TO EVALUATE THE ABILITY OF THE AGRICULTURAL PLAINS ZONATION MAHIDASHT USING GIS

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1 TO EVALUATE THE ABILITY OF THE AGRICULTURAL PLAINS ZONATION MAHIDASHT USING GIS MAHİDAŞT KÖYÜNÜN TARIMINDA VERİMLİ ALAN ORTAYA KOYMADA CAMDAN YARARLANMA İMKÂNLARININ DEĞERLENDİRİLMESİ ОЦЕНИТЬ СПОСОБНОСТЬ СЕЛЬСКОХОЗЯЙСТВЕННОГО ЗОНИРОВАНИЯ РАВНИН МАХИДАШТ ИСПОЛЬЗОВАНИЕ СТЕКЛА Mansor PARVİN * - Dr. Mohammad Reza SERVATİ ** Parviz KARDAVANİ *** Özet Mahidaşt Havzasının arazi yapıyla ilgili jeomorfolojik araştırmalar buraların farklı değişkenliklere sahip yer olduğunu ortaya çıkardı. Bu durum bölgedeki çelişkili elementlerin yansımalarıyla ilgiliydi. Bölgenin tektonik (yer hareketleri) faaliyetlerinin sonucu arazinin aşınma elementlerinin yansımasının etkisinden kaynaklanmaktadır. Bu araştırmada Kermenşah ilçesinde bulunan Mahidaşt düzlüğünün köy kullanımının potansiyel ölçüsü değerlendiriliyor. Değerlendirmek için arazisinin toprak bilimi, jeoloji, jeomorfoloji, yükseklik ve toprağın eğimi değişkenlerinden yararlanılmıştır. Köy kullanımının değerlendirilmesi için düşük kalite 5, değişkenlerin her biri 4, orta kalite 3, çok iyi kalite 1 puan bile tayin ediliyor ki bunlar harita üzerinde elde edilen puanlarla yazılıyor. Böylece etkinlik topraklar ve verimli alanlar tespit ediliyor. Anahtar Kelimeler: köy kullanımı potansiyeli, verimli alanlar, Mahidaşt, GIS * Department of Geography, PH.D Student Science and Research Branch, Islamic Azad University, Tehran / IRAN ** Associate Professor of Shahid Beheshti University of Tehran / IRAN *** Associate Professor of Tehran University / IRAN 172

2 Abstract Mahidasht basin geomorphologic study indicates that the transformation is different. In this case, the effects of various elements in the region. Most of today's major result of tectonic activity and erosion of the area. In this research area to assess the potential size of Kermanshah Plain Mahidasht in agriculture and its role has been crop. Member to determine the zoning of agricultural plains Mahidasht weight or score is used. To do this, ranging from soil science, geology, Geomorphology, and the height and slope of the land is used. Each of the variables in five factors, the range of its scores with the ability to very low for agricultural rated 5, features a low score of 4, feature an average score of three, good quality and feature high up in a considered and overlapping layers according to the scores obtained in the GIS map interface is obtained from crop fields. Key Words: Zonation, Agricultural potential, Mahidasht, GIS Introduction Any mistake in the operation will cause the loss of this precious resource. The exploitation of the soil should be such that in addition to achieve maximum production, these precious resources for future use injury. Possible use of land in the conservation of individual resources in an ecosystem and the ecosystem is stable condition. On the other hand the concept of giving value to a land unit is applied. Unit considered. Usually the soil through the mountains to the valleys and flood plains are transferred. Lime in the soil and become a rock or pebbles to fine particles or sediment in and around there, depending on the material of this soil is that Fans of rock they have there. The slope of the land, the soil is usually 5-2 percent, but may also be found on slopes steeper or gentler. Shallow soils and alluvial soils are coarse and the young are called debris. Outstanding examples of these studies, the use of homogeneous units of mutual funds by combining the features and capabilities of each area of land units on the land and its resources. Geomorphologic units in the basins of the watershed zones (Ahmad 1358; Ghavami, 1369; Nahtani, 1376) to determine facilities in many application areas can be found. They show a consistent but not fully generalize to other areas. So try to be the results of the model with the existing realities adjusted and compared to be in this research, several could be named as such work is by Shahbazi Kia et al 1384)) in the sub-basins Aras River and conducted other research in the same basin as has been done Taleghan (Bayat and others 1385). Geographical study area The study area 25 km south of Kermanshah and in the scope of political - administrative city located in Kermanshah, The total watershed area watershed area of 1438 square kilometers which is equivalent to 839 kilometers Mahidasht area is devoted to Van, and southwest to the northwest and southeast surrounding it (Figure 1). 173

