Investigation of Physicochemical Properties in Connection with Distribution of Cordyceps Sinensis in Xiahe County of Gansu Province

CHANG Yuwei; HE Shuling; MA Lingfa; YANG Jingjun; FU Yuhong

doi:10.13961/j.cnki.stbctb.2015.06.004

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Investigation of Physicochemical Properties in Connection with Distribution of Cordyceps Sinensis in Xiahe County of Gansu Province

- Investigation of Physicochemical Properties in Connection with Distribution of Cordyceps Sinensis in Xiahe County of Gansu Province
- Bulletin of Soiland Water Conservation Vol. 35, Issue 6, Pages: 21-25(2015)
- 作者机构：
  
  甘肃民族师范学院高寒生态研究所, 甘肃合作,747000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.06.004
  CLC：
- Published：2015
- 稿件说明：
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CHANG Yuwei, HE Shuling, MA Lingfa, et al. Investigation of Physicochemical Properties in Connection with Distribution of Cordyceps Sinensis in Xiahe County of Gansu Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 21-25.
DOI：

CHANG Yuwei, HE Shuling, MA Lingfa, et al. Investigation of Physicochemical Properties in Connection with Distribution of Cordyceps Sinensis in Xiahe County of Gansu Province[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 21-25. DOI： 10.13961/j.cnki.stbctb.2015.06.004.

摘要

[目的] 对甘肃省夏河地区冬虫夏草分布的土壤理化因子进行分析

为保护冬虫夏草生境

实现其野生资源可持续利用及半人工培养提供科学依据。[方法] 采用样方法研究土壤理化因子对冬虫夏草分布的影响。[结果] 在不同深度层次的土壤中

pH值、全氮、全磷、速效磷和速效钾的差异不显著

土壤含水量、有机质、土壤水解氮、和全钾的差异极显著;5-10 cm土壤中

土壤含水量、pH值、全磷极显著影响冬虫夏草分布

虫草数量最多

虫体形态表征也最好;第1主成分中全磷是影响冬虫夏草种群分布的土壤理化性质的重要因子

在第2主成分中

pH值是影响冬虫夏草种群分布的土壤理化性质的重要因子

第3主成分中

土壤含水量是影响冬虫夏草种群分布的土壤理化性质的重要因子。[结论] 冬虫夏草对土壤层、土壤含水量、土壤酸碱性和全磷等土壤因子条件有着严格的要求

影响冬虫夏草分布的土壤理化因子次序为:AP >pH值 >WC(土壤含水量) >TK >TN >OM(有机质) >HN(水解氮) >TP >AK。

Abstract

[Objective] Soil physical and chemical properties that might affect the distribution of Cordyceps sinensis in Xiahe area of Gansu Province were investigated. To provide supports for habitat preservation and sustainable exploitation of Cordyceps sinensis.[Methods] Quadrate method was used to study the effects of soil physical and chemical properties on the distribution of Cordyceps sinensis population.[Results] The results showed pH value

total nitrogen

total phosphorus

available phosphorus and available potassium in all investigated soil depths had no significant effects on the distribution of Cordyceps sinensis population

whereas the effects of water content

organic matter

soil hydrolyzable nitrogen and total potassium were significant different. In the depth of 5-10 cm

water content

pH and total phosphorus had significant effects on the presence number of Cordyceps Sinensis. In this layer

its number was relatively great and the shape looked well. Principal component analysis showed that

total phosphorus was an important factor that affect the population distribution of Cordyceps sinensis presented in the first principal component; pH value was another important factor in the second principal component; and water content was also an important factor in the third principal.[Conclusion] Cordyceps sinensis had strict habitat requirements

especially water content

soil pH and total phosphorus can limit its distribution

effect of soil physic and chemical factors on distribution of Cordyceps sinensis in order:AP >pH >WC(water content) >TK >TN >OM(organic matter) >HN(hydrolyzable niteogen) >TP >AK.

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references

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