| Rapid development of cyanobacterial crust in the field for combating desertification | |
| Park, Chan-Ho1; Li, Xin Rong2; Zhao, Yang2; Jia, Rong Liang2; Hur, Jae-Seoun1 | |
| 刊名 | PLOS ONE
 |
| 2017-06-23 | |
| 卷号 | 12期号:6页码:20 |
| ISSN号 | 1932-6203 |
| DOI | 10.1371/journal.pone.0179903 |
| 通讯作者 | Hur, Jae-Seoun(jshur1@sunchon.ac.kr) |
| 英文摘要 | Desertification is currently a major concern, and vast regions have already been devastated in the arid zones of many countries. Combined application of cyanobacteria with soil fixing chemicals is a novel method of restoring desertified areas. Three cyanobacteria, Nostoc sp. Vaucher ex Bornet & Flahault, Phormidium sp. Kutzing ex Gomont and Scytonema arcan-geli Bornet ex Flahault were isolated and tested in this study. Tacki-Spray (TM) (TKS7), which consists of bio-polysaccharides and tackifiers, was used as a soil fixing agent. In addition, superabsorbent polymer (SAP) was applied to the soil as a water-holding material and nutrient supplement. Application of cyanobacteria with superabsorbent polymer and TKS7 (CST) remarkably improved macro-aggregate stability against water and erodibility against wind after 12 months of inoculation when compared to the control soil. The mean weight diameter and threshold friction velocity of the CST treated soil were found to be 75% and 88% of those of the approximately 20-year-old natural cyanobacterial crust (N-BSC), respectively, while these values were 68% and 73% of those of the N-BSC soil after a single treatment of cyanobacteria alone (CY). Interestingly, biological activities of CST were similar to those of CY. Total carbohydrate contents, cyanobacterial biomass, microbial biomass, soil respiration, carbon fixation and effective quantum yield of CST treated soil were enhanced by 50-100% of the N-BSC, while those of control soil were negligible. Our results suggest that combined application of cyanobacteria with soil fixing chemicals can rapidly develop cyanobacterial crust formation in the field within 12 months. The physical properties and biological activities of the inoculated cyanobacterial crust were stable during the study period. The novel method presented herein serves as another approach for combating desertification in arid regions. |
| 收录类别 | SCI |
| WOS关键词 | BIOLOGICAL SOIL CRUSTS ; MOJAVE DESERT ; HEATED SOILS ; DISTURBANCE ; EROSION ; INOCULATION ; RECOVERY ; MICROSTRUCTURE ; COMMUNITIES ; SYSTEMS |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| 出版者 | PUBLIC LIBRARY SCIENCE |
| WOS记录号 | WOS:000404145100048 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2557666 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Hur, Jae-Seoun |
| 作者单位 | 1.Sunchon Natl Univ, Korean Lichen Res Inst, 255 Jungang Ro, Sunchon, South Korea 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Park, Chan-Ho,Li, Xin Rong,Zhao, Yang,et al. Rapid development of cyanobacterial crust in the field for combating desertification[J]. PLOS ONE,2017,12(6):20. |
| APA | Park, Chan-Ho,Li, Xin Rong,Zhao, Yang,Jia, Rong Liang,&Hur, Jae-Seoun.(2017).Rapid development of cyanobacterial crust in the field for combating desertification.PLOS ONE,12(6),20. |
| MLA | Park, Chan-Ho,et al."Rapid development of cyanobacterial crust in the field for combating desertification".PLOS ONE 12.6(2017):20. |
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