Symbiosis of marshes and permafrost in Da and Xiao Hinggan Mountains in northeastern China
文献类型：期刊论文
| 作者 | Jin Huijun1,2; Sun Guangyou3; Yu Shaopeng1,2,4; Jin Rui1,2; He Ruixia1,2 |
| 刊名 | CHINESE GEOGRAPHICAL SCIENCE
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 18期号:1页码:62-69 |
| ISSN号 | 1002-0063 |
| 关键词 | marsh permafrost symbiosis thermal offset active layer Da and Xiao Hinggan Mountains |
| DOI | 10.1007/s11769-008-0062-0 |
| 通讯作者 | Jin Huijun(hjjin@lzb.ac.cn) |
| 英文摘要 | Recently, the degradation of permafrost and marsh environments in the Da and Xiao Hinggan Mountains has become a great concern as more human activities and pronounced climate warming were observed during the past 30 years and projected for the near future. The distribution patterns and development mechanisms of the permafrost and marshes have been examined both in theories and in field observations, in order to better understand the symbiosis of permafrost and marshes. The permafrost and marshes in the Da and Xiao Hinggan Mountains display discernible zonations in latitude and elevation. The marsh vegetation canopy, litter and peat soil have good thermal insulation properties for the underlying permafrost, resulting in a thermal offset of 3 degrees C to 4 degrees C and subsequently suppressing soil temperature. In addition, the much higher thermal conductivity of frozen and ice-rich peat in the active layer is conducive to the development or in favor of the protection of permafrost due to the semi-conductor properties of the soils overlying the permafrost. On the other hand, because permafrost is almost impervious, the osmosis of water in marsh soils can be effectively reduced, timely providing water supplies for helophytes growth or germination in spring. In the Da and Xiao Hinggan Mountains, the permafrost degradation has been accelerating due to the marked climate warming, ever increasing human activities, and the resultant eco-environmental changes. Since the permafrost and marsh environments are symbiotic and interdependent, they need to be managed or protected in a well-coordinated and integrated way. |
| 收录类别 | SCI |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000254708100009 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556027 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Jin Huijun |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soils Engn Cold & Arid Reg E, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Engn Res Inst, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, NE Inst Geog & Agroecol, Changchun 130012, Peoples R China 4.Harbin Coll, Dept Geog, Harbin 150086, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin Huijun,Sun Guangyou,Yu Shaopeng,et al. Symbiosis of marshes and permafrost in Da and Xiao Hinggan Mountains in northeastern China[J]. CHINESE GEOGRAPHICAL SCIENCE,2008,18(1):62-69. |
| APA | Jin Huijun,Sun Guangyou,Yu Shaopeng,Jin Rui,&He Ruixia.(2008).Symbiosis of marshes and permafrost in Da and Xiao Hinggan Mountains in northeastern China.CHINESE GEOGRAPHICAL SCIENCE,18(1),62-69. |
| MLA | Jin Huijun,et al."Symbiosis of marshes and permafrost in Da and Xiao Hinggan Mountains in northeastern China".CHINESE GEOGRAPHICAL SCIENCE 18.1(2008):62-69. |
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来源：寒区旱区环境与工程研究所
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