Knowledge Resource Center for Ecological Environment in Arid Area
A Study on Effectiveness of Ecologic Protection Techniques along Desert Route | |
Chen Ai-Xia | |
通讯作者 | Chen Ai-Xia |
会议名称 | International Conference on Biology, Environment and Chemistry (ICBEC 2010) |
会议日期 | DEC 28-30, 2010 |
会议地点 | Hong Kong, PEOPLES R CHINA |
英文摘要 | The research focuses on applications of ecological protections in the desert route the Sanggendalai similar to Gongzhugeng highway crossing Otindag Sandy land. Some protective measures are brought forward, as sand barriers of low upright grid, sand barriers of tall upright grid, and composite typed sand barriers etc. Furthermore, these sand barriers and their sand breaking effectiveness like soil improvement, vegetation recovery etc are traced by means of field survey. Namely, (1) the low upright sand barriers have raised surface roughness up to 5.64cm, and wind velocity at the near surface (0.25m) within sand barrier reduces to 2.39m/s from previous 6.5m/s, which means the surface windproof efficiency averages to 63.1%; the near surface wind velocity within the high upright sand barrier goes down to 2.7m/s from 6.5m/s, its wind proof efficiency gains 58.5%; the near surface wind velocity within the composite sand barriers downgrades to 4.6m/s from previous 9.5m/s, of its maximum windproof efficiency up to 74.8%. (2) Compared to sand drifting area, the bulk density of soil inside the low and high upright barriers drops by 14.2%, soil porosity rises by 16% and soil water content upward by 77.8% at peak. The same to the increase of soil organic matter, hydrolysable nitrogen, available P content, available K content etc, that illuminate amelioration of local soil because of various sand barriers. (3) The applications of ecologic protections improve the local route environment apparently, 65% similar to 70% of its vegetation coverage fraction in sand drifting area after the highway project in comparison with 5% previously. |
英文关键词 | highway ecology sand barrier sand break effect |
来源出版物 | BIOLOGY, ENVIRONMENT AND CHEMISTRY |
出版年 | 2011 |
页码 | 173-177 |
ISBN | 978-981-08-8642-4 |
出版者 | INT ASSOC COMPUTER SCIENCE & INFORMATION TECHNOLOGY PRESS-IACSIT PRESS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | CPCI-S |
WOS记录号 | WOS:000393717800041 |
WOS类目 | Engineering, Environmental ; Engineering, Chemical |
WOS研究方向 | Engineering |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/299921 |
作者单位 | Changan Univ, Sch Environm Sci & Engn, Xian, Peoples R China |
推荐引用方式 GB/T 7714 | Chen Ai-Xia. A Study on Effectiveness of Ecologic Protection Techniques along Desert Route[C]:INT ASSOC COMPUTER SCIENCE & INFORMATION TECHNOLOGY PRESS-IACSIT PRESS,2011:173-177. |
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