Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau

ZHAO Long; GUO Zhong-sheng; GUO Man-cai; YUAN Zhi-fa; WANG Zhen-feng

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Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau

- Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau
- Bulletin of Soiland Water Conservation Vol. 31, Issue 6, Pages: 192-195(2012)
- 作者机构：
  
  1. 西北农林科技大学理学院
  2. 西北农林科技大学水土保持研究所
  3. 中国科学院水利部水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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ZHAO Long, GUO Zhong-sheng, GUO Man-cai, et al. Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 192-195.
DOI：

ZHAO Long, GUO Zhong-sheng, GUO Man-cai, et al. Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau[J]. Bulletin of Soiland Water Conservation, 2012, 31(6): 192-195. DOI：

摘要

以经典的Logistic方程为基础

添加了一个生长阻力因素

建立了林木生长的改进模型

并采用该模型对宁夏自治区固原市黄土丘陵半干旱区柠条林生长状况进行了拟合。结果表明

成林密度对新模型具有显著影响

改进模型的密度适用值在51～71丛/100m

。

Abstract

An improved growth model was established by adding a stressing factor to classical Logistic model.The growth data of Caragana microphylla shrubland was collected in semi-arid loess hilly region

Guyuan City of Ningxia Hui Autonomous Region

to which the new model was fitted.The result showed that the improved model is highly sensitive to the planting density.The optimal density of caragana in the study area should be limited in the range from 51 to 71 clusters per one hundred square meters.

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