基于WEQ方法的蒙古土壤风蚀空间评价（英文）

发布时间：2018-03-22 03:32

  本文选题：climatic　切入点：factors　出处：《Journal of Geographical Sciences》2016年04期 　论文类型：期刊论文

【摘要】：Wind erosion is a major contributor to land degradation and desertification. According to the Global Assessment of Human Induced Soil Degradation, the dryland territories of Mongolia are significantly affected by wind erosion. We used the wind erosion equation model in an Arc GIS environment to evaluate wind erosion across Mongolia. The individual factors of the wind erosion equation were parameterized using the following datasets:(a) monthly climatic data from 45 meteorological stations;(b) 16-day composites of MODIS Normalized Difference Vegetation Index data;(c) a SRTM DEM with a 90 m spatial resolution; and(d) the soil map of Mongolia. The results revealed the significant influence of aridity on wind erosion. The desert and semi-desert ecosystems were more vulnerable to wind erosion, hence more affected. The map of wind erosion revealed three major wind erosion regions where the maximum soil loss of 15 27 t/(hm~2·a) was observed. In general, the wind erosion potentials for the entire country of Mongolia are 15 27 t/(hm~2·a) in the deserts and semi-deserts, 10 15 t/(hm~2·a) in the dry steppes and 5 10 t/(hm~2·a) in the steppe regions.
[Abstract]:Wind erosion is a major contributor to land degradation and desertification. According to the Global Assessment of Human Induced Soil #engradation.#en14# dryland territories of Mongolia are significantly significantly affected by wind erosion.We used used wind erosion equation model in an Arc GIS model in an Arc GIS model in an Arc GIS environment to wind wind wind factors factors of the wind wind wind factors of the erosion equation were were equation. A SRTM DEM with a 90 m spatial resolution; The results revealed the significant influence of aridity on wind erosion.#en21# desert semi-desert ecosystems were were more vulnerable to wind erosion.#en32# The The revealed three major wind wind regions regions. In general, the wind erosion potentials for the entire country of Mongolia are 27 t/(hm~2 a) in the deserts and semi-deserts10 ~ 15 t/(hm~2 a) in the dry steppes and 5 / 10 t/(hm~2) in the steppe regions.
【作者单位】： Institute
【基金】：Swiss Agency for Development and Cooperation(SDC),No.81013651
【分类号】：S157.1

【相似文献】

相关期刊论文 前10条

1 ;Soil Loss by Wind Erosion for Three Different Textured Soils Treated with Polyacrylamide and Crude Oil, Iraq[J];Journal of China University of Geosciences;2001年02期

2 ;Spatial distribution of wind erosion and its driving factors in China[J];Journal of Geographical Sciences;2001年02期

3 ;Soil erosion in China based on the 2000 national remote sensing survey[J];Journal of Geographical Sciences;2002年04期

4 ;~(210)Pb_(ex) depth distribution in soil and calibration models for assessment of soil erosion rates from ~(210)Pb_(ex) measurements[J];Chinese Science Bulletin;2003年08期

5 ;Assessment and spatial distribution of sensitivity of soil erosion in Tibet[J];Journal of Geographical Sciences;2004年01期

6 ;Soil Erosion on a Slope without Vegetation: a Simulating Experiment on a Bare Land in Mt.Tanakami[J];Wuhan University Journal of Natural Sciences;2004年04期

7 ;A review of soil erodibility in water and wind erosion research[J];Journal of Geographical Sciences;2005年02期

8 ;Quantitative analysis on soil erosion based on 3S technology[J];Transactions of Nonferrous Metals Society of China;2005年S1期

9 Mohammadi Torkashvand Ali;Nikkami Davood;;Methodologies of preparing erosion features map by using RS and GIS[J];International Journal of Sediment Research;2008年02期

10 Hui-Ming SHIH;Chih Ted YANG;;Estimating overland flow erosion capacity using unit stream power[J];International Journal of Sediment Research;2009年01期

相关会议论文 前10条

1 ;Using the RBFN model and GIS technique to assess wind erosion hazard of Inner Mongolia,China[A];中国地理学会2006年学术年会论文摘要集[C];2006年

2 ;Modeling of erosion and deposition on rough test limiter exposed to the edge plasma of TEXTOR[A];第十五届全国等离子体科学技术会议会议摘要集[C];2011年

3 ;Modeling Sediment Yields in A Small Gully of the Sichuan Hilly Basin Using Geowepp Model[A];Information Technology and Computer Science—Proceedings of 2012 National Conference on Information Technology and Computer Science[C];2012年

4 ;A study on responses of soil erosion and sediment yield to closing cultivation on sloping land in a small catchment using ~(137)Cs technique in the Rolling Loess Plateau,China[A];中国科学院地质与地球物理研究所二○○三学术论文汇编·第三卷(地球环境·工程地质与灾害)[C];2003年

5 ;Holocene Colluviation and its Implications for Tracing Human-induced Soil Erosion and Redeposition on the Piedmont Loess Lands of the Qinling Mountains,Northern China[A];中国地理学会2006年学术年会论文摘要集[C];2006年

6 ;Ecological Laws of Soil and Water Lose in Red Soil Hilly Areas[A];中国生态学会2006学术年会论文荟萃[C];2006年

7 ;Responses of Rain Splash Erosion and Soil Crust Development to Particle Size[A];Proceedings of Symposium from Cross-strait Environment & Resources and 2nd Representative Conference of Chinese Environmental Resources & Ecological Conservation Society[C];2010年

8 ;Environmental Problems and the Use of Vetiver Grass for Revegetation in Rare Earth Mine , South China[A];2006中国草业发展论坛论文集[C];2006年

9 ;Erosion Development of Gully System in Loess Residual Upland Gully Region[A];Proceedings of Symposium from Cross-strait Environment & Resources and 2nd Representative Conference of Chinese Environmental Resources & Ecological Conservation Society[C];2010年

10 R.Wilhelm;;EROSION of PCD TOOLS[A];2005'全国木工刀具生产及应用技术研讨会资料汇编[C];2005年

相关硕士学位论文 前1条

1 波西（Torabazpoyesh）;中尺度流域土地利用变化对土壤侵蚀产沙的影响[D];华中农业大学;2014年

，

本文编号：1646896