Diversity and ecological role of Dipterocarpus obtusifolius Teijsm. ex Miq.  in Nui Cau - Dau Tieng protection forest, Binh Duong province

Nguyen Thi Ha; Nguyen Thi Hanh; Nguyen Thi Hoa; Nguyen Van Lam; Phan Thanh Trong; Pham Chi Thinh; Nguyen Van Hop

doi:10.55250/Jo.vnuf.9.1.2024.062-072

Keywords:

Biomass, Dipterocarpaceae, dominant species, ecological function, IVI index

Abstract

Studying the diversity and ecological role of dominant species provides an important foundation for understanding the influence of dominant species on the diversity and biomass production capacity of plant communities. This study was conducted at the Nui Cau - Dau Tieng Protection Forest Management Board, Binh Duong province, to understand the diversity and ecological role of Dipterocarpus obtusifolius Teijsm. ex Mig. in the ecosystem forests. A total of 19 plots, each 0.1 ha in size (50 m x 20 m), were used for data collection. Trees with a diameter at breast height (dbh) ≥ 6 cm were recorded, including species name, number of individuals, dbh, and overall height. The study employed importance value index analysis (IVI%) and aboveground biomass (AGB) to assess the ecological role of dominant species. Findings revealed that: (1) Communities with dominant species had low species richness and fluctuating diversity levels, (2) The ecological role of dominant species varied across forest states, decreasing from very poor > poor > medium forests, and (3) Increasing IVI% and AGB% of dominant species influenced woody species structure and biomass output in the plant community. This study offers valuable insights to enhance forest management and quality in the area.

References

. POWO (2024). Available: [Accessed https://powo.science.kew.org/.

. Hop T (2002). Timber resources in Vietnam. Agricultural Publishing House, Hanoi.

. Van-Long L, Hop NV, & Duong DT T (2020). The ecological role of Dipterocarpaceae family in tropical moist evergreen closed forest at Tan Phu Dong Nai Province. Journal of Forestry Science and Technology. (4): 47-58.

. Quang-Bao T, & Viet LH (2019). Ecological role of shorea roxburghii population in tree species composition of tropical moist evergreen closed forest in Tan Phu zone of Dong Nai province. Journal of Forestry Science and Technology. (5): 90-98.

. Thi-Ha N, Hop NV, Hoan VM, Quy NV, Hung DV, & Ngoan TT (2023). New records of plant species for the flora of Nui Cau Dau Tieng protection forest, Binh Duong province, Vietnam. Journal of Forestry Science and Technology. (1): 67-76.

. Ministry of Agriculture and Rural Development (2018). Circular No. 33/2018/TT-BNNPTNT of the Ministry of Agriculture and Rural Development, November 16, 2018: Regulations on survey, inventory and monitoring of forest developments.

. Ho PH (1999-2003). An Illustrated Flora of Vietnam (Volume 1-3), 2nd ed. Youth Publishing, Hanoi, Vietnam.

. Tien-Ban N, Ly TD, Tap N, Dung VV, Thin NN, Tien NV, & Khoi NK (2007). Vietnam Red Data Book, Part II: Plant. Natural Science and Technology Publishing House, Hanoi, Vietnam.

. Vietnamese Government (2021). Decree No. 84/2021/ND-CP issued on 22 September 2021 amendments to the government’s decree No. 06/2019/ND-CP dated 22 January 2019 on the management of endangered, rare, and precious species of forest fauna and flora and observation of Convention on International Trade in Endangered Species of Wild Fauna and Flora.

. Trung TV (1999). Tropical forest ecosystems in Vietnam. Science and Technology Publishing House, Ho Chi Minh City, Vietnam.

. Barbour MG, Burk JH, Pitts WD, Gilliam FS, & Schwartz MW (1999). Aboveground Plant Ecology, 3r dedition. Benjamin Cummings, California.

. Brown S (1997). Estimating Biomass and Biomass Change of Tropical Forests: a Primer. UN FAO Forestry. Food and Agriculture Organisation Rome.

