Non-point source pollutant load reductions were calculated using the Hydrologic Simulation Program-Fortran (HSPF) model under the assumption that landuse pattern was changed according to land purchases. Upon the simulation of non-point pollutant and areas with high land purchase ratios to select a buffer zone, the Namgang dam Reach 11, Imha dam Reach 10, and the Reach 136 watershed of the main river were found to rank high for the construction of buffer zones. Assuming that the forms of the purchased lands were changed to wetlands, biological oxygen demand (BOD) loads were changed through the HSPF model. No changes of BOD were present in the Namgang dam and the Imha dam watersheds. BOD loads in Reach 136 according to landuse change were analyzed through a flow duration analysis based on the total maximum daily loads of the United States. The flow duration analyses undertaken to examine changes in BOD of main river Reach 136 watershed indicated a shift of 0.64 kg/d from 3.16 to 2.52 during high flow. The change of BOD under the conditions of moist, mid-range and dry were 11.9%, 9% and 4.5%. At the low flow condition, the variation range in the BOD load was from 0.58 kg/d to 0.41 kg/d.
Proceedings of the Korean Society for Agricultural Machinery Conference
/
1993.10a
/
pp.538-545
/
1993
Individual farming involving small land parcel (0.5 to 1.0ha) is declining because it is uneconomic and unable to incorporate modern technological innovation to improve its production efficiency. A centrally managed medium scale mechanised rice share farming was implemented at Permatang Pauh, Sebeerang Perai, Malaysia in 1988-1991 for eight seasons on a contiguous 57 ha rice land rented from 100 owners. Ten participants were chosen to participate in this project which perpetuated from revolving fund of MR 165.000. The objective of the project was to overcome problem of production efficiency and to provide a stable income to farmers operating on a medium and full time basis. Mechanisation was given prime emphasis to optime and reduce labour requirement and meeting the targeted crop scheduling. Direct seeding and mechanical transplanting methods of crop establishment were adopted. Land preparations, crop establishment and crop care were done using machineries purchased by the group. Selected participants were trained to operate machineries which composed 2 and 4 wheel tractors, mechanical transplanters, motorised seeders and sprayers. Harvesting and transportation of rice to the mills were done on contractual basis using combine harvesters and bulk handling via 3-4 ton lorries respectively. The net clean yield (less 10-20 percent deduction at rice mills) obtained in such project has contributed to stabilise the production and income of participating farmers.
Journal of the Korean Society of Environmental Restoration Technology
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v.17
no.4
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pp.29-41
/
2014
The Korean government has purchased land properties alongside any significant water bodies before setting up the buffers to secure water qualities. Since the annual budgets are limited, however, there has always been the issue of which land parcels ought to be given the priority. Therefore, this study aims to develop efficient mechanism for land acquisition priorities in stream corridors that would ultimately be vegetated for riparian buffer zones. The criteria of land acquisition priority were driven through literary review along with experts' advice. The relative weights of their value and priorities for each criterion were computed using the Analytical Hierarchy Process(AHP) method. Major findings of the study are as follows: 1. The decision-making structural model for land acquisition priority focuses mainly on the reduction of non-point source pollutants(NSPs). This fact is highly associated with natural and physical conditions and land use types of surrounding areas. The criteria were classified into two categories-NSPs runoff areas and potential NSPs runoff areas. 2. Land acquisition priority weights derived for NSPs runoff areas and potential NSPs runoff areas were 0.862 and 0.138, respectively. This implicates that much higher priority should be given to the land parcels with NSPs runoff areas. 3. Weights and priorities of sub-criteria suggested from this study include: proximity to the streams(0.460), land cover(0.189), soil permeability(0.117), topographical slope(0.096), proximity to the roads(0.058), land-use types(0.036), visibility to the streams(0.032), and the land price(0.012). This order of importance suggests, as one can expect, that it is better to purchase land parcels that are adjacent to the streams. 4. A standard scoring system including the criteria and weights for land acquisition priority was developed which would likely to allow expedited decision making and easy quantification for priority evaluation due to the utilization of measurable spatial data. Further studies focusing on both point and non-point pollutants and GIS-based spatial analysis and mapping of land acquisition priority are needed.
