[1]YU Yajun,REN Shanshan,GUO Likai,et al.Study on Soil Water-Holding Capacity Between Two Types of Reclamation Agroforestry Land on a Coal Waste Pile[J].Research of Soil and Water Conservation,2016,23(02):44-48.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 02
Page number:
44-48
Column:
Public date:
2016-04-28
- Title:
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Study on Soil Water-Holding Capacity Between Two Types of Reclamation Agroforestry Land on a Coal Waste Pile
- Author(s):
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YU Yajun, REN Shanshan, GUO Likai, BI Bin
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College of Geographic Sciences, Shanxi Normal University, Linfen, Shanxi 041004, China
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- Keywords:
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coal waste pile; reconstructed soil; soil water-holding capacity; vegetation recovery
- CLC:
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S152.7
- DOI:
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- Abstract:
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Soil water-holding capacity is a basic condition on vegetation recovery and ecological reconstruction reclamation in reconstructed soil. Therefore, it is very important for choice of the vegetation types by studying soil water-holding capacity between different types of reclamation agroforestry lands. The soil water-holding capacities within 100 cm soil layer of shrub land after six years of reclamation (SL) and grassland after six years of reclamation (GL) were studied on a coal waste pile in Wang village, Changzhi City, Shanxi Province. The results showed that: (1) the mean soil bulk densities of reclamation shrub land (SL) and reclamation grass land (GL) within 100 cm soil layer increased by 12.7% and 19.0% compared to CK, respectively, the profile propertes within 100 cm soil layer of SL and GL were different from those of the CK, and the differences were mainly reflected in above 60 cm soil layer; (2) soil total porosities in SL and GL decreased by 20.5% and 30.9% compare to CK, respectively, and non-capillary porosities decreased by 20.5% and 30.9%, respectively, but capillary porosities increased by 14.1% and 2.4%, respectively, therefore, soil saturated water contents and non-capillary water storage in SL and GL were lower than those in CK, but capillary water storage was higher; (3) the mean soil water contents and soil water storage in SL and GL within 100 cm soil layer increased by 7.8%, 12.3% and 23.5%, 34.9% compare to CK, respectively, but it was different in different soil layers, and it was mainly reflected in 60—100 cm soil layer.