Role of Soil and Topographic Features in Distribution of Plant Species (Case study: Sanib Taftan Watershed)

Authors
M. Ebrahimi 1
A. Masoodipour 2
M. Rigi 2
1 Assistant Professor, Department of Range and Watershed Management, University of Zabol, Zabol, Iran
2 Former M.Sc. Student of Range Management, Department of Range and Watershed Management, University of Zabol, Zabol, Iran
Abstract
The study was carried out to investigate the effective soil and topographic features on distribution of plant types in Sanib Taftan Watershed in Sistan-and-Balouchestan Province, Iran. Initially, land units map was specified by combining three maps of slope, aspect and altitude. Five types including Artemisia santolina- Hammada salicornica, Artemisia sieberi- Amygdalus lycioides, Artemisia lehmaniana- Amygdalu slycioides, Amygdalus lycioides-Amygdalus scoparia, Pistacia atlantica- Amygdalus scoparia were identified. Sampling of vegetation in the land units was conducted using linear transect method, so that presence and absence of the plant species, canopy cover, stone and pebbles, litter and bare soil percent were catculated in 50 or 100 m transects (2-4 m2 plots) in a randomized systematic method. Soil sampling was done with respect to the width of each land unit (from 0-30 cm depth). Principal component analysis (PCA) was conducted on vegetation and plant type-environmental variables matrix. The most important and effective factors in vegetation distribution of the studied area were slope, altitude, soil texture (silt and sand) and total nitrogen and the factors related to topography (slope and altitude) were more effective than those related to the soil.
Keywords
Altitude
Plant community
Soil characteristics
Azarnivand, H. Niko, Sh. Ahmadi, H. Jafari, M. and Mashhadi, N. Investigation of environmental factors effecting in distribution of plant communities in Damghan (case study: Damghan. Semnan province). Nat. Resour. J., 2007; 60: 323-341. (In Persian)
Black, C.A, Evans, D.D, White, J.L, Ensminger, L.E. and Clark, F.E. Methods of Soil Analysis, American Society of. Agronomy, Madison, Wisconsin. 1965; 770 P.
Bray, R.H. and Kurtz, L.T. Determination of total, organic and available forms of phosphorus in soils. Soil Sci., 1954; 39-45.
Bremner, J.M. Nitrogen total, Methods of Soil Analysis, Bartels, J.M. (Ed.), Soil Science Society of America, Madison, Wisconsin. 1996; 1085-1122. 
Coulloudon, B., Eshelman, K., Gianola, J., Habich, N., Hughes, L., Johnson, C., Pellant, M., Podborny, P., Rasmussen, A., Robles, B., Shaver, P., Spehar, J. and Willoughby, J. Sampling vegetation attributes. Technical Reference, Department of Agriculture, Natural Resource Conservation Service, Grazing Land Technology Institute, Denver, Colorado. 1999; 171 P.
Davies, K.W, Bates, J.D. and Miller, R.F. Environmental and vegetation relationships of the Artemisia tridentate spp. Wyomingensis alliance. J. Arid Environ., 2007; 70: 478-494.
Day, P.R. Particle fractionation and particle-size analysis, Methods of Soil Analysis, Agronomy, Page, A.L, Miller, R.H. and Keeney, D.R (Eds.). American Society of Agronomy, Madison, Wisconsin. 1982; 545-567.
Ebrahimi-Kebria, K. Investigation of topographic factors effects and grazing on plant cover percentage and diversity in Sefid-Ab of Haraz basin rangeland. MSc thesis of  Mazandaran University. 2002; 90 P. (In Perasian)
Enright, N.J. Miller, B.P. and Akhter, R. Desert vegetation and vegetation-environment relationships in Kirthar National Park, Sindh, Pakistan. J. Arid Environ., 2005; 61: 397-418.
