Carbon stock dynamics in the tropical rain forests
of the Uttara Kannada district, Western Ghats, India

Bhat, D. M.; Murali, K. S.; Ravindranath, N. H.

doi:10.1504/ijep.2003.003746

Cited by 35 publications

(36 citation statements)

References 10 publications

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“…The decreasing trend of a-diversity and its components along the perturbation intensity, as noted in this study, reflects enhanced utilization pressure (Bhat et al 2000). Increasing disturbance can also lead to decreased resource availability (Brokaw 1985).…”

Section: Species Diversitysupporting

confidence: 63%

Structure, diversity, and regeneration of tropical dry deciduous forest of northern India

Sagar

Singh

2005

Biodivers Conserv

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This study examined the impact of disturbance on the pattern of diversity, forest structure and regeneration of tree species in the Vindhyan dry tropical forest of India. A total of 1500 quadrats distributed over five, 3-ha permanent plots in five sites, differing in degree of disturbance, were used to enumerate and measure the tree species. A total of 65 species with 136,983 individuals were enumerated in the total 15-ha area for stems ‡ 30 cm height. The number of species and number of stems ranged from 12 to 50 and 8063-65331 per 3-ha area. The number of species and stems for trees ‡10 cm dbh ranged from 3 to 28 species, with a mean value of 16 species ha À1 , and from 16 to 477 stems, with a mean value of 256 stems ha À1 , respectively. The adult based PCA ordination indicated uniqueness of sites in terms of species composition and habitat characteristics. PCA ordination also showed uniqueness of sites in terms of seedling composition, but the seedling and adult distributions were not spatially associated. The distinct species composition at the different sites and at the two life-cycle stages on the same site is indicative of marked spatio-temporal dynamics of the dry tropical forest. The density-diameter semi-logarithmic curves ranged from a near linear to an overall concave appearance with a limited plateau in the mid-diameter ranges. The a-diversity and its components decreased with increasing disturbance intensity, reflecting enhanced utilization pressure with increasing disturbance. The site-wise and species-wise regression analyses of the number of individuals in different stages of the species revealed that both the level of disturbance and the nature of species strongly affect the regeneration. In conclusion, although the forest is relatively species-poor, the differential species composition on different sites and the temporal dynamics lend a unique level of diversity to the tropical dry deciduous forest.

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Section: Species Diversitysupporting

confidence: 63%

Structure, diversity, and regeneration of tropical dry deciduous forest of northern India

Sagar

Singh

2005

Biodivers Conserv

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“…The frequent tree cutting was evident from the cut sign and the multiple branching of stems at ground level as authenticated by the one and half to three-fold increased disturbance score recorded in sites AP and SP over a decade. Bhat et al (2000) also found decreased basal area with increasing human disturbance in tropical forests of Western Ghats, India. Baithalu et al (2013) and Mani and Parthasarathy (2009) also reported that the basal area decreased in other tropical dry evergreen forest sites AK and TM with increasing disturbance, while Hitimana et al (2004) reported that the basal area in larger diameter classes has become reduced in western Kenya.…”

Section: Discussionmentioning

confidence: 79%

“…Long-term studies of tree population dynamics are critical for understanding the conservation need of tropical forest ecosystems (Hubbell and Foster 1990;Condit 1995;Sheil et al 2000). Several longterm studies of tree population dynamics are available in both tropical and temperate forests (Lieberman and Lieberman 1987;Kochummen and Manokaran 1987;Foster and Hubbell 1992;Sukumar et al 1992;Balslev and Korning 1994;Bhat et al 2000;Lwanga et al 2000;Battles et al 2003;Takahashi et al 2003;Fashing et al 2004;Kariuki et al 2006;Baithalu et al 2012Baithalu et al , 2013. However, most studies on forest composition worldwide have been conducted on rain forest vegetation, and there are relatively few data available on tropical dry forest communities (Sussman and Rakotozafy 1994).…”

