关键词: 诱导, 诱导

Abstract:

In order to guide the production and use shrubland reasonably, a study was conducted on sustainable utilization of shrubland. The study was on a naturely shrubland of Hejiaping on the county of Changyang in Hubei Province in 1999 and 2000.The study with 9 local wethers was designed as three treatments including the control, the light- grazing and heavy-grazing. The results showed as follows: the total protective index of grasses, forb, shrubs and shrubland were 786.8, 360.3, 394.6 and 1541.6 (DM?kg/hm2) respectively, the total protective index of Quercus acutissima, Lespedeza formosales and Rhus chinensis as dominant shrubby plants were 152.7, 43.4, 33.5 and 36 (DM?kg/hm2) respectively, and those of Miscanthus sinensis, Themeda japonica (Willd.) Tanaka, Fragaria orientalis Los and Fimbristylis henryi C.B.Clarke. as dominant herbage plants were 525.2, 176.8, 15.2 and 84.8 DM kg/ha respectively. The use patterns of shrubland were adjusted based on correlations of grass yield and the size of protective index, in order to achieve sustainable utilization.