. Van-Hop N, Quy NV, Lam NV, Trong PT, & Thinh PC (2023). Woody plant diversity and aboveground carbon stock of Dipterocarpus chartaceus dominant forests in Binh Chau-Phuoc Buu Nature Reserve, South Vietnam. Asian J For. 7(2): 115-125.

. Manh-Huong K, Huy ND, Lam NT D, Luong NT, & Hop NV (2021). Woody plant diversity in tropical moist evergreen closed forest in Tan Phu forest, Dong Nai porvince. Journal of Forestry Science and Technology. (11): 70-81.

. Van-Quy N, Phuong MP, Meng L, Hung MB, Ha TP, Hop VN, Tuan TN, & Yong XK (2022). Spatial structure of the dominant tree species in an evergreen broadleaved forest stand in South Vietnam. Biol Bull Russ Acad Sci. (49): S69–S82.

. Van-Quy N, Hop NV, Tuan NT, & Cuong TC (2021). Effects of spatial structure of woody species diversity in tropical moist evergreen closed forest at Dong Nai Cultural Nature Reserve. Journal of Forestry Science and Technology. (3): 95-105.

. Thi-Luong N, Quy NV, & Hop NV (2023). Woody plants diversity and its relationship with carbon stock in the tropical moist evergreen closed forest, Dong Nai Cultural Nature Reserve. Journal of Forestry Science and Technology. 8(2): 128-137.

. Van-Hop N, Viet LH, Bao TQ, & Luong NT (2020). Woody plant diversity and aboveground carbon stocks of (Shorea roxburghii G. Don) dominant forests in Tan Phu, Dong Nai province. Journal of Forestry Science and Technology. (10): 66-76.

. Van-Hop N, Long LV, Quy NV, & Luong NT (2021). Woody plants diversity and aboveground carbon stocks of some Dipterocarpaceae communities in Tan Phu, Dong Nai province. J Agric Rural Dev. (21): 94-103.

. Hejda M, Sádlo J, Kutlvašr J, Petřík P, Vítková M, & Vojík M (2021). Impact of invasive and native dominants on species richness and diversity of plant communities. Preslia. (93): 181.

. Roscher C, Schumacher J, Gubsch M, Lipowsky A, Weigelt A, Buchmann N, Schmid B, & Schulze ED (2012). Using plant functional traits to explain diversity–productivity relationships. PLoS ONE. (7): e36760.

. Grime JP (1997). Biodiversity and ecosystem function: the debate deepens. Science. (277): 1260–1261.

. Tilman D (1999). The ecological consequences of changes in biodiversity: a search for general principles. Ecology. (80): 1455–1474.

. Sala OE, Lauenroth WK, Mcnaughton SJ, Rusch G, & Zhang X (1996). Biodiversity and ecosystem functioning in grasslands: Functional roles of biodiversity: a global perspective. . Wiley, Chichester, West Sussex.

. Kunte K (2008). Competition and species diversity: removal of dominant species increases diversity in Costa Rican butterfly communities. Oikos. (117): 69–76.

. Gong X, Chen Q, Lin S, Brueck H, Dittert K, Taube F, & Schnyder H (2011). Tradeoffs between nitrogen - and water-use efficiency in dominant species of the semiarid steppe of Inner Mongolia. Plant Soil. (340): 227–238.

. Creed RP, Cherry RP, Pflaum JR, & Wood CJ (2009). Dominant species can produce a negative relationship between species diversity and ecosystem function. Oikos. (118): 723–732.

. Yang XD, Lu GH, & Tian YH (2009). Ecological groups of plants in Ebinur Lake Wetland Nature Reserve of Xinjiang. Chinese Journal of Ecology. 28(12): 2489–2494.

. Johansson T, Hjältén J, De Jong J, & Von Stedingk H (2013). Environmental considerations from legislation and certification in managed forest stands: A review of their importance for biodiversity. Forest Ecology and Management. (303): 98-112.