Section: Introductionmentioning

confidence: 99%

Tree Diversity Changes over a Decade (2003-2013) in Four Inland Tropical Dry Evergreen Forest Sites on the Coromandel Coast of India

Elumalai¹,

Parthasarathy²

2016

Journal of Forest and Environmental Science

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Forest tree diversity inventory and its periodical monitoring are important to understand changes in tree population structure and to provide information useful for biodiversity conservation and reserve management. In a long-term forest dynamics program in Indian tropical dry evergreen forest, this communication deals with tree diversity changes at decadal interval. The initial inventory of tree diversity was carried out in 2003, in four tropical dry evergreen forest sites -(much disturbed sites Shanmuganathapuram -SP and Araiyapatti -AP and moderately disturbed sites -Karisakkadu -KR and Maramadakki -MM) on the Coromandel Coast of peninsular India, by establishing four 1ha permanent plots, one in each site. In 2013, the four plots were re-inventoried for tree diversity (≥10 cm gbh) changes which yielded 56 species from 46 genera and 26 families. The studied forest sites are threatened by disturbance due to multiple reasons; cutting of trees inside of the forest, grazing by goats, construction of temple approach road, and some aspects cultural attachment of local people like constructing new, additional strctures of temple by denuding a portion of forest etc.. Tree species richness over a decade increased by four species in site SP, two species in site AP, and one species in site KR, but decreased by one species in site MM. Tree density decreased drastically by 480 (28.92%) and 102 (12.63%) stems ha -1 respectively in sites SP and AP, but moderately increased by 82 (12.09%) stems ha -1 in site KR and 26 in ten years. The long-term forest monitoring data will be valuable to understand forest dynamics and for conservation and management of this and similar tropical forests.

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“…The reduction in basal area could also be due to the forest disturbances like construction of road and temple structures, and cutting of tree poles for agricultural implements. Bhat et al (2000) found a correlation between tree basal area and the rate of forest disturbance. Decrease in basal area over ten years implies forest disturbance in this locality.…”

Section: Resultsmentioning

confidence: 93%

Tree population changes in a tropical dry evergreen forest of south India over a decade (1992–2002)

Venkateswaran

Parthasarathy

2005

Biodivers Conserv

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Changes in species composition and density of trees ‡10 cm gbh in a tropical dry evergreen forest in Puthupet, south India are interpreted for the period between 1992 and 2002. A 1-ha plot was inventoried in 1992 and was recensused in 2002. During the 10-year interval tree taxa diversity as well as stand density increased, but the basal area value decreased. Tree species richness increased by 21% (from 24 to 29 species) by an addition of eight species and local extinction of three species. The tree density increased just by eight individuals (from 1330 stems ha À1 in 1992 to 1338 ha À1 in 2002), but the basal area decreased by 8% (from 37.5 to 34.5 m 2 ha À1 ). Many species (11 numbers) have increased in abundance rather than decreased. Many surviving species seem to have considerable stability in abundance at the local scale. The density of smaller stems (10-29 cm gbh) increased by 15.3%, while that of the larger trees decreased drastically (81.6%). Ninety percent of the missing stems were from the middlestorey of the forest. Tree density changes among the three ecological guilds revealed a decrease in stem density and an increase in basal area in the lowerstorey; while the middlestorey exhibited a reverse trend. Family-wise, tree density changes revealed that the majority of families (67%) showed an increase in stem density. Long-term studies on tree population changes are essential to estimate tree mortality and recruitment rates, which will provide a greater insight in tropical forest dynamics.

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Carbon stock dynamics in the tropical rain forests of the Uttara Kannada district, Western Ghats, India

Cited by 35 publications

References 10 publications

Structure, diversity, and regeneration of tropical dry deciduous forest of northern India

Structure, diversity, and regeneration of tropical dry deciduous forest of northern India

Tree Diversity Changes over a Decade (2003-2013) in Four Inland Tropical Dry Evergreen Forest Sites on the Coromandel Coast of India

Tree population changes in a tropical dry evergreen forest of south India over a decade (1992–2002)

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