ارزیابی سلامت اگرواکوسیستم ها در مشهد

Abstract

Agroecosystem Health investigating requires a holistic approach based on its biophysical, socio-economic and human community dimensions. In order to assess Agroecosystem Health in Mahhad, this research was conducted for the period of 1982 to 2002. The assessment necessitates the selection of indicators which represent various aspects of the agroecosystem. The purpose of this study was to establish a conceptual framework that facilitates the assessment of Agroecosyetem Health. The first step was to develop a set of indicators. Data on structural, functional, and organizational indicators were collected from official documents and statistics and also questionnaires. Results showed that from 1982 to 1997 Health Index (HI) decreased and the lowest HI was in 1997 and after that trend of HI was improved. Sensitivity analysis showed that functional criteria had the highest correlation with HI. To improve the HI in short term, the most effective parameters would be functional indices such as chemicals, water use efficiency, soil degradation, machinery costs, and education indices. The index of people’s concern on environmental issues showed that 69% are concerned about the environment. This could be a good reason for the governmental and non-governmental organizations to focus on environmental health and try to improve the level of HI. The index of government’s financial support to agricultural section has decreased from 1982 to 1997.