Percentage of soil absolute moisture content at different succession stages of Castanopsis platyacantha-Schima sinensis formation in central subtropical zone of Sichuan Province

Abstract

Abstract: The temporal spatial characteristics of the percentage of soil absolute moisture content (PSAMC, defined as the percentage of soil water to dried soil) at different succession stages of C.platyacantha S.sinensis formation such as brush, 10, 40, and 200 years old C.platyacantha S.sinensis communities were studied, using the methods of orientation observation and variance analysis under the similar conditions including climates, topographies, landforms, and soils. The results indicated that the relationship between soil depth and PSAMC of all communities except for 10 years old community were significant. The effects of season on PSAMC at different stages of all C.platyacantha S. sinensis communities was not significant. Similarly, aspect had no notable effects on PSAMC of all communities but 10 years old community. Different succession phases had significant effects on PSAMC (0～60cm depth). The water retention ability of soil was restored up to 73% and 85% of primary C. platyacantha S. sinensis forests when C.platyacantha S.sinensis communities were 10 and 40 years old. PSAMC of different succession phases of C.platyacantha S. sinensis had obvious characteristics of fluctuation and chaos.

Key words: Percentage of soil absolute moisture content (PSAMC), Sichuan, Castanopsis platyacantha Schima sinensis formation, Succession stage, Central subtropical zone, vegetation biomass, shale gas ming, land use, well-drilling field

CLC Number:

Q948.112.3

PAN Kaiwen, ZHANG Yuanbin . Percentage of soil absolute moisture content at different succession stages of Castanopsis platyacantha-Schima sinensis formation in central subtropical zone of Sichuan Province[J]. Chinese Journal of Applied Ecology, 2003, (2): 165-169.

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