the presence of yield systematic risk in agricultural sector is one of the main reasons for facing this sector with huge damages and is one of the restricting factors in developing agricultural insurance in iran. this study explores the presence of systematic yield risk and the extent and severity of yield spatial dependence for apple production in iran. to this end, the apple production region...

By J. ARTHUR HARRIS, headj Department of Botany, University of Minnesota, and collaborator, Bureau of Plant Industry, U. S. Department of Agriculture; CLARA T. HOFFMAN, field assistant, Office of Alkali and Drought-Resistant Plant InvestigationSy Bureau of Plant Industry, U. S. Department of Agriculture (1923-24); and WALTER F. HOFFMAN", assistant agricultural biochemist, Division of Agricultur...

Agro-meteorological index insurance can transfer the risks in the agricultural production, reduce the farmers' economic losses, and promote a sustainable development of agricultural production. However, traditional agricultural insurance with a single rate has the problems of the presence of adverse selection, the difficulty of determining premium rates and assessing the claims. As a new agricu...

Global warming has resulted in increasingly frequent and severe drought and/or precipitation events. Severe drought limits crop water availability and impacts agricultural productivity and socioeconomic development. To quantify drought-induced yield loss during the main crop stages in Liaoning province, China, aspects of drought episodes (magnitude, duration, and frequency) were investigated du...

Abstract. Estuaries are coastal systems particularly vulnerable to climate change. Within these systems, agriculture is one of the most potentially affected sectors. This paper proposes a risk assessment approach for helping decision-making process at local level, addressing two risks that affect agricultural areas located in estuarine margins: unavailability freshwater irrigation resulting fro...

Remotely sensed rainfall is increasingly being used to manage climate-related risk in gauge sparse regions. Applications based on such data must make maximal use of the skill of the methodology in order to avoid doing harm by providing misleading information. This is especially challenging in regions, such as Africa, which lack gauge data for validation. In this study, we show how calibrated en...

Drought events develop in both space and time and they are therefore best described through summary joint spatio-temporal characteristics, such as mean duration, mean affected area and total magnitude. This paper addresses the issue of future projections of such characteristics of drought events over France through three main research questions: (1) Are downscaled climate projections able to si...

With global climate change, rainfall is becoming more variable. Predicting the responses of species to changing rainfall levels is difficult because, for example in herbivorous species, these effects may be mediated indirectly through changes in host plant quality. Furthermore, species responses may result from a simultaneous interaction between rainfall levels and other environmental variables...