摘要
在江苏海岸带 6年生 2 -69杨林分下 ,通过外来牧草引种和土著牧草开发 ,结合简化培育技术、时空配置技术、林分密度调控技术和牧草栽培技术等林草复合生态措施 ,建立了稳定的林下草场。在空间上 ,形成杨树 -杨树萌生枝 -牧草的三层垂直格局和多种牧草混播的水平格局 ;在时间上 ,形成多花黑麦草 +紫花苜蓿 ( 1 1 -5月 ) -苏丹草 +杨树萌生枝 ( 6～ 9月 ) -狗尾草或茅叶荩草 ( 7～ 1 0月 )的高生产量格局。
A stable silvopastoral system of stand (6\|year\|old \%Populus deltoides\% cv.I\|69/55) and herb(exotic species and local ones) was established in the north coastal area of Jiangsu province, by the improving technique of herb breeding, stand density controlling, spatial\|temporal arranging and herb sowing. The system includes 3 vertical layers, i.e., poplar trees\|poplar sprouts\|herb and horizontal mixed\|growth pattern of several herb species in spatial niches. It is also a high yield pattern of \%Lolium multiflorum+Medicago sativa\%(November to May)\|\%Sorghum sudanense+\%poplar sprouts(June to September)\|\%Setaria faberii\% or \%Artharxon pricnodes\%(July to October) in temporal niches. The system drastically increases the resource utilization coefficient of the ecosystem and sustainable development capacity of the sheltering forest of the coastal area.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2001年第2期21-28,共8页
Scientia Silvae Sinicae
基金
国家九五科技攻关计划项目!(96 -0 0 7-0 3 -0 5 )
