Investigating plant diversity indices, soil characteristics and floristic quality in three different forest types in Zagros

Document Type : Original Research

Authors
Z. Mirazadi 1
B. Pilehvar 2
H. jafari sarabi 3
1 Assistant professor, Forestry Department, Faculty of Agriculture and Natural Resources, Lorestan University, Khoramabad, Iran
2 Associate professor, Forestry Department, Faculty of Agriculture and Natural Resources, Lorestan University, Khoramabad, Iran
3 Ph.D. graduated of silviculture and forest ecology, Forestry Department, Faculty of Agriculture and Natural Resources, Lorestan University, Khoramabad, Iran
Abstract
Aim: This study investigated the variation in plant diversity, floristic quality indices, and the forest integrity of various broadleaf forest types.

Materials & Methods: In this study, we used 288 plots of 1m2 in the middle Zagros forest to investigate the role of three forest types including Quercus infectoria, Quercus brantii, and Pyrus glabra on forest diversity indices and floristic quality

Findings: results revealed significant differences in Shannon wiener, Margalef, and Menhinic indices, as well as some soil properties, between forest types, but no significant differences in evenness and Simpson indices. Diversity indices mean coefficient of conservatism and floristic quality index (FQI) were significantly greater in the protected forest dominated by Quercus infectoria than in other protected forests.

Conclusion: This study demonstrates that tree species and certain topographical and edaphic factors have distinct effects on the distribution of understory plants, plant diversity, and floristic quality in different forest types. The results of this research, while confirming the use of plant diversity indices, also introduce the conservatism coefficient and species fidelity as additional tools in evaluating forest integrity, because by using them, more and better information can be obtained about the conditions of the forest.
Keywords
Conservation
diversity indices
floristic quality
herbaceous plants
Soil properties
Tree species