Fahimipour, A. Zare Chahouki, M.A. and Tavili, A. Investigation of plant diversity changes with environmental factors in middle rangelands of Taleghan, Iranian Journal of Watershed Management Research (Pajouhesh and Sazandegi), 2010; 87: 32-41. (In Persian)
Fatahi, B. Aghabeygi-Amin, S. Ildermi, A.R. Maleki, M. Hasani, J. and Sabetpour, T. Investigation of some environmental factors effective on Astragalus gossypinusin Zagros mountainous rangelands (case study: Hamadan province), 2009; 3(2): 203-216. (In Persian)
Fu, B.J. Liu, S.L. Ma, K.M. and Zhu, Y.G. Relationships between soil characteristic, topography and plant diversity in a heterogeneous broad-leaved forest near Beijing China. Plant Soil, 2003; 261: 47-54.
Ghahraman, A. Flora of Iranica, Forest and Rangeland Organization press. Tehran, Iran, 2000; 215-260. (In Persian)
Gurgin-Karaji, M. Karami, P. Shokri, M. and Safaian, N. Investigation relationship between some important species and physical and chemical soil factors (case study: Farhadabad sub catchment in Kurdistan; Saral rangelands), Iran. J. Watershed Manage. Res., (Pajouhesh and Sazandegi), 2006; 73: 126-132. (In Persian)
Heydari, M. Mahdavi, A. and Atar-Roushan, S. Identification of relationship between some physiographic attributes and physico chemical soil properties and ecological groups in Melehgavan protected area, Ilam, Iran. J. Forest and Poplar Res., 2009; 17 (1): 149-160. (In Persian)
Jackson, D.A. Stopping rules in principal component analysis–A comparison of huristic and statistical approaches. J. Ecol., 1993; 74: 2204-2214.
Jafari, M. Biniaz, M. Janfaza, E. Nematolahi, M.J. and Karimpour Reyhan, M. Relationship between soil characteristics and vegetation types in Damghan, Desert. 2013; 17: 129-135. (In Persian)
Jafari, M. Zare Chahouki, M.A. Tavili, A. and Kohandel, A. Soil vegetation relationship in rangelands of Qom province. Journal of Watershed Management Research (Pajouhesh and Sazandegi). 2006; 73: 110-116. (In Persian)
Jafari, M. Zare Chahouki, M.A. Tavili, A. and Azarnivand, H. Soil- Vegetation relationship in hoz-esoltan region of Qom province, Iran, J. Nutr., 2003; 2(6): 329-334.
Jafari-Haghighi, M. The methods of soil decomposition-sampling and important physical and chemical decompositions by focus on theoretical and practical principles. Neday-e-Zoha, Iran. 2003; 236 P. (In Persian)
Jongman, R.H.G. TerBreak, C.J.F. and Van Tongeren, O.F.R. Data Analysis in community and landscape ecology. Center Fire Agricultural Publishing and Documentation, Wageningen. 1987; 342 P.
Knudsen, D, Peterson, G.A. and Pratt, P.  Lithium, sodium and potassium, Methods of Soil Analysis, Page, A.L. (Ed.).  American Society of Agronomy, Soil Science Society of America, Madison, Wisconsin, 1982; 225-246.
Makhdoom, V. The land logistics model. University of Tehran press, Iran. 2002; 289. (In Persian)
Masoodipour, A. Ebrahimi, M. and Rigi, M. Effect of Edaphic, Geologic and Topographic Characteristics in the Distribution of  Plant Species in the Sanib Taftan Watershed. Range Management M.Sc. Thesis. University of Zabol, 2014; 93P. (In Persian)
McCune, B. and Mefford, M.J. PC-ORD. Multivariate Analysis of Ecological Data Version 3.0. MjM Software Design. Gleneden Beach, OR, 1997; 125 P.
