What is the mass of loess in the Loess Plateau of China?

被引：0
作者：
Yuanjun Zhu [1 ,2 ,3 ]
Xiaoxu Jia [4 ,3 ]
Jiangbo Qiao [1 ]
Ming'an Shao [1 ,4 ,2 ,3 ]
机构：
[1] State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University
[2] College of Resources and Environment, University of Chinese Academy of Sciences
[3] 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
来源：
Science Bulletin | 2019年 / 64卷 / 08期
基金：
中国国家自然科学基金;
关键词：
The Loess Plateau; Loess mass; Pedotransfer function; Soil erosion; Bulk density;
D O I：
暂无
中图分类号：
S157.1 [水土流失的原因及其防治];
学科分类号：
0815 ; 082802 ; 090707 ; 0910 ;
摘要：
The 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, varying from 1.18 to 1.87 g cm.The total loess mass is approximately 5.45 ? 10t, and the average loess mass over an area of 1 m~2 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.
引用
收藏
页码：534 / 539
页数：6
相关论文
共 50 条
  • [41] On the relationship between environmental aridization of the Loess Plateau and soil water in loess
    杨文治
    邵明安
    彭新德
    夏卫生
    [J]. Science in China(Series D:Earth Sciences), 1999, (03) : 240 - 249
  • [42] On the relationship between environmental aridization of the Loess Plateau and soil water in loess
    Yang, WZ
    Shao, MA
    Peng, XD
    Xia, WS
    [J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 1999, 42 (03): : 240 - 249
  • [43] Underlying mechanisms of the geohazards of macro Loess discontinuities on the Chinese Loess Plateau
    Wang, Shaokai
    Peng, Jianbing
    Zhuang, Jianqi
    Kang, Chenyun
    Jia, Zhijie
    [J]. ENGINEERING GEOLOGY, 2019, 263
  • [44] On the relationship between environmental aridization of the Loess Plateau and soil water in loess
    Wenzhi Yang
    Ming’an Shao
    Xinde Peng
    Weisheng Xia
    [J]. Science in China Series D: Earth Sciences, 1999, 42 : 240 - 249
  • [45] Evaluating sediment connectivity and its effects on sediment reduction in a catchment on the Loess Plateau, China
    Liu, Wei
    Shi, Changxing
    Ma, Yongyong
    Wang, Yanjun
    [J]. GEODERMA, 2022, 408
  • [46] Assessing applicability of the WEPP hillslope model to steep landscapes in the northern Loess Plateau of China
    Zheng, Fenli
    Zhang, X-C
    Wang, Jianxun
    Flanagan, Dennis C.
    [J]. SOIL & TILLAGE RESEARCH, 2020, 197
  • [47] Land use impacts on soil detachment capacity by overland flow in the Loess Plateau, China
    Li, Zhen-Wei
    Zhang, Guang-Hui
    Geng, Ren
    Wang, Hao
    Zhang, X. C.
    [J]. CATENA, 2015, 124 : 9 - 17
  • [48] Soil erodibility influenced by natural restoration time of abandoned farmland on the Loess Plateau of China
    Wang, Hao
    Zhang, Guang-hui
    Li, Ning-ning
    Zhang, Bao-jun
    Yang, Han-yue
    [J]. GEODERMA, 2018, 325 : 18 - 27
  • [49] Temporal variation in soil detachment under different land uses in the Loess Plateau of China
    Zhang, Guang-hui
    Tang, Ming-ke
    Zhang, X. C.
    [J]. EARTH SURFACE PROCESSES AND LANDFORMS, 2009, 34 (09) : 1302 - 1309
  • [50] Changes in vegetation carbon stocks between 1978 and 2007 in central Loess Plateau, China
    Sun, Yirong
    Zhu, Jiaojun
    Yan, Qiaoling
    Hu, Zhibin
    Zheng, Xiao
    [J]. ENVIRONMENTAL EARTH SCIENCES, 2016, 75 (04)
12345