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تنوع و غنا بانک بذر خاک پس از توقف زراعت در رویشگاه بوته زار و علفزار در مراتع نیمه استپی استان چهار محال و بختیاری | ||
نشریه علمی - پژوهشی مرتع و آبخیزداری | ||
دوره 74، شماره 3، آذر 1400، صفحه 649-661 اصل مقاله (748.68 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jrwm.2021.325395.1596 | ||
نویسندگان | ||
الهه فهیمی پور1؛ جمشید قربانی* 2؛ قدرت الله حیدری3 | ||
1دانشجوی دکتری علوم مرتع، گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری | ||
2دانشیار گروه مرتعداری، گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری | ||
3دانشیار گروه مرتعداری، گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی | ||
چکیده | ||
بانک بذر خاک نقش مهمی در احیاء پوشش گیاهی پس از توقف آشفتگی دارد. در این تحقیق تنوع و غنای بانک بذر خاک در مراتع نیمه استپی استان چهار محال و بختیاری مطالعه قرار گرفت. در دو رویشگاه علفزار و بوتهزار اراضی دارای سابقه تغییر کاربری شناسایی و چهار بازه زمانی در توقف زراعت شامل کمتر از 5، 5 تا 15، 15 تا 25 و بیشتر از 25 سال انتخاب شدند. جهت جغرافیایی در هر بازه زمانی در نظر گرفته شد. نمونهگیری خاک انجام و بانک بذر خاک به روش ظهور گیاهچه شناسایی و سپس شاخصهای تنوع و غنا محاسبه شدند. نتایج نشان داد تعداد گیاهان چندساله در بانک بذر خاک بیشتر از گیاهان یکساله بوده است. در رویشگاه علفزار با افزایش زمان توقف زراعت غنا و تنوع بانک بذر کاهش یافت اما در زمان توقف زراعت بیش از 25 سال به طور معنیداری افزایش و بیشتر از مراتع طبیعی اطراف بوده است. هر دو شاخص تنوع و غنای بانک بذر خاک در رویشگاه بوتهزار تحت تاثیر جهت جغرافیایی قرار گرفتند. در رویشگاه بوتهزار با گذشت زمان از توقف زراعت تنوع و غنای بانک بذر در جهت شمالی نوسان داشته و در دامنههای غربی با روند افزایشی اما در جهت جنوبی و شرقی روند کاهشی داشته است. در هر دو رویشگاه هر چند با کمترین زمان توقف یعنی کمتر از پنج شاخصهای تنوع و غنای بانک بذر افزایش داشتند اما برگشت پذیری شاخصها در بازه زمانی بیش از 25 سال در علفزار و بیش از 15 سال بوتهزار اتفاق افتاد. | ||
کلیدواژهها | ||
تغییر کاربری؛ اراضی رها شده؛ آشفتگی؛ احیاء؛ توالی | ||
عنوان مقاله [English] | ||
Soil seed bank diversity and richness following cessation of cultivation in shrubland and grassland in semi-steppic rangelands of Chaharmahal and Bakhtiari province | ||
نویسندگان [English] | ||
Elaheh Fahimipour1؛ Jamshid Ghorbani2؛ Ghodratollah Heydari3 | ||
1Ph.D. Student in Range Management, Department of Rangeland Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University | ||
2Department of Rangeland Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University | ||
3Sari Agricultural Sciences and Natural Resources | ||
چکیده [English] | ||
Soil seed bank has an important role in vegetation restoration following cessation of disturbance. In this study, the soil seed bank richness and diversity were investigated in semi-steppic rangeland with a history of land conversion into cultivation in Charmahal-Bakhtiari province. Land-use changes were identified in grassland and shrubland and then were classified into four groups according to the time since abandonment including < 5, 5-15, 15-25 and > 25 years. Aspect was considered in each group. Soil was sampled and seed bank was identified using seedling germination method in glasshouse. Then, seed bank richness and diversity indices were calculated. Results showed that in seed bank the number of perrenilas was greater than annuals. In both grassland and shrubland time since abandonment significantly influenced the soil seed bank richness and diversity. In grassland soil seed bank richness and diversity decreased with time of abandonment but in area with more than 25 yrs of abandonment seed abnk richness and diversity significantly increased. Aspect significantly affected both seed bank richness and diversity in shrubland. North slpoe showed fluctuation in seed bank richness and diversity during abandonment while an increase was found in west slope and a reduction in south and east slopes. In both sites the soil seed bank indices significantly increased shortly after abandonment (<5 yrs) but seed bank richness and diversity showed resilient in >25 yrs in grassland and >15 yrs in shrubland. | ||
