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ارزیابی سلامت رویشگاهی در سه طبقه ارتفاعی مراتع شمال سبلان | ||
| تحقیقات مرتع و بیابان ایران | ||
| مقاله 2، دوره 26، شماره 1، خرداد 1398، صفحه 1-17 اصل مقاله (340.47 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrdr.2019.119322 | ||
| نویسندگان | ||
| اردوان قربانی* 1؛ اردشیر پورنعمتی2؛ نازیلا بی باک3 | ||
| 1دانشیار، گروه مرتع و آبخیزداری، دانشگاه محقق اردبیلی، اردبیل، ایران | ||
| 2دانشجوی دکترای علوم مرتع، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران | ||
| 3دانش‌آموخته کارشناسی ارشد مرتع‌داری، گروه مرتع و آبخیزداری، دانشگاه محقق اردبیلی، اردبیل، ایران | ||
| چکیده | ||
| هدف این تحقیق ارزیابی سلامت مراتع شمالی سبلان در سه طبقه ارتفاعی (کمتر از 1500، 1500 تا 2100 و 2100 تا 2700 متر) که نماینده مراتع روستایی، روستایی–عشایری و عشایری می‌باشند، با استفاده از روش آنالیز عملکرد چشم‌انداز (LFA) در استان اردبیل بود. برای نمونه‌برداری 3 ترانسکت 50 متری در هر طبقه ارتفاعی با توجه به یکنواختی عرصه و پراکندگی لکه‌ها مستقر شد. با استفاده از روش LFA سه ویژگی پایداری، نفوذپذیری و چرخه عناصر غذایی با استفاده از 11 شاخص سطح خاک تعیین شد. تجزیه‌وتحلیل آماری داده‌ها با استفاده از روش LFA در محیط نرم‌افزار Excel با استفاده از دستورالعمل تانگوی و هیندلی انجام شد. شاخص پایداری خاک در طبقه ارتفاعی سوم برای فرم‌های رویشی بیشتر از طبقه ارتفاعی اول و دوم بود و اختلاف معنی‌دار داشته (05/0<P)، ولی بین فرم‌های رویشی طبقه ارتفاعی اول و دوم اختلاف معنی‌داری مشاهده نشد. مقایسه شاخص‌های نفوذپذیری و چرخه عناصر غذایی هر سه طبقه ارتفاعی در فرم‌های رویشی اختلاف معنی‌داری را نشان داد (05/0>P). شاخص پایداری در طبقه ارتفاعی سوم (35/72) و دوم (75/48)، شاخص نفوذپذیری در طبقه ارتفاعی سوم (31/73) و اول (99/15) و شاخص چرخه عناصر غذایی در طبقه ارتفاعی سوم (75/78) و اول (12/10) به‌ترتیب دارای بیشترین و کمترین مقدار بودند. در کل وضعیت طبقه ارتفاعی سوم از نظر سلامت مرتع بهتر از دو طبقه دیگر بود. به‌طوری‌که با بررسی ویژگی‌های عملکردی لکه‌های اکولوژیک مرتع می‌توان معرف‌های گیاهی مؤثر در سلامت مراتع را شناسایی کرد و اقدامات مدیریتی مناسبی را برای حفظ آن انجام داد. | ||
| کلیدواژه‌ها | ||
| استان اردبیل؛ تحلیل عملکرد چشم‌انداز؛ (LFA)؛ لکه‌های اکولوژیک؛ مدیریت چرا | ||
| عنوان مقاله [English] | ||
| Evaluation of habitat health in three elevation classes of north Sabalan rangelands | ||
| نویسندگان [English] | ||
| Ardavan Ghorbani1؛ Ardashir Pournemati2؛ Nazila Bibak3 | ||
| 1Associate Professor, University of Mohaghegh Ardabili, Ardabil, Iran Ardabil, Iran | ||
| 2Ph.D. Student in Range Management, Gorgan University of Agricultural Sciences and Natural Resources, Iran | ||
| 3Former M.Sc. in Range Management, University of Mohaghegh Ardabili, Ardabil, Iran | ||
| چکیده [English] | ||
| The aim of this study was to assess the rangeland health of North Sabalan in three-elevation classes (less than 1500, 1500 to 2100, and 2100 to 2700 meters), which were the representative of rural, rural-nomad, and nomad rangelands, using the landscape function analysis (LFA) in Ardabil province. For sampling, three 50-meter transects were established in each elevation class according to the uniformity of the habitat and distribution of patches. Using the LFA framework, three characteristics including stability, infiltration and nutrient cycling of soil surface were determined using 11 indicators. Statistical analysis of data was conducted using the LFA method and instructions of Tongway and Hindley in Excel software. The soil stability index for vegetation life forms in the elevation class of 2100 to 2700 m was more than that of the other two elevation classes, with significant difference (P>0.05); however, there was no significant difference between the first and the second class .Comparison of the infiltration and nutrient cycling indices for vegetation life forms in the elevation class of 2100 to 2700 m was also more than those of the other two elevation classes with significant differences (P<0.05). The stability