Background and objective: The purpose of this study is to investigate the ecological status of six areas around Geumgang River that used to be farmlands before they were restored as a riverine ecobelt. This study aims to analyze the correlation between the location environment and ecological status of the sites to identify the environmental factors affecting them. Methods: The sites are classified into four types according to restoration: terraced paddy fields, flat paddy fields, artificial wetland, and landscape forest. The survey items were divided into land use status, plant ecology, and animal ecology. Results: In terms of plant ecology, terraced paddy fields showed favorable naturality with the rate of native species above 90% and the naturalization index below 10%. In terms of animal ecology, the total number of species found in these areas was biggest in terraced paddy fields, followed by flat paddy fields, artificial wetland, and landscape forest. Regarding species diversity, terraced paddy fields also showed abundant species with an average of 1.05 to 1.09. The results of the correlation analysis showed that the forest area around the sites had the most significant effect on species diversity. The grassland and open water area showed a positive correlation with the total number of animal species and the number of dragonflies, confirming that the marshy grassland had a positive effect. As the cultivated land and urbanized area around the sites increased, it had a negative effect on the distribution of native species and the number of animal species that appeared, and a positive effect on the naturalization index. Conclusion: It is necessary to establish preemption and restoration plans for sites such as grasslands adjacent to the forest and terraced paddy fields in order to promote resilience of the diverse species returning to the purchased lands.
Journal of the Korean Institute of Landscape Architecture
/
v.48
no.3
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pp.45-53
/
2020
With the increasing attention of the international community on climate change and biodiversity promotion programmes, the Korean government and public agencies are trying to protect and restore the ecosystem of areas protected by law, such as waterfronts, by acquiring private land. However, the inadequate purchase system has caused various problems. In this study, an efficient and systematic land purchase system was developed through ecological evaluation, focusing on the ecological and landscape conservation areas of the Donggang basin. The ecological evaluation was developed by integrating parcel-level evaluation and regional-specific evaluation, and the overall level of ecological function was established and finalized through on-site verification. As a result of verifying the purchase land of 88 parcels, it showed a relatively high agreement of more than 85.2%, and the rest of parcels (non-agreement) were considered to have had an impact on vegetation, crop harvesting, etc. due to seasonal differences in ecological evaluation and field verification. The purchasing system was ranked according to the ecological evaluation grade based on the endangered species and the distance from the core ecosystem. As a result, the purchase priority was systematically drawn up to the 5th rank for a total of 68 parcels for the private lands of Geoeun-ri, Munsan-ri, Deokcheon-ri, Unchi-ri, Gumam-ri, and Suji-ri. This study is expected to contribute to the preservation, restoration and ecological management of purchased land in the protected area in the future by establishing and proposing a systematic land purchase system based on ecological evaluation.
This review presents a series of Key Performance Indicators (KPI) to assist Asian smallholder dairy farmers in identifying the possible causes for their poor farm performance and profitability. When assessing farm profitability, these indicators can be split into two types, those diagnosing problems with feeding management and those indicating poor herd management. As home grown forage is generally cheaper to source than purchased forage, the more produced on farm, the better. Too many stock on limited land is a common feature on Asian dairy small holdings. Unlike other classes of livestock, milking cows have very high nutrient requirements, therefore high quality forages and concentrates are essential for profitable dairying. Milk income less feed cost is one of the simplest and easy to measure indicators of farm profitability and is also quick to respond to small changes in farm practices. Problems with herd management can be diagnosed using measures such as the proportion of cows actually milking in the herd or their peak yield and persistency of production. There are also simple indicators of herd reproductive performance and of health and growth of young stock that assist in searching for the underlying causes of poor farm profitability.
A built space reflects its society's philosophy, culture and technology of its time period. The study explores interrelation between Toey-Gae's 'Kyung' (Piety) philosophy and architectural designs of the 'Do-San' Sau-Dang (School). Toey-Gae is a leading scholar during Chosun Dynasty who built the Do-San School to teach and showcase Sung Confucianism. He is known for his teachings and practice of 'Kyung' philosophy in all aspects of his life including his work and designs. It is also known that he personally picked and purchased the land best suited to display spirit of 'kyung' philosophy while directing the base design and construction of the building. His attentions to details are evident in his choice of city, building site, and way he arrange his designs within the natural environment. Thus, we can safely presuppose the design of Do-San Sau-Dang was created following Toey-Gae's ideology in its buildings and environment. By examining Toey-Gae's philosophy of 'Kyung' through his writings, physical location and actual designs of Do-San Sau-Dang, we can understand how this ancient philosophical ideology and thoughts were translated to a physical form and its space. The study will also explore the importance of such ideology in the society at the time and how it influenced physical and mental activities of its people.
The purposes of this study was to examine Chinese consumers's perception toward Korean fashion brands. Especially, this study aimed to compare the Chinese consumers in three local groups (Beijing, Shanghai, & Yangji). The subjects used for this study were one hundred ninety-six participants(male; 110, female; 86) in 20s age who live in China. For data analysis, descriptive statistics, Cronbach's alpha, and t-test were used. Cronbach's alpha test revealed that all instruments which were used for this study had over 0.85. As the results, first, 67.9% of Chinese consumers perceived Korean brands correctly as Korean brands. Also, 42.5% of Chinese participants had purchased Korean fashion brand products such as Teenie Weenie or E-land. Second, there were not significant differences in brand attitudes among three group participants. However, there was a significant difference in 'brand preference' factor, one of three brand attitudes, between two ethnic groups. Finally, there were not signifiant differences in brand image, while there was a significant difference in intelligent brand image, one of 4 brand image factors, between two ethnic groups. These results of this study would be very useful for Korean fashion brand marketers in order to understand Chinese fashion consumers more details, and provide more efficient fashion marketing strategies.
