Economic evaluation of agroecosystem services of saffron in Khorasan Razavi province

Zirā̒at va Fanāvarī-i Za̒farān

Surur Khorramdel¹  Afsaneh Amin Ghafori²  Parviz Rezvani Moghaddam³ 

[1] Associate Professor, Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad;Payam Nour University, Khorasan-e-Razavi and PhD in Agroecology, Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad;Professor, Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad;

关键词: Ecosystem services;    Economic value;    Environmental externalities;    Biodiversity;    Nitrogen leakage;   

DOI  :  10.22048/jsat.2017.59190.1183

来源: DOAJ

【 摘 要 】

Monetary valuation of agroecoystem services makes them attractive for the society and policy makers should pay more attention to conservation of these services. In this study, the economic value of services as well as negative environmental externalities of saffron fields were estimated in the Khorasan Razavi province during 2015. Information was extracted from questionnaires collected from 75 fields. Using these data, economic values (such as O₂ production, food, biodiversity and tourism) together with environmental externalities (including greenhouse gas emission and N and P leakage) were computed based on international value of dollar. Based on the results of the study, the mean values of the agroecosystem services of saffron field such as O₂ production, food, biodiversity and cultural services were estimated to be 54.21×10⁶, 266.84×10⁶, 60.24×10⁶, 29.6×10⁶ and 10.58×10⁶ Rls ha^-1.y^-1, respectively. The shares of these services were up to 39, 35, 19 and 7 percent of total value, respectively. The ranges of environmental externalities such as greenhouse gas emission and N and P leakage were estimated to be -18.54×10⁶ to -8.18×10⁶ and -5.18×10⁶ to -4.07×10⁶ Rls ha^-1.y^-1. The mean value of the total agroecosystem services of saffron fields excluding externalities, were estimated to be 136.57×10⁶ Rls ha^-1 y^-1.

【 授权许可】

Unknown