采用挖穴施肥和条沟草带2种方法,在2个不同的地点对劣质马尾林进行改造试验,从林木年抽梢、材积、覆盖和地表草灌多样性进行分析。结果表明:经过3年改造的马尾松抽梢总长在1.6m以上,比对照0.95m增长0.65m以上,年均多增长0.22m;材积增长12.7m^3/hm^2,比对照3.4增长9.3m^3/hm^2,年均增加3.1m^3/hm^2;覆盖度也增加32%~47%,比对照分别增加19%和32%;同时促进了生物多样性,草灌植被均增加10种以上。
By the perforated method furrow straw cord method, it has been conducted the rehabilitation experiments to inferior Mansoon Pine Forests in two different sites. Analysis was done from the aspects of budding, volume of timber,coverage and ground grass & shrub diversity shows that after three years' rehabilitation, the total height of budding at treetop reaches more than 1.6m, 0. 65m higher than the height of 0. 95m set for the comparison, annual increase of 0.22m. The volume of timber increases 12.7m^3/hm^2, 9.3m^3/hm^2 longer than the volume of 3.4m^3/hm^2 set for the comparison, with the annual average increase of 3.1m^3/hm^2. The coverage also increases 32% - 47%, which is 19% and 32% higher than the comparison. At the same time, it also promoted the bio - diversity, wht the grass and shrub vegetation increases more than 10 species for each.