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Transitional Patterns of Vegetation in Reclaimed Land Applied with Solidified Sewage Sludge
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  • Journal title : KOREAN JOURNAL OF CROP SCIENCE
  • Volume 60, Issue 3,  2015, pp.381-387
  • Publisher : The Korean Society of Crop Science
  • DOI : 10.7740/kjcs.2015.60.3.381
 Title & Authors
Transitional Patterns of Vegetation in Reclaimed Land Applied with Solidified Sewage Sludge
Um, Kyoung Ran; Jang, Yun-Hui; An, Gi Hong; Cha, Young-Lok; Yu, Gyeong-Dan; Lee, Ji-Eun; Moon, Youn-Ho; Ahn, Joung Woong;
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 Abstract
This study was firstly conducted to investigate changes of vegetation and soil characteristics in reclaimed land applied with solidified sewage sludge for the cultivation of bioenergy crops. Each vegetation survey site was approximately on the inside of each experimental plot that consisted of 50% (A-1), 30% (A-2), 15% (A-3), and 5% (A-4) mixture of solidified sewage sludge, and original reclaimed soil (ORS). After the application of solidified sewage sludge, we monitored the changes of vegetation and soil properties for three years. In first year, soil pH, electrical conductivity (EC) and exchangeable content was 9.4~10.8, , and , respectively, while three years later, it decreased to 8.1~8.4, , and , respectively. These results indicated that several of soil chemical elements which have nagative impacts on the plant growth in the plots of mixtures of solidified sewage sludge, steadily declined as the years go by. The vegetations in each survey site were recorded as 6 families and 12 species in 2014, while the vegetations were not occurred at all survey sites in 2012, and only halophytes as Phragmites australis and Suaeda asparagoides were observed in 2013. Diversity of vegetation, which was calculated by shannon index (H`), increased as the season progressed at each experimental plot applied with solidified sewage sludge. In original reclaimed soil, however, there was showed the high community similarity of vegetation due to the fact that P. australis and S. asparagoides were only occurred for survey periods.
 Keywords
reclaimed soil;solidified sewage sludge;shannon index;vegetation;
 Language
Korean
 Cited by
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