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林业科学 ›› 2001, Vol. 37 ›› Issue (3): 72-77.doi: 10.11707/j.1001-7488.20010312

• 论文及研究报告 • 上一篇    下一篇

我国人工林生产力问题的研究(Ⅰ)——影响我国人工林生产力的自然因素评价

孙长忠 沈国舫   

  1. 中国林业科学研究院林业研究所,北京100091;北京林业大学资源与环境学院,北京100083
  • 收稿日期:2000-08-21 修回日期:1900-01-01 出版日期:2001-05-25 发布日期:2001-05-25

STUDY ON THE PROBLEMS OF FOREST PLANTATION PRODUCTIVITY OF CHINA(Ⅰ)——TO PROBE INTO THE NATURAL FACTORS OF INFLUENCING THE PLANTATION PRODUCTIVITY

Sun Changzhong,Shen Guofang   

  1. The Research Institute of Forestry,CAF Beijing 100091;College of Resource and Environment of Beijing Forestry University Bijing 100083
  • Received:2000-08-21 Revised:1900-01-01 Online:2001-05-25 Published:2001-05-25

摘要:

以桉树、杉木、马尾松、落叶松及樟子松等为对象,利用样地调查资料,结合已有研究成果,对造成我国人工林生产力低下的多种自然因素,进行了系统地分析研究。结果表明,按人工林现实分布格局及立地质量水平,全国人工林气候—立地生产潜力(材积)平均为8.6m3hm2·a ;现有人工林由于大面积幼龄林的存在,所带来的生产力总体水平下降的幅度为31%~35%。

关键词: 人工林, 生产力, 自然因素, 问题分析

Abstract:

Based on the investigation data from the sample plots of Eucalyptus spp.Cunninghamia lanceolata, Pinus massoniana, Larix spp. and Pinus sylvestris var. Mongolica etc, and combining with other results of research projects on plantation, main natural factors that effect the productivity of Chinese forest plantation were studied systematically. The results showed: (1) According to the actual distribution of Chinese plantation and the site quality, the average climatic-site potential of production of Chinese forest plantation was 8.6 m3/hm2·a. (2) Because the area proportion of sapling stand to the total plantation area was too large, there had been a 31%~35% reduction in the overall level of forest productivity of China plantation.

Key words: Plantation, Productivity, Natural factors, Probing problems