3 Figure 1: Local political watershed Mahidasht Methods Several factors determine your ability to crop cultivation and the land are involved. At first glance, the factors that have affected crops in the plains Mahidasht the member variables, including soil science, geology, groundwater quality and water table level and the height and slope of the land they have. These data are of this research. For the various factors affecting your crops and affect them in different parts of the plain, each operating according to the scope of the five categories with scores of potential too low for agricultural rated 5, features a low score of 4, feature an average score of 3 and capability Good points 2 and Al has been rated one of the research work of this classification technique is included. Faults and the peak height were used (Figure 2). The digital elevation model map of the slope map was produced (Figure 3).Landsite satellite images of the 2002 convention and the extract was used. This map was obtained for the region (Figure 4).Border units in the survey of all watersheds, cell size 90 * 90 on the digital elevation and data on WGS1984. Zone38N respectively. Data in this part of the library obtained by addition For analysis of statistical data in climate and weather stations hydrocarbons and has been used for hydrological river of death. In the meantime, for observation and measurements of the work field is widespread. Instruments of physical research, topographic maps, geology, soil science, aerial photography and satellite imagery ETM + and IRS, which have formed the tools nonphysical computer software, including the Exell, Ilwis, ArcGIS, Arc view, Er mapper are included. 174

3 percent of irrigated pasture land 2-21 660 hectares of forest land, or 02 / 8% 3-31 902 hectares of irrigated agriculture, or 82/11 percent 4-508

4 Figure 3: Tilt Figure 2: Elevation Model Figure 4: Geology Conclusions and discussion Mahidasht lands in the watershed are as follows: 1-45,968 hectares or 17.3 percent of irrigated pasture land hectares of forest land, or 02 / 8% hectares of irrigated agriculture, or 82/11 percent acres of abandoned land, or 019 / 0 percent 5 - Rocks 6580 hectares or 44 / 2 percent acres of gardens and planting trees, or 027 / 0 percent 7 - River bed 337 or 012 acres / 0 percent 8 - Residential 1,512 acres, or 056 / 0 percent 9 - Other lands, 15,135 acres or 61 / 5 percent 175

Irrigated area of cultivated area, rained area garden blue garden area of dry, non-fruit trees, blue fallow fallow Total.

5 Agriculture and land use types are Table number 1 agricultural land units Mahidasht separation unit (ha, percent). Total /4 Fallow Fallow water 11 %1 Nonfruit trees 49 %6 Dry garden area 10 %1 Blue Area Garden 99 1 Dry farming area /8 Irrigated Area /5 نوع کاربريی Mahidasht Percent Irrigated area of cultivated area, rained area garden blue garden area of dry, non-fruit trees, blue fallow fallow Total. Figure 5: The land Mahidasht The analysis also provided information layer of soil science maps, elevation and slope, geology, water table levels and groundwater quality, groundwater is used for the score. overlapping maps using GIS have been placed on the special analytical functions of GIS software in different layers of maps, zoning maps can be prepared by CROP) Figure 6). The number 6: Power for Land 176

6 Conclusion As mentioned in the analysis, several factors are involved on the ground culture and a member of the growing season. In view of these factors in this study have been prairie Mahidasht MET trials include: soil science, geology, groundwater quality and land height and slope. Points 2 and 3, and good quality is considered an excellent feature. Then for each special agent map is provided. Finally, the special maps of each factor and the scores obtained with Ykdygrhmpvshany land for cultivation have been identified with different capabilities. RESOURCES 1- Ahmad, Hisham, 1375 soils and water resources of North West River Basin based on satellite images of the Zayandehrud, MSc thesis, Shahid Beheshti University, Tehran 2- Parvin, M., 1389, review Mahidasht watershed, with emphasis on Agriculture, Islamic Azad University, Tehran Science and Research, PhD thesis, Supervisor doctor wealth MR. 3 - Parvin, M., 1379, review of water resources and issues Mahidasht, Tehran University master's thesis, Supervisor Pervez Krdvany doctor. Ministry of Energy, 1378, Marnamh hydrometric stations - Bear Abad Mahidasht Ministry of Energy, 1378, and the understanding of groundwater Mahidasht, 6- Ramsht, MH, Geomorphological maps and symbols, the publisher 7- Armed Forces Geographical Organisation, 1378, Slope map 1: Kermanshah, Tehran 8- State Geological Survey, Geological Map Mahidasht 100, Geological survey of Iran, 1: Geological Map of Kermanshah 10- The geographical organizations of the Armed Forces, (1375): 1:50000 topographic maps, Mahidasht 11- The geographical organizations of the Armed Forces, 1388, the IRS aerial image Mahidasht 12- Respect, governor, 1372, Klymatvlvzhy surface waters of the river of death, Tehran University 13- Soil and Water Engineering of Kermanshah, Kermanshah Spring Shehata, SH.M.2006.Land suitability of North DeltaRegion for Sakha-93 Wheat Cultivar.Egept.J.Agric, 84 (4), Sys, C.Vanranst.E. and J Debvay land evalution.part II. Method of land evalution International traninig center for post graduate soil Scientist. Ghent university. L Gent Belgium.247p 177

Problem soils & its management. Satira Udomsri, LDD

Problem soils & its management Satira Udomsri, LDD Kingdom of Thailand Location: Southeast Asian mainland 5 o -20 o N 97 o -105 o E Area total: land: water: Capital: 513,120 sq km 510,890 sq km 2,230 sq