4Kathleen A F, Eugene F K, Robert G. M. Soil organic carbon and water retention after conversion of grasslands to pine plantations in the Ecuadorian andes [ J ]. Ecosystems,2004,7 (7) :729 - 739.
5Rhoades C, Binkley D. Factors influencing decline in soil pH in Hawaiian Eucalyptus and Albizia plantations [ J ]. Forest Ecology and Management, 1996,80 ( 1 ) :47 - 56.
6Sartori F,Lal R,Ebinger M H. Changes in soil carbon and nutrient pools along a chronosequence of poplar plantations in the Columbia Plateau, Oregon, USA [ J ]. Agriculture, Ecosystems and Environment,2007,122:325 - 339.
7Yamashitaa N, Ohtaa S, Hardjono A. Soil changes induced by Acacia mangium plantation establishment:Comparison with secondary forest and Imperata cylindrica grassland soils in South Sumatra [ J ]. Indonesia: Forest Ecology and Management,2008,254 (2) :362 - 370.
8Gob K M, Heng S. The quantity and nature of the forest floor and topsoil warter under some indigenous forests andnearby areas converted to Pinus radiata plantation in SouthIsland, New Zealand [ J ]. N. Z. J. Bot,1987 ,25 :243 -254.
9Smethurst P J, Nambiar E K S. Distribution of carbon and nutrients and fluxes of mineral nitrogen after clear - felling a Pradiata plantation [ J ]. Canadian Journal of Forest Research, 1990,20 : 1490 - 1497.
10Aluko A P. Soil properties and nutrient distribution in terminalia superba stands of different age series grown in two soil types of southwestern Nigeria [ J ]. Forest Ecology and Management, 1993,58, (2) :153 -161.
