| تعداد نشریات | 285 |
| تعداد نشریات سازمان | 83 |
| تعداد شمارهها | 3,139 |
| تعداد مقالات | 34,918 |
| تعداد مشاهده مقاله | 50,383,604 |
| تعداد دریافت فایل اصل مقاله | 90,276,967 |
مقایسه غنای گونه ای و تنوع عملکرد FAD2 در جهت برآورد بایومس گیاهی در منطقه زاگرس مرکزی | ||
| تحقیقات مرتع و بیابان ایران | ||
| مقاله 2، دوره 24، شماره 1، خرداد 1396، صفحه 1-15 اصل مقاله (572.12 K) | ||
| شناسه دیجیتال (DOI): 10.22092/ijrdr.2017.109845 | ||
| نویسندگان | ||
| علی گهرنژاد* 1؛ پژمان طهماسبی2؛ اسماعیل اسدی2؛ جواد معتمدی3 | ||
| 1دانشجوی دکتری مرتعداری، دانشکده منابع طبیعی، دانشگاه شهرکرد | ||
| 2دانشیار، گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه شهرکرد، ایران | ||
| 3استادیار، دانشکده منابع طبیعی دانشگاه ارومیه، ایران | ||
| چکیده | ||
| در تنوع عملکرد برخلاف تنوع گونهای که تنها در ارتباط با فراوانی گونهای میباشد، به جنبههای مختلف تنوع عملکرد در ترکیبات زیستی و نقش جمعیتها در جامعه توجه میگردد. تنوع عملکرد بهطور مستقیمی در ارتباط با خدمات اکوسیستم میباشد که بایومسگیاهی بسیاری از خدمات اکوسیستمی از قبیل تامین غذا، حفاظت، و گرده افشانی را شامل میگردد. در این مطالعه اقدام به آزمون چندین فرض میگردد(الف) آزمون وجود رابطه نزدیک بین غنای گونه ای با بایومس گیاهی (ب) آزمون وجود رابطه نزدیک بین تنوع عملکرد FAD2 با بایومس گیاهی (ج) توجیه درصد قایل توجهی از تغییرات بایومس گیاهی بوسیله پارامترهای محیطی و ویژگیهای گیاهی. نتایج مطالعه نشان داد که غنای گونه ای جهت پیش بینی بایومس گیاهی با مقدار ضریب همبستگی برابر03/0 بهعنوان شاخصی مناسب بهحساب نمیآید. مقادیرضریب همبستگی شاخص تنوع عملکرد FAD2 با بایومس گیاهی واحدهای نمونه برداری در حدود 4/0 گردید که بهسبب توجیه درصد قابل توجهی از تغییرات بایومس گیاهی میتواند شاخصی نسبتا مناسب در برآورد بایومس گیاهی بهحساب آید. در نهایت، بهمنظور آزمون فرضیه سوم اقدام به ایجاد مدلهای فرضی بر مبنای پارامترهای محیطی و ویژگیهای گیاهی و شاخص تنوع عملکرد FAD2 گردید و مشاهده شد که تلفیق فاکتورهای غیرزنده، ویژگیهای گیاهی و تنوع عملکردی (FAD2) که شامل پارامترهای بارش، طول برگ، ارتفاع گیاه و شاخص FAD2 میگردد، حدود 75 درصد تغییرات تنوع عملکرد بایومس گیاهی را توجیه میکند و بهعنوان مناسبترین مدل پیشبینی بایومس گیاهی بهشمار میآید. | ||
| کلیدواژهها | ||
| تنوع عملکرد؛ بایومس گیاهی؛ فاکتورهای محیطی؛ شاخص FAD2؛ زاگرس مرکزی | ||
| عنوان مقاله [English] | ||
| Comparison of Species Richness and FAD2 Functional Diversity in Order to Estimate the Biomass Production in the Central Zagros | ||
| نویسندگان [English] | ||
| ali goharnejad1؛ pejman tahmasebi2؛ esmael asadi2؛ javad motamedi3 | ||
| چکیده [English] | ||
| In contrast to the taxonomic biodiversity, based only on the relative abundance of species in the community, functional diversity summarizes various aspects of the biological composition and, hence, the role of populations in the community. Functional diversity may be linked directly to the ecosystem services; the plant biomass encompasses many ecosystem services such as food supply, conservation, tourism, and pollination. In this study, we tested several hypotheses (1) existence of a close relationship between species richness and plant biomass (2) existence of a close relationship between FAD2 (Functional Diversity index) and plant biomass (3) explaining the high percentage of plant biomass variations. The results showed that the species richness in order to predict the plant biomass with a correlation coefficient equal to three does not count as a proper indicator. However, the correlation coefficient of FAD2 Functional Diversity with plant biomass was about 0.4, which is relatively good indicator to estimate the plant biomass because of explaining a significant percentage of the biomass variations. Finally, our results clearly showed that the incorporation of abiotic factors, plant traits and functional diversity (FAD2), containing the parameters of rainfall, leaf length, plant height and FAD2 index, could explain 75% of plant biomass variations and was considered as the most appropriate model predicts plant biomass. | ||
| کلیدواژهها [English] | ||
| Functional diversity, plant biomass, environmental factors, FAD2 Index, central Zagros | ||
| مراجع | ||
|
