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- 저자 : Mayu Kurosu (검색결과 2 건)
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Kawada, Kiyokazu,Mayu Kurosu,Yunxiang Cheng,Tsagaanbandi Tsendeekhuu,Wuyunna,Toru Nakamura,Ichiroku Hayashi 한국생태학회 2008 Journal of Ecology and Environment Vol.31 No.4
In order to assess the effect of grazing on grasslands using floristic composition, we studied the floristic composition and plant biomass of steppe vegetation in Hulunbeier, Inner Mongolia. The dominant species of the grasslands were Stipa krylovii, Stipa grandis and Leymus chinensis. Floristic composition changed according to grazing pressure, being light, heavy and moderate. Under heavy grazing conditions, the importance value of P. acaulis, C. korshinskyi and Cleistogenes squarrosa increased in the plant community. These species were indicators of heavily grazed stand. Plant biomass of the stands ranged within 11.6 g m-2 and 63.5 g m-² and 69.5 g m-² and 166.2 g m-² to the west and east of Lake Hulun, respectively. These values are equivalent to ca. 450~1,000 kg of atmospheric carbon per hector, which is retained within the stand during the summer season. In order to assess the effect of grazing on grasslands using floristic composition, we studied the floristic composition and plant biomass of steppe vegetation in Hulunbeier, Inner Mongolia. The dominant species of the grasslands were Stipa krylovii, Stipa grandis and Leymus chinensis. Floristic composition changed according to grazing pressure, being light, heavy and moderate. Under heavy grazing conditions, the importance value of P. acaulis, C. korshinskyi and Cleistogenes squarrosa increased in the plant community. These species were indicators of heavily grazed stand. Plant biomass of the stands ranged within 11.6 g m-2 and 63.5 g m-² and 69.5 g m-² and 166.2 g m-² to the west and east of Lake Hulun, respectively. These values are equivalent to ca. 450~1,000 kg of atmospheric carbon per hector, which is retained within the stand during the summer season.
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Hayashi, Ichiroku*,Kiyokazu Kawada,Mayu Kurosu,Amgaa Batjargal,Tsagaanbandi Tsundeekhuu,Toru Nakamura 한국생태학회 2008 Journal of Ecology and Environment Vol.31 No.2
We describe plant biomass in the grasslands of the Mongolian steppe obtained using a quadrat sampling technique. Four sites were studied in the northeastern Mongolia located between 47°12'N and 47°40'N and 102°22'E and 112°24'E, which were typical grasslands of the steppe. Biomass, carbon and nitrogen content were determined for the plants collected from the grazed and ungarazed stands. With the measurements above, we expect to obtain information on grazing effects on the grasslands and carbon sequestration of the grassland from the air. In order to estimate the biomass without destroying the stands, we derived an equation to describe the relationship between plant biomass and v-value using plant height and species coverage within the stand. Estimated plant biomass in the ungrazed and grazed stands ranged between 108.0 g m-2 and 13.4 g m-2 and between 97.5 g m-2 and 14.1 g m-2 in late June 2005, respectively. Litter in the ungrazed and grazed stands ranged from 330.3 g m-2 to 78.4 g m-2 and from 188.0 g m-2 to 20.3 g m-2, similarly. Average carbon and nitrogen contents in plants and in litter were 43.0% and 1.9% and 33.7% and 1.4%, respectively. In study sites at Baganuur, the carbon and nitrogen content of plant materials (plant plus litter) was 118.4 g m-2 and 4.7 g m-2 on 30 June 2005. We describe plant biomass in the grasslands of the Mongolian steppe obtained using a quadrat sampling technique. Four sites were studied in the northeastern Mongolia located between 47°12'N and 47°40'N and 102°22'E and 112°24'E, which were typical grasslands of the steppe. Biomass, carbon and nitrogen content were determined for the plants collected from the grazed and ungarazed stands. With the measurements above, we expect to obtain information on grazing effects on the grasslands and carbon sequestration of the grassland from the air. In order to estimate the biomass without destroying the stands, we derived an equation to describe the relationship between plant biomass and v-value using plant height and species coverage within the stand. Estimated plant biomass in the ungrazed and grazed stands ranged between 108.0 g m-2 and 13.4 g m-2 and between 97.5 g m-2 and 14.1 g m-2 in late June 2005, respectively. Litter in the ungrazed and grazed stands ranged from 330.3 g m-2 to 78.4 g m-2 and from 188.0 g m-2 to 20.3 g m-2, similarly. Average carbon and nitrogen contents in plants and in litter were 43.0% and 1.9% and 33.7% and 1.4%, respectively. In study sites at Baganuur, the carbon and nitrogen content of plant materials (plant plus litter) was 118.4 g m-2 and 4.7 g m-2 on 30 June 2005.
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