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中国沙漠 ›› 1995, Vol. 15 ›› Issue (1): 92-95.

• 论文 • 上一篇    下一篇

宁夏沙地主要灌木饲料林树种经济性状分析

孙德祥1, 周子伟2   

  1. 1. 宁夏农林科学院林业研究所, 银川 750004;
    2. 宁夏科委星火办, 银川 750004
  • 收稿日期:1994-04-29 修回日期:1994-07-05 出版日期:1995-03-20 发布日期:1995-03-20

ECONOMIC CHARACTER ANALYSIS OF MAIN FORGE SHRUBS ON SANDY LAND IN NINGXIA

Sun Dexiang1, Zhou Ziwei2   

  1. 1. Forestry Institrte, Ningxia Academy of Agriculture and Forestry Yinchuan, 750004;
    2. Ningxia Commission of Science, Yinchuan, 750004
  • Received:1994-04-29 Revised:1994-07-05 Online:1995-03-20 Published:1995-03-20

摘要: 经过对大量的野外调查数据的分析和研究, 建立了宁夏沙地主要灌木饲料林树种毛条、柠条、沙柳、花棒丛生物量(鲜重)(地上部分)的多元线性回归方程, 用半定位观测方法测定了这四个灌木树种丛生物量(鲜重)可食部分与不可食部分之比以及生物量的干鲜比, 并给出了它们的营养成分。可为灌木饲料林的经营和管理提供理论依据。

关键词: 灌木饲料林树种, 生物量, 多元线性回归方程, 营养成分

Abstract: Through analysis on the field investigation data a multivariate linear regression equation of biomass(above-ground part)of main forage shrubs,including Caragama korshinskii,C. microphylla,Salix psammophila and Hedysarum scoparium,in Ningxia was established. The ratio between edible part and inedible part of these shrubs and their fresh-dry biomass ratio were measured at semi-fixed sites,thus laying a theoretical basis for the management of forage shrub forest.

Key words: Forage, Shrub, Sandy land