کلیدواژهها [English] | ||
Land-use change, Abandoned land, Disturbance, Restoration, Succession | ||
مراجع | ||
[1] Aghababaee, M., Asadi, E., Tahmasbi, P., and Shirmardi, H. (2014). Investigating the similarity between above ground vegetation and soil seed bank in order to evaluate the seed bank potential in improving the semi-steppe rangelands of ChaharMahal and Bakhtiari. Rangeland, 8(1), 13–24. [2] Alemu, B. (2015). The effect of land use land cover change on land degradation in the highlands of Ethiopia. Journal of Environment and Earth Science, 5(1), 1–12. [3] Bajocco, S., Angelis, A. De, Perini, L., Ferrara, A., and Salvati, L. (2012). The impact of land use/land cover changes on land degradation dynamics: a Mediterranean case study. Environmental Management, 49(5), 980–989. [4] Bathrellos, G., Skilodimou, H., Soukis, K., and Koskeridou, E. (2018). Temporal and spatial analysis of flood occurrences in the drainage basin of Pinios River (Thessaly, Central Greece). Land, 7(3), 106. [5] Batunacun, Nendel, C., Hu, Y., and Lakes, T. (2018). Land-use change and land degradation on the Mongolian Plateau from 1975 to 2015—A case study from Xilingol, China. Land Degradation and Development, 29(6), 1595–1606. [6] Bekker, R. M., Verweij, G. L., Smith, R. E. N., Reine, R., Bakker, J. P., and Schneider, S. (1997). Soil seed banks in European grasslands: does land use affect regeneration perspectives? Journal of Applied Ecology, 34, 1293–1310. [7] Bernards, S. J., and Morris, L. R. (2017). Comparisons of Canyon grassland vegetation and seed banks along an early successional gradient. Northwest Science, 91(1), 27–40. [8] Buisson, E., Dutoit, T., Torre, F., Römermann, C., and Poschlod, P. (2006). The implications of seed rain and seed bank patterns for plant succession at the edges of abandoned fields in Mediterranean landscapes. Agriculture, Ecosystems and Environment, 115(1–4), 6–14. [9] Connnel, J. H. (1978). Diversity in tropical rain forests and coral reefs - high diversity of trees and corals is maintained only in a non-equilibrium state. Science, 199(4335), 1302–1310. [10] Forey, E., and Dutoit, T. (2012). Vegetation, soils and seed banks of limestone grasslands are still impacted by former cultivation one century after abandonment. Community Ecology,13(2), 194–202. [11] Gholami, P., Ghorbani, J., and Shokri, M. (2014). Species diversity changes of standing vegetation and soil seed bank in exclosure and grazing area (Case study: Mahoor Mamasani Rangelands, Fars Province). Iranian Journal of Range and Desert Research, 20(4), 745–755. [12] Ghorbani, J., Beheshti, Z., Shokri, M., and Tamartash, R. (2011). Soil seed bank size and composition in a rangeland and two adjacent rangelands with different history of cultivation. Journal of Range and Watershed Management,64(2), 299. [13] Grime. J. P. (1973). Competitive exclusion in herbaceous vegetation. Nature, 242, 344–347. [14] Halassy, M. (2001). Possible role of the seed bank in the restoration of open sand grassland in old fields. Community Ecology, 2(1), 101–108. [15] Horn, H. S. (1974). The ecology of secondary succession. Annual Review of Ecology and Systematics,5(1), 25–37. [16] Hu, Y., and Nacun, B. (2018). An analysis of land-use change and grassland degradation from a policy perspective in Inner Mongolia, China, 1990–2015.Sustainability ,10(11), 1-22. [17] Jacquemyn, H., Mechelen, C. Van, Brys, R., and Honnay, O. (2011). Management effects on the vegetation and soil seed bank of calcareous grasslands: An 11-year experiment. Biological Conservation, 144(1), 416–422. [18] Jiao, J., and Bai, W. (2008). Effects of soil seed bank on vegetation restoration in abandoned croplands on the hilly-gullied Loess Plateau, China. Journal of Beijing Forestry University,30(4), 65–71. [19] Kamali, N., Sadeghipour, A., and Kamali, P. (2016). Study the species richness and similarity of plant cover and soil seed bank in arid areas of Atriplex plantation (Case Study: Shahriar). Watershed