index in the third elevation class (72.35) and in the second class (48.75), the infiltration index in the third elevation class (73.31) and in the first elevation class (15.99), and the nutrient cycling index in the third elevation class (78.75) and in the first elevation class (10.12) had the highest and least values, respectively. Overall, the health condition of the third elevation class was better than the other two classes. By examining the functional characteristics of ecological patches, we can identify the vegetation indicators affecting rangeland health, and then conduct proper management to protect that ecosystem. | ||
| کلیدواژه‌ها [English] | ||
| Ardabil Province, ecological patches, grazing management, landscape function analysis (LFA) | ||
| مراجع | ||
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- Abedi, M., Arzani, H., Shahryari, E. and Tongway, D., 2006. Assessment of patches structure and function in arid and semi-arid Rangeland. Journal of Environmental Studies, 32(4): 117-126. - Adel, M. A., Mahmoud, I., Mohd Hasmadi, M. S., Alias, A. and Azani, M., 2014. Reviews of landscape function analysis (LFA) applications in rangeland ecosystems and its links with vegetation indices (VI’s), World Applied Sciences Journal, 32(5): 986-991. - Ahmadi, Z., Heshmati, Gh. and Abedi, M., 2008. Investigation on the effects of restoration practices on rangeland health indicators at Jahan-Nema Park of Golestan province, Iran. Final Report, 75p. - Akbarzadeh, M., 2005. Investigation of vegetation changes, characteristics and soil seed bank in grazed and ungrazed steppe and semi steppe rangelands. Ph.D. Thesis, University of Tehran, 153p. - Arzani, H., Abedi, M., Shahriari, A. and Ghorbani, M., 2006. Evaluation of soil surface parameters and performance characteristics of pasture grazing and tillage intensity (A case study of urease Taleghan. Iranian Journal of Range and Desert Research, 14(1): 68-79. - Bartley, R., Roth, C. H., Ludwig, J., Mc Jannet, D., Liedloff, A., Corfield, J., Hawdon, A. and Abbott. B., 2006. Runoff and erosion from Australia's tropical semi-arid rangelands: influence of ground cover for differing space and time scales. Hydrological Processes, 20: 3317-3333. - Bestelmeyer, B. T., Ward, J. P., Herrick, J. E. and Tugel, A. J., 2006. Fragmentation effects on soil aggregate stability in patchy arid grassland. Rangeland Ecology Management, 59: 406 - 415. - Bibak, N., 2014. Evaluation performance of the various management using Landscape Function Analysis (LFA) in rangeland of north Sabalan in Ardabil. M.Sc. Thesis, University of Mohaghegh Ardabili, Ardabil, Iran. 74p. - Ghorbani, A., Bibak, N., Amirkhani, M., Rahimi, Z., Akbarloo, M., Sefidi, K., Baderzadeh, M., Tymorzadeh, A. and Pournemati, A., 2015. Condition (health) assessment of low altitude habitat of north Sabalan. Journal of Plant Ecosystem Conservation, 6(1): 43-56. - Ghorbani A., Ahmadalei, V., Asghari A., 2014. Study the effect of distance from village on plant composition and diversity in rangeland of southeastern Sabalan, Iranian Journal of Rangeland, 8(2): 178-191. - Herrick, J. E., Brown, J. R., Jugel, A. J., Shaver, L. and Havsted, K. M., 2002. Application of soil quality for monitoring and management.10p. - Heshmati, Gh. A., Karimian, A. A., Karimi, P. and Amirkhani, M., 2006. Qualitative assessment of hilly range ecosystems potential at Inche-boron area of Golestan province, Iran. Journal of Agriculture and Natural Resource Science, 14(1): 174-182. - Heshmati, Gh., Amirkhani, M., Heidari, Gh. and Hosseini. S.A., 2007. Quantitative analysis of range ecosystem potential, Gomishan, Golestan province. Iranian Journal of Rangeland, 1(4): 103-115. - Holechek. J. L., Pieper, R. D. and Herbel, C. H., 2001. Range management, Principles and practices. Hall, Inc, New jersey, Pp: 27-35. - Karamati Jabehdar, S., Mirzaei Aghjeh Gheshlagh, F., Ghorbani, A., Fathi