植物生态学报 ›› 1987, Vol. 11 ›› Issue (1): 43-49.

• 论文 • 上一篇    下一篇

人工和自然羊草种群的高生长及生物量季节动态的研究

高玉宝   

  • 发布日期:1987-01-10
  • 通讯作者: 高玉宝

Studies on the Seasonal Dynamics of Height and Biomass for the Population Aneurolepidium chinense in an Artificial Grassland and Natural Community

Gao Yu-bao   

  • Published:1987-01-10
  • Contact: Dong Ming

摘要: 本文所研究的人工羊草草地是在内蒙古锡林河中游南岸羊草草原的基础上建成的。此项研究试就人工种植的羊草(Aneurolepidium chinensis)和原生群落建群种羊草在高生长和生物量增长方面作一比较。 (1)从返青后四十天开始,人工羊草种群的高生长表现为曲线 种群平均高度最大值达52.98cm,并在垂直结构上控制着群落的中层和上层;原生群落中羊草的高生长曲线为:种群平均高度最大值为40.61cm。(2) 人工羊草种群的生物量按方程增长,植物地上部分的干物质含量依直线CA=27.4874+0.2245t变化。生物量峰值(172.00g/m2)和干物质含量极值 (58.24%)都超过了天然生长的羊草。目前人工草地适于作为割草场使用,可获得优质高产的牧草。

Abstract:

This paper compared the seasonal dynamics of height and biomass of the population Aneurolepidium chinense, which is the constructive species of the artificial grassland, with that of its neighbouring natural community.

1. From the beginning of June to the middle of August, the height increase of the population follows

and the maximum value of the average height reaches 52.98cm; furthermore, its individuals nearly occupy the middle and upper layers of the community; in the natural community, however, the curve of height increase of the population is expressed as and the maximum value of the average height is only 40.61cm.

2. The biomass of the population increases as the following equation

during the growing season, and the content of dry matter in the aboveground parts of plants varies by CA=27.4874+0.2245t. Both the peak of biomass and the maximum content of dry matter are more than those of natural community.

Now the artificial grassland can be used as an area of mowing, and a large amount of grasses of good quality will be harvested from it.