Research on Afforestation Techniques in Southern Ningxia in Loess Hilly Area

Ceng Ji-min

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Research on Afforestation Techniques in Southern Ningxia in Loess Hilly Area

- Research on Afforestation Techniques in Southern Ningxia in Loess Hilly Area
- Bulletin of Soiland Water Conservation Vol. 15, Issue 3, Pages: 37-43(1996)
- 作者机构：
  
  中国科学院水利部水土保持研究所
- 作者简介：
- 基金信息：
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- Published：1996
- 稿件说明：
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Ceng Ji-min. Research on Afforestation Techniques in Southern Ningxia in Loess Hilly Area[J]. Bulletin of Soiland Water Conservation, 1996, 15(3): 37-43.
DOI：

Ceng Ji-min. Research on Afforestation Techniques in Southern Ningxia in Loess Hilly Area[J]. Bulletin of Soiland Water Conservation, 1996, 15(3): 37-43. DOI：

摘要

在自然环境恶劣

水土流失严重的黄土丘陵区

建造人工林生态系统工程

本身就需要一个复杂的过程。尤其是建造人工林生态系统工程与天然林比较起来时间周期是一分短暂的。为了短期内形成一个稳定的生态系统

就必须充分吸取和借鉴自然生态系统中生物之间“共能性共生”机制

减少抗生、竞争等不利因素

使人工林生态系统在最短期间达到稳定与高效能。因此

它的结构与功能是这个人工生态系统成败的关键。由于我们人类过高的估价了自己的力量

不按生态系统规律办事

结果有大量的先例以失败而告终。例如黄土丘陵区大面积的杨树上山造林生长不良形成“小老树”

刺槐在高海拔区造林由于冻稍生长不良倒致死亡等……。

Abstract

It needs a long complex process to establish an artificial froest ecosystem in the fragile natural environment with serious soil and water loss in loess hilly area

Because the artificial forest should be steady and productive within a very shorter period than that of natural forest needs

we should study the ecological relationship of natural system.The system we built should have as less as possible of resistant and competitation in it

so that the system could be efficient.Therefore the structure and function of those artificial system is the key in their erecting process.We had made a wrong step in land harnessing and afforesting for our overlooking to the natural law.

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