Mesdaghi, M. Range management in Iran. Astan Ghods Razavi press, Mashhad, Iran, 2003; 252 P. (In Persian)
Metaji, A. and Zahedi-Amiri, G.H. The relationship between plant ecologic groups and edaphic conditions of the habitat (Case study: Khiroudkenar Jungle of Noshahr). Nat. Resour. J. Iran, 2006; 59(4): 453-863. (In Persian)
Moradi, H. and Ahmadipour, S. Investigation the role of morphology and soil on plant vegetation using GIS in Vas sub watershed basin. Geogr. Res. J., 2006; 58: 17-32.
Moradi, M. Ebrahimi, M. and Armin, M. The role of edaphic and topographic factors in plant species distribution of geological formations in Kakan watersheds of Kohgelouye-and-Boyerahmad province. Range Management M.Sc. Thesis. University of Zabol, 2014; 116 P. (In Persian)
Nelson, D.W. and Sommers, L.E. Total carbon, organic carbon, and organic matter, Methods of soil analysis. 961-1010 (Bartels, J.M. (Ed.), Soil Science Society of America, Madison, Wisconsin, 1996; 961-1010.
Noy-Meir I. Multivariate analysis of the semi- arid vegetation of southern Australia. II. Vegetation catenae and environmental gradients. Aust. J. Bot., 1973; 22: 40-115.
Rezaei, S.A. and Arzani, H. The use of soil surface attributes in rangelands capability assessment. Iran. J. Range and Desert Res., 2007; 14 (2): 232-248. (In Persian)
Rezaei, S.A. The use of a soil quality index in site capability assessment for extensive grazing. Ph.D Dissertation, University of Western Australia, Perth, Australia, 2003; 93 P.
Rhoades, J.D. Salinity: Electrical conductivity and total dissolved solids, Methods of Soil Analysis, Page, A. L. (Ed.), American Society of Agronomy, Madison, Wisconsin, 1996; 417-435.
Saberian, G. The investigation of correlation degree between plant cover with topographic in Sephid Dasht- Margsar. M.Sc. Thesis in Range Management of Mazandaran University. 2002; 113 P. (In Persian)
Shokrollahi, S.H. Moradi, H.R. and Dianati Tilaki, Gh.A. Effects of soil properties and physiographic factors on vegetation cover (Case study: Polur Summer Rangelands).  Iran. J. Range and Desert Res., 2012; 19 (4): 655-668. (In Persian)
Sperry, J.S. and Hacke, U.G. Desert shrub water relations with respect to soil characteristics and plant functional type. Funct. Ecol., 2002; 16: 367-378.
Thomas, G.W. Soil pH and soil acidity, Methods of soil analysis, Bartels, J.M. (Ed.), Soil Science Society of America, Madison, Wisconsin, 1996; 475-490.
Xian-Li, X. and Ke-Ming, M. Relationships between vegetation and topography in a dry warm river valley SW Chin. Jour. Catena, 2008; 75: 138-145.
Yibing, Q. Impact of habitat heterogeneity on plant community pattern in Gurbantunggut Desert. J. Geogr. Sci., 2008; 14 (4): 447-455.
Zare, S. Jafari, M. Tavili, A. Abbasi, H.R. and Rostampour, M. Relationship Between Environmental Factors and Plant Distribution in Arid and Semiarid Area (Case Study: Shahriyar Rangelands, Iran). American-Eurasian J. Agric. and Environ. Sci., 2011; 10 (1): 97-105.
Zare Chahouki, M.A, Jafari, M. and Azarnivand, H. Relationships between species diversity and environmental factors of Poshtkouh rangelands in Yazd. Iran. J. Watershed Manage. Res., (Pajouhesh and Sazandegi). 2007; 21(1): 192-199. (In Persian)
Zhang, J.T. and Dong, Y. Factors affecting species diversity of plant communities and the restoration  process in the loess area of China. Ecol. Eng., 2010; 36: 345-350.
Zhou, P.L., Uukkanen, O. Tokola, T. and Nieminen,J. Vegtation dynamics and forest landscape restoration in the Upper min River Watershed, Sichuan China, Restor. Ecol., 2008; 16:345-355.