Bongik-dong, Kwonnong-dong, Ikseon-dong and Nakwon-dong are areas around Donhwamun-ro in Seoul. These residential areas began to be developed collectively from the 1920s and the construction period was the fastest among hanok residences collectively formed in urban center. At that time, houses were developed with high density. In the 1920s, many medium-sized plots of less than 3,300m2 were distributed around Donhwamun-ro. Private developers such as Jeong Se-kwon(Konyangsa), Shin Tae-jong, and Yoon Heung-rim, who were active at the time, purchased medium-sized plots. Developers sold out the land directly or after constructing Hanok on the divided plot and then selling them. This method of developing hanok residences by private developers in the 1920s have influenced on hanok residences which began to be developed after the 1930s. Currently, many urban Hanoks still remain in areas around Donhwamun-ro. The initial aspects of the hanok development in the 1920s could be grasped through blocks, plot division, alleys, row house Hanok etc around Donhwamun-ro.
This study is first aimed at identifying the possibility of labour saving and production cost decreasing in rice production with respect to seed broad casting technology. Comparison of labour inputs and production costs of rice in-between USA and Korea and recommendation of policy guidelines for the continous rice cultivation are the second objective of this study. Under the WTO system, rice enterprice is the most vulnerable crop in the sense of labour productivity and price competitiveness in the international market. How to adapt labour saving technology and how to decrease production costs are the most imminent problems to be solved in rice production. To achieve the objectives, survey on nine rice enterprice farms were made in Daeho tidal farmland with respect to the size of farm, labour inputs, productivity, farm mechanization and farm land base development. The existing data on labour saving technology by seed broadcasting which had surveyed by Rural Development Administration were collected to compare the surveyed data from Daeho tidal farm land The study results and policy recommendation are summarized as follows; 1. Labour requirements per 10a for rice enterprise farms with seed broadcasting and with transplanting were estimated 11.4 and 18.5hours respectively. 'This above labour inputs were equivalent to 1/3-1/5 of the national average labour inputs of 53.6 hours which were included transplanting and harvesting by machinery. Considering the labour requirement of 1.7 hours per 10a for the USA rice production, Korea rice culture has possibility to decrease labour demand upto USA level of labour inputs. 2. Production cost of rice in Korea were estimated US$4,181 per ha which were higher than that of USA by 3.00 times and production costs per ton were shown as US$313 for USA rice and US$1,018 for Korean rice. 3. Land productivity of rice per 10a in America was reached to 4,325kg and the counterpart of Korea was about 4,181kg in recent year. In the sense of land productivity, both yields of rice were comparable. 4. The price of japonica type rice similar to Korean traditional rice in international market in 1994 was f.o.b US$466 per ton which was equivalent to import parity price of US$830 per ton in domestic market. The price of rice purchased by Korean G't and received by farmers were amounted to US$ 2,013 and US$ 1,663 respectively in the same year. Domestic prices mentioned above were higher than the import parity price as US$830 by 2.0-2.4 times. 5. American rice production competitive to Korean rice was equivalent to 17,012 thousand tons, 1.28% of the world production of rice in 1991 and consumption of rice in America was amounted to 2,633 thousand tons. Exportable quantity of USA rice were estimated as 4,379 thousand tons of which 52.3%, 2,300 thousand tons, were exported indeed in the same year. 6. The quantity of Korean rice produced in 1991 was estimated 1.00% of the world production. The world amount of rice exported in 1991 was reached to 2.45% of the world production of which 34.2% was occupied by USA The remaining quantities of world exported rice were dominated by Tiland, Pakistan and Vietnam where produced indica variety. 7. Under the given technology, labour inputs per 10a for rice production could be possible to save by 70% of the national average labour requirement of 53.6 hours through implmenting complete farm mechanization with land consolidation and on-farm development and improvement of fanning practices like seedbroad casting txchnology etc. On the other hand, prduction costs of rice could be decreased by 10% rather than 49% as target indicated in the Rural Development Counter Measures of Korean Government in 1994 owing to increasing farm mechanization cost and interest on land service with high price. Accordingly production cost of rice per kg could be decreased only by 10% of the 1994 production cost. 8. Rice policy of Korean government in the future should take into account the labour saving technology to solve labour shortage in rural area and to enhance off-farm incomes by creating job opportunities in agro-industrial zones and special production area. On account of the staple food and main energy source for people's health, rice production even encountered vulnerable economic settings should be continued without price distortion policies and discouraging farmer's intention to cultivate rice by importing institutionally the direct income subsidy system.
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