Management Research (Pajouhesh & Sazandegi), 111, 53–63. [20] Kanae, S., Oki, T., Musiake, K., Yang, D., and Koike, T. (2003). Global potential soil erosion with reference to land use and climate changes. Hydrological Processes, 17(14), 2913–2928. [21] Lambin, E. F., Geist, H. J., and Lepers, E. (2003). Dynamics of land-use and land-cover change in tropical regions. Annual Review of Environment and Resources, 28(1), 205–241. [22] Levy, P. E., Friend, A. D., White, A., and Cannell, M. G. R. (2004). The influence of land use change on global-scale. Climatic Change, 67, 185–209. [23] Li, C., Xiao, B., Wang, Q., Zheng, R., and Wu, J. (2017). Responses of soil seed bank and vegetation to the increasing intensity of human disturbance in a semi-arid region of northern China. Sustainability (Switzerland), 9(1837), 1-13. [24] Luzuriaga, A. L., Escudero, A., Olano, J. M., and Loidi, J. (2005). Regenerative role of seed banks following an intense soil disturbance. Acta Oecologica, 27(1), 57–66. [25] Murphy, G. E. P., and Romanuk, T. N. (2014). A meta-analysis of declines in local species richness from human disturbances. Ecology and Evolution, 4(1), 91–103. [26] Naghipour Borj, A. A., Khaeddin, J., Bashari, H., Iravani, M., and Tahmasebi, P. (2016). The effect of fire and grazing on density, diversity and richness of soil seed bank in Semi-Steppe rangelands of Central Zagros region, Iran. Iranian Journal of Range and Desert Research, 23(3), 442–453. [27] Nikbakht, Z., Farzam, M., Khajeh Hosseini, M., and Ejtehadi, H. (2016). Effects of the canopy of perennial plants and livestock utilization rates on the density of soil seed bank in an arid steppe rangeland. Journal of Range and Watershed Managment, 69(3), 777–788. [28] Poschlod, P., Abedi, M., Bartelheimer, M., Drobnik, J., Rosbakh, S., and Saatkamp, A. (2013). Seed ecology and assembly rules in plant communities. Vegetation ecology, 2, 164-202. [29] Rasouli-Sadaghiani, M. H., Ghodrat, K., Ashrafi-Saeidlou, S., Jafari, M., and Khodaverdiloo, H. (2016). Evaluation of soil quality indicators in a deforested region of Northern Zagros (Case study: Oshnavieh-West Azerbaijan). Journal of Soil Management and Sustainable, 6(3), 83–99. [30] Saatkamp, A., Poschlod, P., and Venable, D. L. (2013). The functional role of soil seed banks in natural communities. Seeds: the ecology of regeneration in plant communities, 263–295. [31] Schott, G. W., and Hamburg, S. P. (1997). The seed rain and seed bank of an adjacent native tallgrass prairie and old field. Canadian Journal of Botany,75(1), 1–7. [32] Shirmardi, H., Heydari, G., Ghorbani, J., Tahmasebi, P., and Mehnatkesh, A. (2019). Changes of vegetation indices in arable lands with different years of abandonment in Shirmard rangelands, Chaharmahal va Bakhtiari province. Journal of Plant Ecosystem Conservation, 6(13), 177–196. [33] Trisurat, Y., Shrestha, R., and Alkemade, R. (2011). Land use, climate change and biodiversity modeling : Perspectives and Application. IGI Global. [34] Vieira, M. de S., Bonilha, C. L., Boldrini, I. I., and Overbeck, G. E. (2015). The seed bank of subtropical grasslands with contrasting land-use history in southern Brazil. Acta Botanica Brasilica, 29(4), 543–552. [35] Walker, K. J., Stevens, P. A., Stevens, D. P., Mountford, J. O., Manchester, S. J., and Pywell, R. F. (2004). The restoration and re-creation of species-rich lowland grassland on land formerly managed for intensive agriculture in the UK. Biological Conservation, 119(1), 1–18. [36] Wang, N., Jiao, J. Y., Du, H. D., Wang, D. L., Jia, Y. F., and Chen, Y. (2013). The role of local species pool, soil seed bank and seedling pool in natural vegetation restoration on abandoned slope land. Ecological Engineering,52, 28–36. [37] Yasouri, M., Sulaiman, W. N. A. B, and Saeidian F. (2012). Conversion trends of rangelands to dry farming and its effects on erosion and sediment yield in Kardeh drainage basin. Caspian Journal of Environmental Sciences,10(2), 257–272. | ||
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