored risk information must be transmitted(in SFDRR). This shift may reflect the top-down nature of negotiated international agreements or a broader shift toward investments in technological solutions. Whatever the cause, given widespread recognition of the importance of local knowledge and participation and growing recognition of the importance of intra-community differences in vulnerability, it suggests the need for reconsideration of both the discourse and the practice of involving community-level actors in DRR planning and implementation.展开更多
基金Supported by The Ministry of Finance,Meteorological Industry Spe-cific(GYHY200706030)China Meteorological Administration 2009 Budget Item(CMATG2009M32)~~
文摘The average rainfall in whole growth period of winter wheat to plus or minus several times of sample variance was used to define different grades of drought.The reduction rate of production in meteorological which was equal to or greater than the rate of 3% was taken as standards to define wheat drought disaster years.The average reduction ratio of production in the wheat drought years in Hebei-Shandong-Henan was calculated.The frequency distribution rule of wheat in different drought disaster strength of winter wheat in Hebei-Shandong-Henan was analyzed.According to the conception and calculation method of drought disaster risk index of winter wheat,the regional distribution law of drought disaster risk index of winter wheat was analyzed.The division technical methods of winter wheat drought disaster risk zones in Hebei-Shandong-Henan under the irrigated conditions were put forward.Taking the average reduction rate of production in drought years,drought disaster risk index and precipitation of winter wheat in growth periods as indices,using the statistical analysis and overlay function of GIS,the production reduction risk of winter wheat caused by drought disaster in winter wheat zones of Hebei-Shandong-Henan was divided and evaluated.The risk evaluation of production reduction of winter wheat in different risk zones under different climate conditions was realized.The disaster prevention and mitigation measures of winter wheat drought were given.
文摘Taking the importance of local action as a starting point, this analysis traces the treatment of participation of local and community actors through the three international frameworks for disaster risk reduction(DRR): the Yokohama Strategy and Plan of Action for a Safer World, the Hyogo Framework for Action 2005–2015, and the Sendai Framework for Disaster Risk Reduction 2015–2030(SFDRR). The study finds a concerning shift away from valuing local community input and toward promoting technological advances. Community actors went from valued partners with their own expertise and relevant beliefs in Yokohama Strategy to ‘‘aid recipients’ ’ to whom tailored risk information must be transmitted(in SFDRR). This shift may reflect the top-down nature of negotiated international agreements or a broader shift toward investments in technological solutions. Whatever the cause, given widespread recognition of the importance of local knowledge and participation and growing recognition of the importance of intra-community differences in vulnerability, it suggests the need for reconsideration of both the discourse and the practice of involving community-level actors in DRR planning and implementation.
