Author details
Author B. Bhatta |
Available item(s) by this author (3)
Refine your search Apply to external sourcesAn assessment on abundance of aquatic invasive plants and their management in Beeshazar lake, Chitwan / A. Sharma in Journal of Agriculture and Forestry University, Volume 2 (2018)
Title : An assessment on abundance of aquatic invasive plants and their management in Beeshazar lake, Chitwan Material Type: printed text Authors: A. Sharma, Author ; S. Bhattarai, Author ; B. Bhatta, Author Publication Date: 2018 Article on page: 225-230 p. Languages : English (eng) Keywords: Aquatic invasive species, beeshazar lake, frequency, abundance, management Abstract: Biological invasion have been a serious threat to global biodiversity, leading to global environmental
change. These scenarios are well reflected even in the protected lakes. Invasion by the alien species
has been the second leading problem, first being draining the water in Beeshazar Lake, Chitwan.
The excessive growth of these species is probably due to the high nutrients level in the lake. Under
these circumstances, this study was carried out to prepare checklist of alien invasive species, appraise
species-wise status of aquatic invasive species, and document existing practices for controlling them
in the Beeshazar Lake, Chitwan. Systematic sampling was used in which 39 plots, each with size of
1m × 1m, to count the grass species, were laid out at 58m interval. This process was facilitated by
Arc GIS software. Frequency, relative frequency, and abundance of species were calculated to find
the status of species. A total of six species were recorded among which Eichhornia was the most
frequent (F=79.4; RF=35.6) and abundant, (A=18). As this research was done during dry season,
species found during wet season were not considered. Mechanical control measure could be possible
to control weeds whereas invasive plants were pulled out manually, or by machine. However, growth
of Ludwigia amd Lemna were challenged by this removal activity; Azolla and Argeratum were more
or less affected whereas Eichhornia, Leersia and Cyperus were not affected by this measure.Link for e-copy: https://afu.edu.np/sites/default/files/An_assessment_on_abundance_of_aquatic_inv [...]
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 225-230 p.[article] An assessment on abundance of aquatic invasive plants and their management in Beeshazar lake, Chitwan [printed text] / A. Sharma, Author ; S. Bhattarai, Author ; B. Bhatta, Author . - 2018 . - 225-230 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 225-230 p.
Keywords: Aquatic invasive species, beeshazar lake, frequency, abundance, management Abstract: Biological invasion have been a serious threat to global biodiversity, leading to global environmental
change. These scenarios are well reflected even in the protected lakes. Invasion by the alien species
has been the second leading problem, first being draining the water in Beeshazar Lake, Chitwan.
The excessive growth of these species is probably due to the high nutrients level in the lake. Under
these circumstances, this study was carried out to prepare checklist of alien invasive species, appraise
species-wise status of aquatic invasive species, and document existing practices for controlling them
in the Beeshazar Lake, Chitwan. Systematic sampling was used in which 39 plots, each with size of
1m × 1m, to count the grass species, were laid out at 58m interval. This process was facilitated by
Arc GIS software. Frequency, relative frequency, and abundance of species were calculated to find
the status of species. A total of six species were recorded among which Eichhornia was the most
frequent (F=79.4; RF=35.6) and abundant, (A=18). As this research was done during dry season,
species found during wet season were not considered. Mechanical control measure could be possible
to control weeds whereas invasive plants were pulled out manually, or by machine. However, growth
of Ludwigia amd Lemna were challenged by this removal activity; Azolla and Argeratum were more
or less affected whereas Eichhornia, Leersia and Cyperus were not affected by this measure.Link for e-copy: https://afu.edu.np/sites/default/files/An_assessment_on_abundance_of_aquatic_inv [...]
Title : Carbon stocks in Shorea robusta and Pinus roxburghii forests in Makawanpur district of Nepal Material Type: printed text Authors: Parmod Ghimire, Author ; Gandhiv Kafle, Author ; B. Bhatta, Author Publication Date: 2018 Article on page: 241-248 p. Languages : English (eng) Keywords: Carbon stock, forest, Nepal, climate change Abstract: Forests are natural carbon sink, and play an important role in sequestrating the atmospheric carbon
into biomass and soil. As both carbon sources and sinks, they have the potential to form important
components to combat global climate change. The study was carried out in Shorea robusta forest in
tropical region and Pinus roxburghii forest in sub-tropical region of Makawanpur district, Nepal. The
inventory for estimating above and below ground biomass of forest was carried out using stratified
random sampling. Forest biomass was calculated using standard allometric models. Soil samples
were taken from soil profile up to 60 cm depth at the interval of 20 cm. Walkey and Black method
(1934) was used for measuring soil organic carbon. Total biomass carbon in Shorea robusta and Pinus
roxburghii forest was 170.75t/ha and 144.96 t/ha, respectively. Soil carbon sequestration in Shorea
robusta and Pinus roxburghii forest was 58.82 and 43.94 t/ha, respectively. Total carbon sequestration
in Shorea robusta forest was 1.21 times higher than in the Pinus roxburghii forest. Shorea robusta and
Pinus roxburghii forests have found potentiality in contributing to the global goal of climate change
mitigation through storage of carbon, hence wise use and sustainable management of forest resources
are recommended.Link for e-copy: https://afu.edu.np/sites/default/files/Carbon_stocks_in_Shorea_robusta_and_Pinus [...]
