Potthoff M, Jackson L E. Soil biological and chemical properties in restored perennial grassland in California.Restoration Ecology, 2005, 13(1):61-73.
[4]
Reeder J D, Schuman G E. Influence of livestock grazing on C sequestration in semi-arid mixed-grass and short-grass rangelands. Environmental Pollution, 2002, 116(3): 457-463.
[5]
Su Y Z, Zhao H L. Influences of grazing and exclosure on carbon sequestration in degraded sandy grassland, Inner Mongolia, North China. Environmental Science, 2003, 24(4):23-28.
Wolde M, Veldkamp E, Mitiku H. Effectiveness of exclosure to restore degraded soils as a result of overgrazing in Tigray Ethiopia. Journal Arid Environment, 2007, 69: 270-284.
Singh K P, Mandal T N, Tripathi S K. Patterns of restoration of soil physicochemical properties and microbial biomass in different landslide sites in the sal forest ecosystem of Nepal Himalaya. Ecological Engineering, 2001, 17:385-401.