[1]YU Fazhan,ZHANG Qian,ZHANG Zhongqi,et al.Effects of Different Types of Forest Vegetation on the Distribution of Soil Aggregate and Its Organic Carbon in Lushan Mountain[J].Research of Soil and Water Conservation,2016,23(06):15-19.
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Effects of Different Types of Forest Vegetation on the Distribution of Soil Aggregate and Its Organic Carbon in Lushan Mountain
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 06
Page number:
15-19
Column:
Public date:
2016-12-28
- Title:
- Effects of Different Types of Forest Vegetation on the Distribution of Soil Aggregate and Its Organic Carbon in Lushan Mountain
- Keywords:
- forest vegetation types; water stable aggregate; soil aggregate organic carbon; Lushan Mountain
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- The formation mechanism and the stability of soil aggregate can be illustrated through the study on the relationship between organic carbon contents in different diameters of soil aggregates and the distribution of soil aggregate. Taking the soils in the six types of forest vegetation in Lushan as research samples, the effects of different types of forest vegetation on the distribution of soil aggregate and its organic carbon were systematically investigated. The results show that there is an obvious influence on the content of soil aggregate which diameter is greater than 5 mm or the range of 0.25~0.5 mm, caused by forest vegetation type in the different soil layers. Among them, the highest amount of soil aggregate content is detected in the Pinus taiwanensis forest. With the increase of soil depth, the percentage content and mean weight diameter of water stable aggregate in the six forest vegetation types under the different soil layers gradually decrease and so does the stability of soil aggregate. The soil aggregate is relatively stable in the 0-20 cm soil layer and the mean weight diameters in Pinus taiwanensis forest, Pinus massoniana forest and Yushania chungii forest are larger, while the difference is not obvious in the 20-40, 40-60 cm soil layers. Compared with others, it is found that the Pinus taiwanensis forest’s organic carbon content in aggregate is the largest and the evergreen broad-leaved forest is the least. The changes of organic carbon contents have significantly taken place in Pinus taiwanensis forest, Pinus massoniana forest and Yushania chungii forest, while the changes of organic carbon contents are not evident in the other three types.
- References:
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