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 241-248 p.[article] Carbon stocks in Shorea robusta and Pinus roxburghii forests in Makawanpur district of Nepal [printed text] / Parmod Ghimire, Author ; Gandhiv Kafle, Author ; B. Bhatta, Author . - 2018 . - 241-248 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 241-248 p.
Keywords: Carbon stock, forest, Nepal, climate change Abstract: Forests are natural carbon sink, and play an important role in sequestrating the atmospheric carbon
into biomass and soil. As both carbon sources and sinks, they have the potential to form important
components to combat global climate change. The study was carried out in Shorea robusta forest in
tropical region and Pinus roxburghii forest in sub-tropical region of Makawanpur district, Nepal. The
inventory for estimating above and below ground biomass of forest was carried out using stratified
random sampling. Forest biomass was calculated using standard allometric models. Soil samples
were taken from soil profile up to 60 cm depth at the interval of 20 cm. Walkey and Black method
(1934) was used for measuring soil organic carbon. Total biomass carbon in Shorea robusta and Pinus
roxburghii forest was 170.75t/ha and 144.96 t/ha, respectively. Soil carbon sequestration in Shorea
robusta and Pinus roxburghii forest was 58.82 and 43.94 t/ha, respectively. Total carbon sequestration
in Shorea robusta forest was 1.21 times higher than in the Pinus roxburghii forest. Shorea robusta and
Pinus roxburghii forests have found potentiality in contributing to the global goal of climate change
mitigation through storage of carbon, hence wise use and sustainable management of forest resources
are recommended.Link for e-copy: https://afu.edu.np/sites/default/files/Carbon_stocks_in_Shorea_robusta_and_Pinus [...]
Title : Leaf litter decomposition and weight loss pattern of five tropical tree species | S. Bhattarai and B. Bhatta Material Type: printed text Authors: S. Bhattarai, Author ; B. Bhatta, Author Publication Date: 2020 Article on page: 125-131 p. Languages : English (eng) Keywords: Leaf litter decomposition in terrestrial ecosystems has a major role in recycling the nutrients to the soil. Various biotic(microorganisms) and abiotic (temperature, rainfall, humidity, seasonal variations) factors affect the rate of litter decomposition.This paper aims to compare leaf litter decomposition and weight loss pattern of five tropical tree species, and assess the effectof temperature and rainfall to the decomposition. A leaf litter bag method was used to assess the decomposition pattern forone year. Both decomposition rate constant (k), and weight loss were highest for Mallotus philippensis (% weight loss =73.49 k = 0.33) and lowest for Shorea robusta (% weight loss = 54.01 k = 0.18). The study showed a significant positivecorrelation between decomposition rate constant (k) and temperature (p = 0.000 r = 0.54) and rainfall (p = 0.000 r = 0.51).The rate of leaf litter decomposition is primarily governed by biological organisms which in turn, get largely affected byclimatic condition, especially temperature and precipitation, and litter quality. Thus, there is a need to analyze properties of leaf litter while using them as compost to get better production. Abstract: Leaf litter decomposition in terrestrial ecosystems has a major role in recycling the nutrients to the soil. Various biotic
(microorganisms) and abiotic (temperature, rainfall, humidity, seasonal variations) factors affect the rate of litter decomposition.
This paper aims to compare leaf litter decomposition and weight loss pattern of five tropical tree species, and assess the effect
of temperature and rainfall to the decomposition. A leaf litter bag method was used to assess the decomposition pattern for
one year. Both decomposition rate constant (k), and weight loss were highest for Mallotus philippensis (% weight loss =
73.49; k = 0.33) and lowest for Shorea robusta (% weight loss = 54.01; k = 0.18). The study showed a significant positive
correlation between decomposition rate constant (k) and temperature (p = 0.000; r = 0.54) and rainfall (p = 0.000; r = 0.51).
The rate of leaf litter decomposition is primarily governed by biological organisms which in turn, get largely affected by
climatic condition, especially temperature and precipitation, and litter quality. Thus, there is a need to analyze properties of
leaf litter while using them as compost to get better production.Link for e-copy: https://afu.edu.np/sites/default/files/14.%20Leaf%20litter%20decomposition%20and [...]
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 125-131 p.[article] Leaf litter decomposition and weight loss pattern of five tropical tree species | S. Bhattarai and B. Bhatta [printed text] / S. Bhattarai, Author ; B. Bhatta, Author . - 2020 . - 125-131 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 125-131 p.
