欢迎访问林业科学,今天是

林业科学 ›› 1998, Vol. 34 ›› Issue (2): 11-16.

• 论文及研究报告 • 上一篇    下一篇

农林复合系统防尘效应的研究*

孟平1,宋兆民1,张劲松1,马秀玲2   

  1. 1. 中国林业科学研究院林业研究所 北京 100091
    2. 中国农业大学 北京 100094
  • 收稿日期:1996-06-06 出版日期:1998-03-25 发布日期:1998-03-25

A STUDY ON DUSTPROOF EFFECT OF AGROFORESTRY SYSTEM

Ping Meng1,Zhaomin Song1,Jinsong Zhang1,Xiuling Ma2   

  1. 1. The Research Institite of Forestry, CAF Beijing 100091
    2. Chinese Agriculture University Beijing 100094
  • Received:1996-06-06 Online:1998-03-25 Published:1998-03-25

摘要:

本文对农林复合生态系统气候特征及对防尘效应进行了研究。结果表明:在沙质土壤类型区,农林复合生态系统具有较高的动力和水文效应,是减少降尘的直接原因。防风效能愈强,防尘效果愈好;农林复合生态系统能够有效地减少尘埃输送量,同时能减少降尘量达20%~60%;防风效能、乱流交换强度、土壤湿度是决定降尘量大小的主要因子。

关键词: 农林复合生态系统, 降尘, 防风效能

Abstract:

The climatic characteristics and the dustproof effect of agroforestry ecosystem are studied in Raoyang County, Hebei Province. The results shows that:(1) In sandy soil area, the dynamic and hydrological effect of the agroforestry system are remarkable, and it is the directive reason for reducing the falling the dust capacity. (2) The stronger the wind-protection ability is, the better the dustproof effect will be. Agroforestry system could reduce the transporting dust capacity effectively, and reduce the falling dust capacity by 20%~60%. (3) Wind-protection effect, turbulivity and soil moisture are the main factor which determine the falling dust capacity.

Key words: Agroforestry system, Wind-protection effect, Falling dust