Evaluation of environmental capacities for agricultural development (Case study: Choghakhor rural district, Borujen Township)



Remedy of resources depletion as one of the most nowadays crisis, requires the use of scientific methods and making appropriate policies and sustainable development.
Environmental planning for sustainable development requires considering and assessing of environmental capabilities and comprehensive use of land resources in a rational framework. Planning for optimum use of current lands will led us to correct use of lands and use according to their abilities, in the framework of this planning , lands would be evaluated and coordination of them to the uses will be measured according to their ecological abilities. In this study, evolution is made multilateral with looking at all aspects of environmental situation of a region as a planning unit.
This arises from the strong interrelationship between the agricultural development and environmental resources.In this study, evolution is made multilateral with looking at all aspects of environmental situation of a region as a planning unit.
This arises from the strong interrelationship between the agricultural development and environmental resources.
The present study attempts to assess the environmental capabilities of a rural region (named Choghakhor located at the Chaharmahal & Bakhtiari province in south-west Iran) towards the agricultural development assuming that the region is environmentally capable for comprehensive and sustainable development. In the studied area , destruction of resources , changing land use and reducing farming lands, destruction and erosion of soil , lack of economical bases, unemployment and lack of collection of capital , indicate the resources which there is not correct use of them , and the need for evaluating environmental capacity for developing agriculture and rural stability.
The approach in this study is descriptive- analytic and for gathering information, different documentary – field methods like observing, interview and using current information, books, magazine and maps are mixed. For analyzing data and maps we used different programs and for evaluating environmental ability we used ecological models.
In this study, two concepts of “environmental abilities “ and “evaluation “ are in the center. By environmental abilities we mean a set of environmental data which are effective in economical usage of human. Evaluation of environment abilities is determining possible usage if land for different purposes.
For evaluating land ability and calculating coordination of it for different uses, there are different methods. In this study to survey the situation and ecological ability we used the method of systematic analyze and ecological model of Makhdoom. The steps of work are gotten from steps of planning and preparation of land which was presented in 1993 by Dalal, Cliton and Dent in England. For preparing required maps, we used Topographic 1.25000 maps of Avargan, Zeverdegan, Beldaji, Sabz Koh, and fir analyzing data we used Corel and Arc view. In addition, vast field studies were done at the time of collecting information.
The environmental capacities and ecological resources of the region were then identified and relevant data provided as layers based on the land use planning methods and a systemic analysis approach. Following that, the homogenous units and their land-use priorities were distinguished based on the ecological criteria and capacities. For determining preferences, a principal measure is current situation of land. This is done in different ways. Here, we used comparison method which is done in both quality and quantity for Iran.
Research works of Noori ( 1995) by the title of “ determining regional differences and evaluating potential of agriculture of Esfahan “ , Evans et al (2000) by the title of “ evaluating of environmental abilities for developing agriculture in Hanford , Kauzeni et al ( 1993) by the title of “ evaluating recourses and land use planning in Tanzania , Fallah Miri and coworkers ( 2008) by the title of ranking Ecologic power of agriculture of Kesililan by GIS , Babaii and Onagh ( 2006) by the title of evaluating development power and preparation of auriferous region of Poshtkooh and Sahrifi & Makhdoom ( 2004) preparation of lands of auriferous region of Kabar – Kohk of Qom , are listed in researches of this field.
As the results show, the most lands of the study area assessed uncap able for grade 1 agricultural practice, but there are appropriate for rangeland and grade 2 and 4 agricultural activities. In conclusion, although the land resources of the study area are not suitable for long lasting agriculture, but dry farming and irrigated gardening are strongly recommended for the region. Moreover correct use is done in few cases, and converting lands to waterless cultivation which is done is many places, has caused soil erosion. Also, every region has lots of environmental resources like trees which are not used yet.