Combating wind erosion through soil stabilization under simulated wind flow condition -Case of Kuwai

来源 :国际水土保持研究(英文) | 被引量 : 0次 | 上传用户:lyhl1949
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The soil survey of Kuwait has revealed the landscapes dominated by loose sandy material, that are vulnerable to wind erosion. Globally three modes of soil particle movement (creep, saltation & sus-pension) by wind have been recognized. To evaluate these modes in the deserts of Kuwait, sixty surface soil samples were collected and analyzed for particle sizes to quantify relative occurrence of modes of particle movement in the deserts of Kuwait. This analysis revealed distribution of particles in the size ranges, as follows: saltation (70%) > Creep (20%) > Suspension (10%) confirming saltation is the main mode of soil movement. This has provided basic information to set up a pilot scale experiment to reduce the wind erosion rate through sand stabilization using various sand binding products in three treat-ments; T1 (native sandy soil); T2 (sand mixed with biochar and animal manure); T3 (sand mixed with biochar, animal manure, Urea Formaldehyde (UF), Sulfonated Naphthalene Formaldehyde (SNF), and Poly Vinyl Alcohol (PVA). The results showed that the erosion rate of native sandy soil (T1) has increased from 3.33, 4.77 to 7.35 g/(m2. min) when wind speed was increased from 5, 10 to 15 m/s, respectively. At the same wind speeds, the measured erosion loss was 1.99, 3.07, 5.32 g/(m2. min) in T2 and 1.17, 2.6, 4.24 g/(m2. min) in T3. From these results, it can be concluded that there is a possibility to reduce wind erosion in the deserts of Kuwait through sand stabilization and save the deserts from further degradation.
其他文献
期刊
There are 239,100 gullies in south China, which cause the degradation of ecological system. However, studies on gully development at the regional scale is relat
以葡萄糖为有机物代表,对其在含沙黄河水体中动力学过程进行研究,获得有机物在含沙水体中生物氧化过程可用一级动力学方程描述,生物氧化速率常数与泥沙含量呈正相关,泥沙对有机物
探讨肾病综合征儿童在住院期间表现出的几种心理问题及有效的心理护理干预措施.方法:医护人员在治疗的同时对患儿进行有针对性、有效的心理护理.结果:护理后患儿能够保持良好
期刊
The objective of this study was to examine the impacts of climate and land use changes on wateravailability and sediment loads for a water supply reservoir in n
In semiarid regions, wind and water erosion are serious environmental and ecological problems around world. They have different impacts on soil quality over a r