| 黄土丘陵半干旱区柠条林生长过程研究 |
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| 引用本文： | 赵龙,郭忠升,郭满才,袁志发,王振凤. 黄土丘陵半干旱区柠条林生长过程研究[J]. 水土保持通报, 2012, 32(6): 192-195 |
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| 作者姓名： | 赵龙 郭忠升 郭满才 袁志发 王振凤 |
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| 作者单位： | 1. 西北农林科技大学理学院,陕西杨凌,712100
2. 西北农林科技大学水土保持研究所,陕西杨凌712100 中国科学院水利部水土保持研究所,陕西杨凌712100 |
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| 基金项目： | 国家自然科学基金项目“黄土丘陵半干旱区人工林草地土壤水资源利用限度”，中央高校基本科研业务经费专项资金 |
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| 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/100m2。
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| 关 键 词： | 黄土丘陵半干旱区 柠条 生长模型 |
| 收稿时间： | 2012-04-20 |
| 修稿时间： | 2012-06-16 |
Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau |
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| ZHAO Long,GUO Zhong-sheng,GUO Man-cai,YUAN Zhi-fa and WANG Zhen-feng. Growing Process of Caragana Microphylla Shrubland in Semi-arid Hilly Region of Loess Plateau[J]. Bulletin of Soil and Water Conservation, 2012, 32(6): 192-195 |
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| Authors: | ZHAO Long GUO Zhong-sheng GUO Man-cai YUAN Zhi-fa WANG Zhen-feng |
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| Affiliation: | 1(1.College of Science,Northwest A&F University,Yangling, Shaanxi 712100,China;2.Institute of Soil and Water Conservation,Northwest A&F University,Yangling,Shaanxi 712100,China;3.Institute of Soil and Water Conservation, Chinese Academy of Sciences & Ministry of Water Resource,Yangling,Shaanxi 712100,China) |
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| 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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| Keywords: | semi-arid loess hilly region Caragana microphylla growth model |
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