2014, Vol.23, No.2

Journal of Environmental Impact Assessment 2023 KCI Impact Factor : 0.51

pISSN : 1225-7184
https://journal.kci.go.kr/kseia

In order to analyze environmental impact of livestock manure and organic fertilizers, this studyinvestigated livestock-breeding and pollution loads, the status of individual and public livestockmanure treatment facilities, and the status of production, supply and components of compost andliquid fertilizers in the Nonsan area. Also, on a trial basis, this study investigated the life cycle ofthe environmental impact of livestock manure and its organic fertilizers on stream, groundwater,and agricultural soil. The results are as follows. Firstly, were detected the range of 0.13~1.32 μg/L of As, 0.004~0.467 μg/L of Cd and 0.5~9.2μg/L of Pb as a harmful substances which show lower concentrations than person preservationcriteria of water qualities and aquatic ecosystem. However, it is not clear that heavy metals affectenvironment such as stream, groundwater and agricultural soil. Secondly, this influence couldchange according to investigation time and treatment efficiency. As were detected large amountsof persistent organic pollutants(e.g. 14.24~38.47 μg/L of acetylsalicylic acid, 1.17~2.96 μg/L ofsulfamethazine, and 2.25~174.09 μg/L of sulfathiazole) in effluent from livestock farms and smallamounts of sulfathiazole(ND~1.63 μg/L) in the stream, it is necessary to monitor POPs atindividual and public livestock manure treatment facilities. However, significant environmentalimpact did not appear at groundwater and agricultural soil in the test area supplied with liquidfertilizers. These results could be applied to investigate the environmental impact of livestock manurethrough a comprehensive livestock manure management information system.

This study analyzed runoff characteristics of non-point sources pollutant and evaluated removalof pollution by BMP(Best Management Practice) using BASINS/WinHSPF model. Hourlymeterological data including input data was provided from 2010 to 2011 year to run HSPF modelin Miho stream watershed. As the results of calibration and validation of the model, the modelcould be successfully performed to simulate the flow and water quality parameters. Theapprehensive area of non-point source pollution was chosen by non-point source pollution perarea of a tributary to the Miho stream and applied constructed wetland in area chosen. Threescenarios were based on installation area of an constructed wetland and HSPF model would beapplied to estimate the pollutant removals through the constructed wetland. The removal rates ofpollutants through the constructed wetland were estimated with the runoff and water qualityparameters by the comparisons of before and after the constructed wetland application.

The research was carried out in order to find climate factors which determine the distributionof Neolitsea sericea, and the potential habitats (PHs) under the current climate and three climatechange scenario by using species distribution models (SDMs). Four climate factors; the minimumtemperature of the coldest month (TMC), the warmth index (WI), summer precipitation (PRS),and winter precipition (PRW) : were used as independent variables for the model. Three generalcirculation models under A1B emission scenarios were used as future climate scenarios for the2050s (2040~2069) and 2080s (2070~2099). Highly accurate SDMs were obtained for N. sericea. Themodel of distribution for N. sericea constructed by SDMs showed that minimum temperature ofthe coldest month (TMC) is a major climate factor in determining the distribution of N. sericea. Thearea above the -4.4℃ of TMC revealed high occurrence probability of the N. sericea. Future PHsfor N. sericea were projected to increase respectively by 4 times, 6.4 times of current PHs under2050s and 2080s. It is expected that the potential of N. sericea habitats is expanded gradually. N. sericea is applicable as indicator species for monitoring in the Korean Peninsula. N. sericea isnecessary to be monitored of potential habitats.