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›› 1985, Vol. 21 ›› Issue (2): 189-194.

• 研究简报 • 上一篇    下一篇

评价黄土干旱区宜林地立地质量的数量化方法

戴秀章 梅曙光 董宏林 叶瑞仁 陈三南   

  1. 宁夏区林业科学研究所;宁夏区计算中心
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1985-05-25 发布日期:1985-05-25

A QUANTITATIVE METHOD OF EVALUATING SITE QUALITY FOR AFFORESTATION IN THE ARID REGION OF LOESS LAND

Dai Xiuzhang,Mei Shuguang,Dong Honglin,Ye Ruiren,Chen Sannan   

  1. Forest Research Institute of Ningxia;The Computing Center of Ningxia
  • Received:1900-01-01 Revised:1900-01-01 Online:1985-05-25 Published:1985-05-25

Abstract: In order to evaluate site quality for afforestation in the arid region of loess covered by low woodland and shrubs mainly consisting of Caragana korshinskii Kom.a quantitative method was employed.Based on the quantification of critically ecological factors as independent variables,which affect the growth of trees,a deterministic mathematical modle was established to predict fresh weight of C.korshinskii at the age of four years through multiple regression analysis.Thus the fresh weight above ground can be used as criterion to evaluate the site quality before starting afforestation.