[1]HUANG Yue,ZHANG Fengbao,GAO Jingxia,et al.Progress in Research on Structural Stability of Soil Aggregates Based on High Energy Moisture Characteristic Method[J].Research of Soil and Water Conservation,2022,29(06):431-437.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 06
Page number:
431-437
Column:
Public date:
2022-10-20
- Title:
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Progress in Research on Structural Stability of Soil Aggregates Based on High Energy Moisture Characteristic Method
- Author(s):
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HUANG Yue1, ZHANG Fengbao1,2, GAO Jingxia3, SHEN Nan1,2, YANG Mingyi1,2
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; 3.Institute of Horticulture, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China)
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- Keywords:
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soil aggregate; water stability; structural stability; high energy moisture characteristic method
- CLC:
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S152.4
- DOI:
-
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- Abstract:
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The stability of soil aggregates is an important soil physical property which affects not only the soil quality, infiltration, resistance to erosion and root growth, but also is an important indicator for assessing whether a soil is degraded or not. At present, the researches on the stability of soil aggregate both in China and abroad mainly focus on the water stability with few studies on the structural stability of the aggregates. The high energy moisture characteristic(HEMC)method can determine the structural stability of soil aggregates, which is highly reproducible and can also determine small differences between different treatments. The test and calculation process can be accurately controlled, and many studies using the HEMC method have been reported abroad. There are many reports on the HEMC method for analyzing the characteristics and major factors which determine the structural stability with soil amendments, land use and soil management, and different soil physical and chemical properties. The results show that the structural stability of soil aggregates differs significantly between different treatments, and the contents of organic matter and clay are the main factors affecting the structural stability of soil aggregates. These studies were mainly reported overseas with few relevant reports in China. This research summarises the principles of the HEMC method, measuring process, data processing, index calculation and related research advances, and puts forward some suggestions for researches on soil structure, soil quality and soil resistance to erosion. The research combines the background relevant to arable land protection, restoration of degraded soils and vegetation restoration promoted in China. It is hoped that this method can be promoted and used for providing basic data support for the evolution of soil quality, promotion and evaluation of soil health.