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Forest and Grassland Resources Research >

2023 , Vol. 0 >Issue 2: 70 - 78

DOI: https://doi.org/10.13466/j.cnki.lyzygl.2023.02.010

Scientific Research

Habitat Characteristics and Effects on Growth of Arundinaria faberi in Different Slope Positions of Subalpine Meadow

  • Keyu YAN ,
  • Pingping CHEN ,
  • Jianxing LI ,
  • Limei ZHANG ,
  • Hui LIU ,
  • Zhengfa CHEN
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  • 1. College of Water Conservancy,Yunnan Agricultural University,Kunming 650201,China
    2. Kunming Engineering Corporation Limited of Powerchina,Kunming 650051,China
    3. Datang Yunnan New Energy Co.,Ltd,Kunming 655200,China

Received date: 2023-03-11

  Revised date: 2023-04-21

  Online published: 2023-06-26

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Abstract

As a dominant plant species in subalpine meadows on the low-latitude plateau,it is of great guiding significance to clarify the habitat characteristics and key growth factors of different slope positions of Arundinaria faberi for its community protection.The research object was Arundinaria faberi in the subalpine meadow of Gaoben Mountain in Xundian,Yunnan.By investigating the characteristics of growth and habitat factors of Arundinaria faberi in different slope positions,the key growth factors of Arundinaria faberi were identified by correlation heat map.The results showed that:1) The air temperature and relative humidity tended to decrease with the increase of the slope position,while the wind speed and solar radiation intensity increased with the increase of the slope position.2) The soil particle composition of different slope positions was mainly composed of silt particles.The soil bulk density increased with the increase of the slope position.The soil moisture content,large aggregate content and soil chemical indicators all increased first and then decreased with the increase of the slope position.The meadow soil was obviously acidic,and the soil quality level reflected by the physical and chemical characteristics of the middle slope soil was relatively higher.3) With the increase of the slope position,the morphology and community characteristics of Arundinaria faberi showed a significant deterioration trend.4) Correlation heat map analysis showed that air temperature,solar radiation intensity,wind speed,soil bulk density and available phosphorus had a great influence on the corresponding growth characteristics of Arundinaria faberi among which air temperature,solar radiation intensity,wind speed and soil bulk density were the most influential key factor for growth.

Key words： subalpine meadow; Arundinaria faberi; slope position; environmental factors; growth effects

Cite this article

Keyu YAN , Pingping CHEN , Jianxing LI , Limei ZHANG , Hui LIU , Zhengfa CHEN . Habitat Characteristics and Effects on Growth of Arundinaria faberi in Different Slope Positions of Subalpine Meadow[J]. Forest and Grassland Resources Research, 2023 , 0(2) : 70 -78 . DOI: 10.13466/j.cnki.lyzygl.2023.02.010

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