Yuanjun Zhu1; Xiaoxu Jia4; Jiangbo Qiao1; Mingan Shao1
Source Publication科学通报英文版
AbstractThe Loess Plateau of China(LP) has the largest and thickest loess deposits in the world. Quantifying the amount of loess in the LP is crucial for investigating the accumulation and erosion of loess, and determining the regional soil and water resource capacity. We used loess thickness data, a pedotransfer function for bulk density(BD), and the clay content data observed in 242 sites across the LP to derive the BD of loess and then estimate the loess mass and its distribution across the LP. The results indicated that the average BD of loess between the surface and bedrock is 1.58 g cm-3, varying from 1.18 to 1.87 g cm-3.The total loess mass is approximately 5.45 ? 1013 t, and the average loess mass over an area of 1 m2 is 169 t, ranging from 1.36 to 585 t. The greatest mass of loess is in the south-central of the LP while the lowest mass of loess is in the northwest and river valley areas. Our estimate of loess mass provides key data for calculating water, carbon, and nutrient storages in the LP, which improves our understanding of soil-water processes and ecohydrological systems in this landscape.
Document Type期刊论文
Affiliation1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A&F University
2.Institute of Soil and Water Conservation,Chinese Academy of Sciences&Ministry of Water Resources
4.Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yuanjun Zhu,Xiaoxu Jia,Jiangbo Qiao,et al. whatisthemassofloessintheloessplateauofchina[J]. 科学通报英文版,2019,000(008):534.
APA Yuanjun Zhu,Xiaoxu Jia,Jiangbo Qiao,&Mingan Shao.(2019).whatisthemassofloessintheloessplateauofchina.科学通报英文版,000(008),534.
MLA Yuanjun Zhu,et al."whatisthemassofloessintheloessplateauofchina".科学通报英文版 000.008(2019):534.
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