Knowledge Resource Center for Ecological Environment in Arid Area
| 布袋沙障对流动沙丘地表风沙和土壤湿度的影响 | |
| 其他题名 | Effect of Hop- pocket Sand Barrier on the Wind and Sand Flow and Soil Moisture of Mobile Dune |
袁立敏1; 高永1 ; 张文军2; 党晓宏1; 胡小龙2; 纳钦3
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| 来源期刊 | 科技导报
 |
| ISSN | 1000-7857 |
| 出版年 | 2014 |
| 卷号 | 32期号:3页码:71-76 |
| 中文摘要 | 为了解布袋沙障对风沙流和土壤湿度的影响,通过测定风速和采集地表0~30 cm输沙,同时对地下0~40 cm土壤含水率进行测试,分别研究1 m*1 m、2 m*2 m、3 m*3 m规格布袋沙障防风效能、粗糙度、输沙量和土壤湿度差异。结果表明,布袋沙障能够有效提高0~30 cm高度范围的防风效能,增加地表粗糙度,显著降低0~30 cm地表输沙量和改变风沙流结构。3种布袋沙障的防风效能顺序为1 m*1 m>2 m*2 m>3 m*3 m,1 m*1 m与其他两种规格布袋沙障的防风效能差异显著(P<0.05),2 m*2 m和3 m*3 m规格布袋沙障的防风效能间无显著差异;粗糙度顺序为1 m*1 m>2 m*2 m>3 m*3 m>对照,1 m*1 m、2 m*2 m和3 m*3 m规格沙障粗糙度分别比对照高91.31%、78.88%和76.26%,差异极显著(p<0.001);0~30 cm输沙量顺序为对照>3 m*3 m>2 m*2 m>1 m*1 m,对照的0~30 cm输沙量达到了71.43 g/(min·cm2),是布袋沙障的32.98倍,3种规格布袋沙障与对照沙丘2~10 cm和0~1 cm两层沙量的比值lambda均大于1,说明在监测期内地表均处于风蚀状态。土壤含水率顺序为对照>3 m*3 m>2 m*2 m>1 m*1 m,在0~20 cm土层此变化趋势明显,对照的土壤含水率分别比3 m*3 m、2 m*2 m、1 m*1 m规格沙障样地的土壤含水率高55.15%、58.63%和67.45%。 |
| 英文摘要 | To understand the influence of hop-pocket sand barrier on wind and sand flow and soil moisture, the wind-break potency, surface roughness, parameters of sediment transport rates and soil moisture of 1 m*1 m, 2 m*2 m, 3 m*3 m square hop-pocket sand barrier were studied through anemometry, sand collection of ground 30 cm and soil moisture of underground 0-40 cm on sand dune. The results showed that hop-pocket sand barrier can improve the wind-break potency of 0-30 cm height range effectively, increasing the sand dune surface roughness, reducing the sediment discharge of 0-30 cm height range significantly. The order of wind-break potency of hop-pocket sand barrier was 1 m*1 m>2 m*2 m>3 m*3 m. The difference of 1 m*1 m was significant compared to 2 m* 2 m and 3 m*3 m, and there was no significant difference between 2 m*2 m and 3 m*3 m. The order of surface roughness was 1 m* 1 m>2 m*2 m>3 m*3 m>CK; the roughness of 1 m*1 m, 2 m*2 m and 3 m*3 m were increased by 91.31%, 78.88% and 76.26% higher than the control and the differences were significant (P<0.001). 0-30 cm sediment discharge of the control reached 71.43 g/(min·cm2), and it was 32.98 times more than hop-pocket sand barrier.lambda eigenvalues was the sediment discharge ratio of 2-10 cm and 0- 1 cm of hop- pocket sand barrier and the control, and lambda >1, deducing that their surfaces were wind eroded during the monitoring period. The order of soil moisture was CK>3 m*3 m>2 m*2 m>1 m*1 m, the trend of 0-20 cm layer was obvious, and soil moisture of the control was increased by 55.10%, 58.63% and 67.45% higher than 3 m*3 m、2 m*2 m and 1 m*1 m hop-pocket sand barrier. |
| 中文关键词 | 库布齐沙漠 ; 布袋沙障 ; 防风效能 ; 地表粗糙度 ; 输沙量 ; 土壤含水率 |
| 英文关键词 | Kubuqi Desert hop-pocket sand barrier wind-break potency surface roughness sediment discharge soil moisture |
| 语种 | 中文 |
| 国家 | 中国 |
| 收录类别 | CSCD |
| WOS类目 | AGRICULTURE MULTIDISCIPLINARY ; AGRICULTURAL ENGINEERING |
| WOS研究方向 | Agriculture |
| CSCD记录号 | CSCD:5050482 |
| 来源机构 | 内蒙古农业大学 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/231391 |
| 作者单位 | 1.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010018, 中国; 2.内蒙古自治区林业科学研究院, 呼和浩特, 内蒙古 010010, 中国; 3.内蒙古自治区农牧业科学研究院, 呼和浩特, 内蒙古 010031, 中国 |
| 推荐引用方式 GB/T 7714 | 袁立敏,高永,张文军,等. 布袋沙障对流动沙丘地表风沙和土壤湿度的影响[J]. 内蒙古农业大学,2014,32(3):71-76. |
| APA | 袁立敏,高永,张文军,党晓宏,胡小龙,&纳钦.(2014).布袋沙障对流动沙丘地表风沙和土壤湿度的影响.科技导报,32(3),71-76. |
| MLA | 袁立敏,et al."布袋沙障对流动沙丘地表风沙和土壤湿度的影响".科技导报 32.3(2014):71-76. |
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