Almeida-Cortez, J. S., Shipley, B. and Arnason, J. T., 1999. Do plant species with high relative growth rates have poorer chemical defences. Functional Ecology, 13(6):819–827. AOAC., 1990. Official Method of Analysis. 15th Edn., Association of Official Analytical Chemists (AOAC), Washington, DC., USA. Arias, D., 2007. Calibration of LAI- 2000 to estimate leaf area index and assessment of its relationship with stand productivity in six native and introduced tree species in Costa Rica. Forest Ecology and Management, 247: 185-193. Arzani, H., Basiri, M., Khatibi, F and Ghorbani, G., 2006. Nutritive value of some Zagros Mountain rangeland species. Small Ruminant Research, 65: 128–135. Arzani, H., Motamedi, J., Yegane., H and Shirmardi, H., 2014. Forage quality of range species in semi-steppe rangelands of Karsank, Chaharmahal-o-Bakhtiari. Iranian Journal of Range and Desert Reseach, 21(2): 221-233. Arzani, H., Sahragard, P., Torkan, J. and Saedi, K., 2010. Comparison of Phenological Stages on Forage Quality of Rangelands Species in Rangeland of Saral Kordestan. Journal of Rangeland, 4(2):160-167. Bradley, J., Butterfield, T. and Katharine, N. S., 2013. Single-trait functional indices outperform multi-trait indices in linking environmental gradients and ecosystem services in a complex landscape. Journal of Ecology, 101:9–17. Chanteloup, P and Bonis, A., 2013. Functional diversity in root and above-ground traits in a fertile grassland shows a detrimental effect on productivity. Basic and Applied Ecology. 14(3): 208–216. Conti, G. and Diaz, S., 2013. Plant functional diversity and carbon storage – an empirical test in semi-arid forest ecosystems. Journal of Ecology, 101:18–28. Cornelissen, J. H. C., Lavorel, S, Garnier, E., Díaz, S., Buchmann, N., Gurvich, D. E., Reich, P. B., Ter Steege, H., Morgan, H. D., Heijden, M. G. A., van der Pausas, J. G and Poorter, H., 2003. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide. Australian Journal of Botany, 51:335–380. CSIRO., 1990. Feeding standards for Australian livestock: ruminants. Standing Committee on Agriculture and Resource Management. Ruminants sub-committee. Melbourne, 266p. Diaz, S and Cabido ,M., 2001. Vive la différence: plant functional diversity matters to ecosystem processes. Trends in Ecology & Evolution, 16(11):646–655. Díaz, S., Lavorel, S ., De Bello, F ., Quétier, F., Grigulis, K and Robson, M., 2007(a). Incorporating plant functional diversity effects in ecosystem service assessments. Proceedings of the National Academy of Sciences of the USA. 104:20684–20689. Diaz, S., Lavorel, S., Stuart Chapin , F., Tecco P. A., Gurvich D. E and Grigulist, K., 2007(b). Functional diversity-at the crossroads between ecosystem functioning and environmental filters. 81-91. In: Canadell, J. G, Pataki, D.E, Pitelka, L. F. (Eds,) Terrestrial ecosystems in a changing world. Faghih, A. R., Ebadi, R., Nazerian, H. and Noroozi, M., 2005. Determination of attractiveness of different plants for honey bees in Khansar and Faridan Regions of Isfahan Province. Iranian Journal of Agriculture Sciences, 36(3): 521-536. Garibvand, H., Dianati, G., Mesdagi, M and shirmardi, H., 2008. Comparison forage quality of two species Echinophora platyloba and Camphorosma monspeliaca in charmahale bakhtiyari. Journal of Rangeland, 2(2):151-161. Garnier, E., Cortez, J., Billeos, G., Navas, M. L., Roumet, C., Debussche, M., Laurent, G., Blanchard, A., Aubry, D., Bellmann, A., Neill, C., Toussaint, J. P., 2004. Plant functional markers capture ecosystem properties during secondary succession. Ecology 85(9):2630–2637. Garnier, E., Shipley, B., Roumet, C and Laurent, G., 2001. A standardized protocol for the determination of specific leaf area and leaf dry matter content. Functional Ecology, 15:688–695 Hooper, D. U. F., Chapin S., Ewel, J. J., Hector, A., Inchausti, P., Lavorel, S., Lawton, J. H., Lodge, D. M., Loreau, M., Naeem, S., Schmid, B., Setälä, H., Symstad, A. J., Vandermeer, J and Wardle, D. A., 2005. Effects of biodiversity on ecosystem functioning: a consensus of