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effectsofaeolianprocessesonnutrientlossfromsurfacesoilsandtheirsignificanceforsandydesertificationinmuusdesertchinaawindtunnelapproach
Lang Lili1; Wang Xun ming1; Wang Guang tao2; Hua Ting2; Wang Hong tao2
2015
Source Publicationjournalofaridland
ISSN1674-6767
Volume7Issue:4Pages:421
AbstractMu Us Desert, a region with high aeolian activity, is at extremely high risk of sandy desertification. Using surface soil samples collected from Mu Us Desert of northern China, we evaluated the effects of aeolian processes on nutrient loss from surface soils by employing wind tunnel experiments. The experiments were conducted using free-stream wind velocities of 14,16,18 and 22 m/s. Our results showed that the fine particles (<50 μm in diameter; 12.28% of all transported materials) carrying large nutrient loadings were exported outside the study area by aeolian processes. After the erodible fine particles were transported away from the soil surfaces at low wind velocity (i.e. 14 m/s), the following relatively high wind velocity (i.e. 22 m/s) did not have any significant effect on nutrient export, because the coefficients of variation for soil organic matter, total phosphorus,total nitrogen and available potassium were usually <5%. Our experimental results confirmed that aeolian processes result in a large amount of nutrient export, and consequently increase the risk of sandy desertification in arid and semi-arid ecosystems.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/121049
Collection中国科学院地理科学与资源研究所
Affiliation1.中国科学院地理科学与资源研究所
2.中国科学院寒区旱区环境与工程研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Lang Lili,Wang Xun ming,Wang Guang tao,et al. effectsofaeolianprocessesonnutrientlossfromsurfacesoilsandtheirsignificanceforsandydesertificationinmuusdesertchinaawindtunnelapproach[J]. journalofaridland,2015,7(4):421.
APA Lang Lili,Wang Xun ming,Wang Guang tao,Hua Ting,&Wang Hong tao.(2015).effectsofaeolianprocessesonnutrientlossfromsurfacesoilsandtheirsignificanceforsandydesertificationinmuusdesertchinaawindtunnelapproach.journalofaridland,7(4),421.
MLA Lang Lili,et al."effectsofaeolianprocessesonnutrientlossfromsurfacesoilsandtheirsignificanceforsandydesertificationinmuusdesertchinaawindtunnelapproach".journalofaridland 7.4(2015):421.
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