江苏海岸带林草复合生态技术及其效应研究  

STUDIES ON INTEGRATED ECOTECHNIQUE OF SILVOPASTORAL SYSTEM IN COASTAL AREA, JIANGSU PROVINCE

作　　者：安树青[1] 张久海[1] 陈兴龙[1] 谈建康[1] 张纪林[2] 

机构地区：[1]南京大学生命科学学院,南京210093 [2]江苏省林业科学研究院,南京211153

出　　处：《林业科学》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 )

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.

关 键 词：生态技术 林草复合系统 生物量 海岸带 沿海防护林 林下草场 林下放牧试验 

分 类 号：S727.26[农业科学—林木遗传育种] S181[农业科学—林学]