Subjects

1. Dudley N. Authenticity in Nature: Making Choices about the Naturalness of Ecosystems; Routledge: London, UK; New York, NY, USA. 2012.
2. Karr J.R. Biological integrity and the goal of environmental legislations: lessons for conservation biology. Conserv Biol. 1990; 4: 244–250.
3. Barbier S., Gosselin F., Balandier PH., Influence of tree species on understory vegetation diversity and mechanisms involved A critical review for temperate and boreal forests. For. Ecol. Manag. 2008; 254 (1): 1-15.
4. Norris M., Avis P., Reich P., Hobbie S., Positive feedbacks between decomposition and soil nitrogen availability along fertility gradients. Plant Soil. 2012; 367: 347–361.
5. Aponte C., García L.V., Marañón T., Tree species effects on nutrient cycling and soil biota: a feedback mechanism favouring species coexistence. For. Ecol. Manag. 2013; 309: 36–46.
6. Poorter L., Van der Sande M., Arets E., Biodiversity and climate determine the functioning of Neotropical forests. Glob. Ecol. Biogeogr. 2017; 26(12): 1423-1434. 7. Shanon C.E., Weaver W. The Mathematical Theory of Communication. Urbana, IL: University of Illinois Press. 1949.
8. Whittaker R.H. Communities and Ecosystems. 2nd Revise Edition, MacMillan Publishing Co., New York. 1975.
9. Jafari E., Karimi A., Hatami H., Presentation of Diversity, Life Forms, and Chorology of Plant Species in Galehdar Watershed (Fars Province, Iran). ECOPERSIA. 2019; 7(1): 39-46.
10. Lindenmayer D.B., Franklin J.F., Conserving forest biodiversity: A comprehensive multiscaled approach. Island, Washington.
11. Mirazadi Z., Pilehvar B., Abrari Vajari K., Introducing Conservatism Coefficient and determining it for ground flora in middle Zagros Forest, (Case study: Kakareza Forest, Lorestan province). IJFPR. 2017; 25(1): 70-81.
12. Rooney T.P., Rogers D.A. The modified floristic quality index. Nat. Areas J. 2002; 22: 340-344.
13. Taft J.B., Hauser C., Robertson K.R., Estimating floristic integrity in tallgrass prairie. Biol Conserv. 2006; 42-51.
14. Nichols J.D., William B.K., Monitoring for conservation. Trends Ecol. Evol 2006; 21(12): 668-673.
15. Zhang J.T., Dong Y. Factors affecting species diversity of plant communities and the restoration process in the loess area of China. 2010.
16. DeKeyser E.S., Biondini M., Kirby D., Hargiss C., Low prairie plant communities of wetlands as a function of disturbance: physical parameters. Ecol Indic. 2009; 9(2): 296-306.
17. Abrams M.D., Hulbert L.C., Efect of topographic position and fire on species composition in tallgrass prairie in northeast Kansas. Am. Midl. Nat. AM. 1987; 117(2): 442-445.
18. Rechinger, KH. Minuartia in K. H. Rechinger, Flora Iranica. 163: 28-53–cademische Druck & verlagsanstalt Graz.
19. Mozaffarian V. Dictionary of Iranian plant names. Institute of Farhang-e Mo’aser, Tehran. 2004.
20. Townsend C.C., Guest E., Omar S.A., Al-kayat A.H. Flora of Iraq. Ministry of Agriculture & Agrarian Reform, Republic of Iraq. 1985.
21. Simpson E.H. Measurement of diversity. Nature. 1949.
22. Nelson D.W., Sommers L.E. Total carbon, organic carbon and organic matter. American Society of Agronomy, Madison. 1982.
23. Olsen S.R., Sommers L.E. Phosphorus. In: Miller AL, Keeney RH (eds) Methods of soil analysis. Part 2. Chemical and microbiological properties. Springer, Madison. 1982.
24. Ampoorter E., Baeten L., Koricheva J., Vanhellemont M., Verheyen K., Do diverse Am Midl Nat overstoreys induce diverse understoreys?Lessons from an experimental–observational platform in Finland. For. Ecol. Manag. 2014; 318: 206–215.
25. Fraterrigo J.M., Turner M.G., Pearson S.M., Previous land use alters plant allocation and growth in forest herbs. J. Ecol. 2006; 94(3):548–557.
26. Kalkhan M.A., Stohlgren T.J., Using multi-scale sampling and spatial cross-correlation to investigate patterns of plant species richness. Environ. Monit. Assess. 2000; 3(591): 591-605.
27. Dijkstra F.A., Smits M.M., Tree species effects on calcium cycling: the role of calcium uptake in deep soils. Ecosystems. 2002; 5: 385–398.
28. Chen X., Li B.L., Lin Z.S. 2003., The acceleration of succession for the restoration of the mixed-broadleaved Korean pine forests in Northeast China. For. Ecol. Manag. 2003; 186: 197–206.
29. Ghasemi Aghbash F., Soil Carbon Sequestration and Understory Plant Diversity under Needle and Broad-leaved Plantations (Case Study: Shahed Forest Park of Malayer City). ECOPERSIA. 2018; 6(1):1-10.
30. Haghdoost N., Akbarinia M., Hosseini S.M., Kooch Y., Conversion of Hyrcanian degraded forests to plantations: effects on soil C and N stocks. Ann. Biol. Res. 2011; 2: 385–399.
31. Reeves D.W., The role of soil organic matter in maintaining soil quality in continuous cropping systems. SOIL TILL RES. 1997; 43: 131-167.
32. Stohlgren T.J., Chong G.W., LISA D., SchellKelly A., Assessing Vulnerability to Invasion by Nonnative Plant Species at Multiple Spatial Scales. Environ Manage. 2002; 29(4): 566-577.
33. Demarchi L.O, Scudeller V.V, Moura L.C, Dias-Terceiro R.G, Lopes A, Wittmann F.K, Piedade M.T.FFloristic composition, structure and soil-vegetation relations in three white-sand soil patches in central Amazonia. Acta Amaz. 2018; 48: 46–56.
34. Roem W.J., Berendse F., Soil acidity and nutrient supply ratio as possible factors determining changes in plant species diversity in grassland and heathland communities. Biol. Conserv. 2000; 92:151-161.
35. Kukshal S., Nautiyal B.P., Anthwal A., Sharma A., Bhatt A.B., Phytosociological investigation and life form pattern of grazinglands under pine canopy in temperate zone, Northwest Himalaya. Indian J. Bot. 2009; 4(2):55–69.
36. Jimenez J.J., Lal R., Leblanc H.A., Russo R.O., Soil organic carbon pool under native tree plantations in the Caribbean lowlands of Costa Rica. For. Ecol. Manag. 2007; 241: 134–144.
37. Sharma B., Sharma K., Influence of various dominant trees on phytosociology of under storey herbaceous vegetation. Recent res. sci. technol. 2013; 5(2):41–45.
38. Eviner V.T., Chapin, F.S., Functional matrix: a conceptual framework for predicting multiple plant effects on ecosystem processes.Annu Rev Ecol Syst. 2003; 34: 455–485.
39. Körner CH. Biosphere response to CO2 enrichment. Ecol Appl 2006; 10(6):1590-1619.
40. Oommen M.A., Shanker K., Elevational species richness patterns emerge from multiple mechanisms in Himalayan woody plants. J. Ecol. 2005; 86(11): 303
ECOPERSIA
Volume 10, Issue 4 - Serial Number 42
December 2022
Pages 311-321