An 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)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 2 (2018) . - 225-230 p. 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 [...] [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 [...]