Protective maturity and regeneration for water and soil conservation forest (WSCF) of Robinia pseudoacacia in Loess Plateau

Abstract

Abstract: On the basis of the discussion on protective maturity of water and soil conservation forest (WSCF),investigations on Robinia pseudoacacia WSCFin Weibei Loess Plateau were made.The investigation items included stem diameter,tree height,crown,structure,stem analysis,soil,site condition and so on.Total 80 sample plots were obtained.Based on the investigation data,initial protective maturity age (IPMA),maximum age of protective maturity (PMA_max),regeneration age (RA) and protective maturity period (PMP) of R.pseudoacacia WSCF were determined.In the case of normal density (initial stem density =2 m×2 m,the preserved rate =80%) of Robina pseudoacacia WSCF,the results were as follows: IPMA=11～16 years,PMA_max=25 years,RA =42 years and PMP=26～31 years.Three phases for management of WSCFwere divided according to protective maturity ages.These results may provide some references in management of R.pseudoacacia WSCF.

Key words: Entomogenous fungi, Community diversity, Dabie Mountains in Anhui

CLC Number:

S727.2

ZHU Jiaojun, JIANG Fengqi, FAN Zhiping, LIU Zhigang. Protective maturity and regeneration for water and soil conservation forest (WSCF) of Robinia pseudoacacia in Loess Plateau[J]. cje, 2004, (5): 1-6.

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