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Seasonal Changes In Specie Diversity, Phytomass And Net Primary Production In Temperate Grassland In Kumaun, Central Himalaya, India

Joshi, Mukesh, (1995) Seasonal Changes In Specie Diversity, Phytomass And Net Primary Production In Temperate Grassland In Kumaun, Central Himalaya, India. Journal of Tropical Forest Science, 7 (4). pp. 521-531. ISSN 0128-1283

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Official URL: http://info.frim.gov.my/cfdocs/infocenter/jtfsonline/jtfs/v7n4/521-531.pdf

Affiliations

Kumaun University, Dept of Botany, India

Abstract

Species diversity, plant biomass and net primary productivity are presented for a temperate grassland of Kumaun, Central Himalaya, India. The species diversity declined from a maximum in September (2.5) to a minimum in December (1.7). The monthly live shoot biomass exhibited a unimodel growth pattern with peak live shoot biomass of 278 g m-2 that was attained in September. The seasonal pattern showed that maximum (84%) above-ground production occurred during the rainy season and minimum (< 1%) during the winter season. The below-ground production was maximum (52%) during the winter season and minimum (11%) during the summer season. The annual net shoot production was 361 g m"'2 and total below-ground production was 193gm2. Of the total input, 65% was chanelled to above-ground parts and 36% to below-ground parts. Transfer of live shoots to dead shoots compartment and dead shoots to litter compartment was 51% and 72% respectively. The total dry matter disappearance was 48% of the total input within the annual cycle. The grassland showed a net accumulation of surplus organic matter, indicating the serai nature of this grassland.

Item Type:Journal
Additional Information:This note was added by the search_and_modify.pl script.
Keywords:Species diversity, biomass, net primary productivity, temperate grassland, turnover rate, litterfall
Subjects:S Agriculture, Forestry
ID Code:9230

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