current knowledge. Ecol Monogr 75:3–35 Hu, Y., Li, K., Gong, H and Yin.W., 2009. Plant diversity-productivity patterns in the alpine steppe environment. Journal of arid land, 1(1):43−48. Jafari, A., Yavari, A., Yarali, N. and Valipour, G., 2010. Assesment to dominet to conservation networks with plant diversity emphases. Journal of Environmental Studies, 54:77-88. Jamshidi, S. and Ahmadifard, S., 2011. Estimating seed bank of weed in wheat-wheat and wheat-fallow rotations in rainfed winter wheat farms. International Conference on Asia Agriculture and Animal. IPCBEE, 13:126-130. Jangjo, M., Khajee, H., Anvarkhan, S and Sanjni, S., 2013. Seed germination and dormancy tests of some rangeland species of Northern Khorasan province, Iran. International Journal of Agriculture Crop Sciences, 5(1): 21-29. Lavorel, S., Diaz, S., Cornelissen, J. H, Garnier, E., Harrison, S. P., McIntyre, S., Pausas, J., Pérez, N., Roumet, C. and Urcelay, C., 2007. Plant functional types: Are we getting any closer to the Holy Grail.. Terrestrial Ecosystems in a Changing World. 149-164. Lavorel, S., Grigulis, K.., Lamarque, P., Colace, M. P., Garden, D., Girel, J., Pellet, G and Douzet, R., 2011. Using plant functional traits to understand the landscape distribution of multiple ecosystem services. Journal of Ecology, 99: 135–147. Loreau, M., Naeem, S., Inchausti, P., Bengtsson, J., Grime, J. P., Hector, A., 2001. Biodiversity and ecosystem functioning: Current Knowledge and future Challenges Science, 294: 804–808. Magurran, A. E., 1988. Ecological diversity and its measurement. Princeton University Press, Princeton, New Jersey, USA.7-45. Mansori, Z., Tarhmasebi, P., Saeedfa, M and Shirmardi, H., 2013. Response plant diversity functional diversity to animal grazing in rainfall gradient. Journal of Plant Ecosystem Conservation, 1(3): 91-104. Mazandarani, M., Kassaei, M and Rezaee, B., 1383. Medicinal plants in Ziarat Mountain Gorgan. Iranian Journal of Medicinal and Aromatic Plants Research, 20:40-58. Mogadam, M., 2005. Ecology of plants . Tehran university Publication, 702p. Motamedi, J., Arzani, H., Sheidaye, E and Alijanpour, A., 2013. Forage quality of 25 important species from summer rangelands of Nazlo Chai Basin in Urmia. Iranian Journal of Range and Desert Reseach, 20(4): 653-663. Mouillot, D., Villéger, S., Scherer-Lorenzen, M. and Mason, N. W. H., 2011. Functional structure of biological communities predicts ecosystem multifunctionality. PLOS ONE, 6(3):1-9. Niromand, E., Jami, M. and Zamani, G., 2012. Responses of quality Lathyrus sativus L. in Birjand. Iranian Journal of Field Crops Research 9(4): 678-684. Oddy, V. H., Robards, G. E. and Low, S. G., 1983. Prediction of invivo dry matter digestibility from the fiber nitrogen content of a feed. 395-398. In Feed Information and Animal Production, (Eds,) Robards, G. E., and Pakham, R.G., Commonwealth Agricultural Bureaux, Australia. Pla, L., Casanoves, F. and Rienzo, J. D., 2012. Quantifying functional biodiversity. ISBN, 978-94-007-2647-5. Raoofi, V., Ebrahimi, A., Arzani, H. and shojaee, Z., 2013. Investigation on relationship between palatability and Forage quality in some of rangeland plants (Case study: Karsanak rangelands of Chaharmahal-va-Bakhtiari Province). Journal of watershed management and rangeland, 66(1); 111-120. Schumacher, J., Roscher, C., 2009. Differential effects of functional traits on aboveground biomass in semi-natural grasslands. Oikos, 118: 1659_1668. Tagavizad, R., Majd, A., Nazarian, H. and Mehrabian, S., 2007. Survey of the attractive characters of the nectar and pollen plants for honeybee in Sirachal region, Tehran Province. Pajouhesh & Sazandegi, 74: 41-52. Van Soest, P. J., 1982. Nutritional ecology of the ruminant. Cornell University Press, Ithaca, NY, USA, 488. Walker, B. H., Kinzig, A., Langridge, J. L., 1999. Plant attribute diversity, resilience, and ecosystem function: the nature and significance of dominant and minor species. Ecosystems, 2:95–113. | ||
|
آمار تعداد مشاهده مقاله: 1,225 تعداد دریافت فایل اصل مقاله: 611 |
||