The Distribution and Growth Trait of Vitex negundo Shrub in the Loess Region

CHENG Jie1; LIU Yonghui1; ZHANG Jine2

doi:10.13870/j.cnki.stbcxb.2016.05.058

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The Distribution and Growth Trait of Vitex negundo Shrub in the Loess Region

更新时间：2025-03-12

- The Distribution and Growth Trait of Vitex negundo Shrub in the Loess Region
- Vol. 30, Issue 5, Pages: 348-352(2016)
- 作者机构：
  
  1. 国家林业局西北林业调查规划设计院,西安,710048
  2. 宁夏固原市园林管理所,宁夏,固原,756000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2016.05.058
  CLC： Q948.5
- Published：2016
- 稿件说明：
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CHENG Jie1, LIU Yonghui1, ZHANG Jine2. The Distribution and Growth Trait of Vitex negundo Shrub in the Loess Region[J]. 2016, 30(5): 348-352.
DOI：

CHENG Jie1, LIU Yonghui1, ZHANG Jine2. The Distribution and Growth Trait of Vitex negundo Shrub in the Loess Region[J]. 2016, 30(5): 348-352. DOI： 10.13870/j.cnki.stbcxb.2016.05.058.

摘要

为研究黄土区不同生境下荆条灌丛的分布与生长规律，以具有典型代表性的黄土塬梁沟壑区、黄土残塬平梁沟壑区和石质山地区3种类型区作为试验地点，采用野外样地调查与定位观测相结合的方法，对荆条灌丛的各项生长指标及其与气候因子之间的关联性进行研究分析。结果表明：3种类型区间的荆条灌丛各项生长指标均表现为石质山地区＞黄土塬梁沟壑区＞黄土残塬平梁沟壑区，且存在显著性差异。其中，灌丛生物量依次为2.66，1.78，1.07 kg/株，且石质山地区荆条灌丛分枝数量比黄土塬梁沟壑区和黄土残塬平梁沟壑区分别高43.8%和61.7%。相关分析显示

荆条各项生长指标均表现出与气候因素相一致的变化趋势，且其与灌丛群落内一年生和多年生草本植物相比，具有较强的种间竞争能力。因此，荆条灌丛不仅有良好的生产应用价值，而且也具有较强的生态和水土保持功能。

Abstract

To study the distribution and growth trait of Vitex negundo shrub in the Loess region

three typical regions: the Loess tableland beam gully region

the broken Loess tableland beam gully region and the rocky mountain gully region were selected as the experiment sites. The growth indexes and its correlation with climate factors were determined by using the field survey and the observation of fixed position. The results showed that all of growth indexes of Vitex negundo in the three regions were in the following pattern in a significant level: The rocky mountain gully region＞the Loess tableland beam gully region＞the broken Loess tableland beam gully region. The shrub biomasses in the three regions were 2.66

1.78 and 1.07 kg/plant

respectively. The branches number in the rocky mountain gully region was 43.8% higher than that in the Loess tableland beam gully region

and 61.7% higher than that in the broken Loess tableland beam gully region. The correlation analysis showed that all of growth indexes responded to the climate changes in the same way

and Vitex negundo shrub had stronger competition ability compared with the annual and perennial herbs in the shrub community. Therefore

Vitex negundo

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