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林业科学 ›› 2001, Vol. 37 ›› Issue (2): 20-28.doi: 10.11707/j.1001-7488.20010203

• 论文及研究报告 • 上一篇    下一篇

江苏海岸带林草复合生态技术及其效应研究

安树青1 张久海2 陈兴龙4 谈建康5 张纪林3   

  1. 南京大学生命科学学院,南京210093;江苏省林业科学研究院,南京211153
  • 收稿日期:1999-09-14 修回日期:1900-01-01 出版日期:2001-03-25 发布日期:2001-03-25

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

An Shuqing1,Zhang Jiuhai2,Chen Xinglong4,Tan Jiankang5,Zhang Jilin3   

  1. College of Life Science, Nanjing University Nanjing 210093;Forest Research Institute of Jiangsu Province Nanjing 211153
  • Received:1999-09-14 Revised:1900-01-01 Online:2001-03-25 Published:2001-03-25

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(11-5月) -苏丹草+杨树萌生枝(6~9月) -狗尾草或茅叶荩草(7~10月)的高生产量格局。大大提高了生态系统的资源利用率和海岸防护林的可持续发展能力。

关键词: 生态技术, 林草复合系统, 生物量

Abstract:

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.

Key words: Ecotechnique, Silvopastoral system, Biomass