Achachlouei, B. and Navidshad, B., 2014. Study the effect of altitude and slope characteristics on minerals content in rangelands soil, plants and sheep milk (Case study: South and southeast Sabalan in Ardabil province). Iranian Journal of Rangeland, 7(4): 330-343. - Kargr, M., Jafarian, Z. and Ehsani, M., 2016. The Effect of Grazing on Soil Surface Indicators Using Landscape Function Analysis (LFA) method (Case study: Dona rangelands, Siah Bisheh Watershed). Journal of Range and Watershed Management, 69(3): 691-698. - Kavianpoor, A. H., Heshmati, Gh. A. and Hosseini, Sh., 2015. Investigation of changes in rangeland soil characteristics and its functional attributes affected by different grazing intensities (case study: mountainous rangelands of Nesho, Mazandaran province). Journal of Water and Soil, 25(4): 157-168. - Keykha, E. and Niknahad Gharmakher, H., 2017. Investigation on the validity of soil surface indicators assessment using LFA method (Case study: western rangelands of Gonbade Kavous city). Iranian Journal of Range and Desert Research, 24(3): 621-630. https://doi.org/10.22092/ijrdr.2017.113369 - Li, X. J., Li, X. R., Song, W. M., Gao, Y. P., Zheng, J. G. and Jia, R. L., 2007. Effects of crust and shrub patches on runoff, sedimentation, and related nutrient (C, N) redistribution in the decertified steppe zone of the Tengger Desert, Northern China. Geomorphology, 96: 221–232. - Maestre, F. T. and Escudero, A., 2009. Is the patch size distribution of vegetation a suitable indicator of desertification processes, Ecology, 90(7): 1729–1735. - Mofidi Chelan, M. and Heshmati, G. H. A., 2016. Effect of different ecological patches on soil surface quality indices (case study: Sofi Chai catchment, Maragheh county), Natural Ecosystems of Iran, 7(3): 115-122. - Mohebbi, S., Dianati Tilaki, Gh. A. and Abedi, M., 2016. Applying landscape function analysis method in order to assess the ecological function of plant patches in rangeland management treatments (Pilot: Kojour Noshahr rangelands). Journal of Range and Watershed Management, 69(1): 187-199. - Pourali Kotyani, A. 2014. Range condition assessment using ground-based and remotely sensedmethods - Pournemati, A., Ghorbani, A., Sharifi, J., Mirzaei Aghche Gheshlagh, F., Amirkhani, M. and Ghodarzi, M., 2017. Study the effects of elevation, slope and aspect on life form forage production in Sabalan rangelands in Ardabil province. Iranian Journal of Range and Desert Research, 24(1): 91-100. - Read, Z. J., King, H. P., Tongway, D. J., Ogilvy, S., R. S. B. Greene, R. S. B. and Hand, G., 2016. Landscape function analysis to assess soil processes on farms following ecological restoration and changes in grazing management. European Journal of Soil Science, https://doi.org/10.1111/ejss.12352. - Tongway, D. J. and Ludwig, J., 2002. Desertification, reversing, in Ratten Lal. Marcel Dakker, New York. 343-345p. - Tongway, D. J. and Hindley, N. L., 2004. Landscape function analysis: a system for monitoring rangeland. African Journal of Range and Forage Science, 21(2): 109-113. - Tongway, D. J. and Hindly, N. L., 1995. Assessment of soil condition of tropical grasslands manual. CSRIO, Division of Wildlife and Ecology. Canberra. Australia, 72p. - Whitford, W. G., 2002. Ecology of desert systems. Academic Press, New York, 330p. - Yari, R., Tavili, A. and Zare, S., 2012. Investigation on soil surface indicators and rangeland functional attributes by Landscape Function Analysis (LFA), Case study: Sarchah Amari Birjand. Iranian Journal of Range and Desert Research, 18(4): 624-636. - Zucca, C., Pulido- Fernandez, M., Fava, F., Dessena, L. and Mulas, M., 2013. Effects of restoration actions on soil and landscape functions: Atriplex nummularia L. plantations in Ouled Dlim (Central Morocco). Soil and Tillage Research, 133: 101 -110.
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