CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA | |
Jin, Z (Jin, Z.)[ 1 ]; Dong, YS (Dong, Y. S.)[ 2 ]; Qi, YC (Qi, Y. C.)[ 2 ]; Liu, WG (Liu, W. G.)[ 1 ]; An, ZS (An, Z. S.)[ 1 ] | |
2013-04-30 | |
发表期刊 | LAND DEGRADATION & DEVELOPMENT |
卷号 | 24期号:2页码:141-146 |
文章类型 | 期刊论文 |
摘要 | The application of fractal geometry to describe soil degradation and dynamics is becoming a useful tool for better understanding of the performance of soil systems. In this study, four different land cover types, which represent a sequence of grassdesert shrub transition and a gradient of desertification, were selected, and soils at depths of 010, 1020 and 2040cm were sampled in the Ordos Plateau of Inner Mongolia, PR China. The fractal theory was used to analyse the soil particle-size distribution (PSD) and its variations. The results showed that (i) vegetation conversion and desertification significantly changed the soil PSD. During the desertification process, soil coarse fractions that ranged from 250 to 100 mu m significantly increased, whereas fine fractions lower than 50 mu m significantly decreased (p<0 center dot 01); (ii) fractal model of the accumulative volume particle-size distribution is appropriate, and fractal dimensions (Dm) of soil PSD significantly decreased along the sequence of grassdesert shrub transition; (iii) Dm is more sensitive to the desertification process, and therefore, we suggest Dm other than soil texture and soil organic carbon as a reliable parameter to reflect the soil environment change induced by desertification. |
关键词 | Fractal Dimension Soil Psd Vegetation Conversion Desertification Ordos Plateau Pr China Mongolia Soil Particle‐size |
DOI | 10.1002/ldr.1112 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9929 |
专题 | 生态环境研究室 |
通讯作者 | Jin, Z (Jin, Z.)[ 1 ] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, PR China; 2.Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, PR China |
推荐引用方式 GB/T 7714 | Jin, Z ,Dong, YS ,Qi, YC ,et al. CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA[J]. LAND DEGRADATION & DEVELOPMENT,2013,24(2):141-146. |
APA | Jin, Z ,Dong, YS ,Qi, YC ,Liu, WG ,&An, ZS .(2013).CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA.LAND DEGRADATION & DEVELOPMENT,24(2),141-146. |
MLA | Jin, Z ,et al."CHARACTERIZING VARIATIONS IN SOIL PARTICLE-SIZE DISTRIBUTION ALONG A GRASSDESERT SHRUB TRANSITION IN THE ORDOS PLATEAU OF INNER MONGOLIA, CHINA".LAND DEGRADATION & DEVELOPMENT 24.2(2013):141-146. |
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