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Carbon stock and rate of carbon sequestration in dipterocarpus forests of Manipur,Northeast India

Journal of Forestry Research 2015年第2期26卷 315-322页

作者： L.Supriya Devi P.S.Yadava Department of Life Sciences Manipur University

We examined the carbon stock and rate of carbon sequestration in a tropical deciduous forest dominated by dipterocarpus tuberculatus in Manipur,North East *** of aboveground biomass was determined by harvest method and multiplied with density of tree *** aboveground biomass was between18.27–21.922 t ha-1and the carbon stock ranged from9.13 to 10.96 t C ha-1across forest *** biomass and carbon stock increased with the increase in tree *** rate of carbon sequestration varied from1.4722 to 4.64136 t ha-1year-1among the dominant tree species in forest stands in tropical deciduous forest *** rate of carbon sequestration depends on species composition,the density of large trees in different girth classes,and anthropogenic disturbances in the present forest *** work is required to identify tree species having the highest potential to sequester CO2 from the atmosphere,which could lead to recommendations for tree plantations in a degraded ecosystem.

关键词： Carbon budget Carbon sequestration dipterocarpus Biomass Net production

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The Status of Dipterocarpaceae Plants in Taiwan

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American Journal of Plant Sciences 2023年第9期14卷 1061-1074页

作者： Sheng-Zehn Yang Po Hao Chen Department of Forestry National Pingtung University of Science and Technology Pingtung Liouguei Research Center Taiwan Forest Research Institute Liouguei District Kaohsiung Graduate Institute of Bioresources National Pingtung Univ. of Science and Technology Pingtung

The Dipterocarpaceae family is famous for timber productions in Southeast Asia. The Shuangxi tropical arboretum in Taiwan introduced some dipterocarp species in 1935. However, the changes in abundance and regeneration of each dipterocarp species are unknown. This study aimed to investigate their diameters patterns and regeneration ability over a long period. The results showed that only four dipterocarp species were survived in this arboretum. An individual plant of dipterocarpus gracilis Blume had a diameter of 5.7 cm. A young seedling was 90 cm in height, and some fruits germinated directly on the ground. A few fruits of dipterocarpus grandiflorus (Blanco) Blanco were collected;however, and no seedlings have been found thus far, and its annual growth rate was 2.82% as the fastest growth speed. The annual growth rate of Rubroshorea polysperma (Blanco) P. S. Ashton & J. Heck was 2.32%, which is the second growth speed among the different species. Moreover, the abundance of R. polysperma increased as the fruits germinated. In particular, an uneven-aged forest of R. polysperma was established near the southwest area of the No. 2225 nature conservation protection forest, and an individual with a 100 cm DBH was also found. The fruits of Rubroshorea palosapis (Blanco) P. S. Ashton & J. Heck. could not be collected, but a young seedling appeared, with a height of approximately 150 cm. Therefore, Taiwan should be considered as the new distribution site for the Dipterocarpaceae family, all four dipterocarp species can grow in this area and need to be protected carefully.

关键词： Dipterocarpaceae dipterocarpus Rubroshorea Shuangxi Tropical Arboretum Protection Forest

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