欢迎访问《农学学报》,

农学学报 ›› 2022, Vol. 12 ›› Issue (3): 55-58.doi: 10.11923/j.issn.2095-4050.cjas2021-0133

所属专题: 生物技术 园艺

• 林学/园艺/园林/食用菌 • 上一篇    下一篇

野生太白贝母生境调查与根际土壤分析

丛晓峰1,2(), 陈昊1,2, 李为民1,2, 李丹3, 李思锋1,2()   

  1. 1陕西省西安植物园,西安 710061
    2陕西省植物资源保护与利用工程技术研究中心,西安 710061
    3国投生物科技投资有限公司,上海 200082
  • 收稿日期:2021-07-16 修回日期:2021-09-22 出版日期:2022-03-20 发布日期:2022-03-22
  • 通讯作者: 李思锋 E-mail:congxiaofeng312@xab.ac.cn;2561160763@qq.com
  • 作者简介:丛晓峰,男,1976年出生,辽宁东港人,助理研究员,本科,主要从事野生植物资源保护与利用。通信地址:710061 陕西省西安市翠华南路17号,E-mail: congxiaofeng312@xab.ac.cn
  • 基金资助:
    陕西省重点研发计划“太白贝母良种选育繁育及生态种植关键技术研究与示范推广”(2019ZDLSF04-01-02)

Habitat Investigation and Rhizosphere Soil Analysis of Wild Fritillaria taibaiensis

CONG Xiaofeng1,2(), CHEN Hao1,2, LI Weimin1,2, LI Dan3, LI Sifeng1,2()   

  1. 1Xi’an Botanical Garden, Xi’an 710061, Shaanxi, China
    2Shaanxi Engineering Research Centre for Conservation and Utilization of Botanical Resources, Xi’an 710061, Shaanxi, China
    3Sdic Biotech Investment Co., LTD., Shanghai 200082, China
  • Received:2021-07-16 Revised:2021-09-22 Online:2022-03-20 Published:2022-03-22
  • Contact: LI Sifeng E-mail:congxiaofeng312@xab.ac.cn;2561160763@qq.com

摘要:

为了解野生太白贝母的生境及根际土壤状况,对太白县等4个县域的野生太白贝母进行了实地调查。结果显示:太白贝母生于海拔2000~3300 m的山地草丛或林下,海拔是影响太白贝母生境适宜性最重要的生态因子,生境内植物分布具有明显的高海拔特征,乔木层多为落叶阔叶林,郁闭度较高,林下灌木层大多呈现稀疏状。不同产地太白贝母根际土壤pH的变异系数变化较小,仅为1.84%,呈中性土壤,土壤中的营养元素以及有机质含量变化较大,其中碱解氮的变异系数最大,为97.53%。野生太白贝母种群不连续、呈现破碎化零星分布。

关键词: 太白贝母, 生境, 海拔, 根际土壤

Abstract:

To understand the habitat and rhizosphere soil status of wild Fritillaria taibaiensis, a field survey was conducted in four counties in Shaanxi Province including Taibai County. The results showed that Fritillaria taibaiensis was found under mountain grass or forest at the altitude of 2000-3300 m, and the altitude was the most important ecological factor affecting the habitat suitability of Fritillaria taibaiensis. The plant distribution in the habitat had obvious high altitude characteristics. The tree layer was mostly deciduous broad-leaved forest with high canopy density, and the shrub layer under the forest was sparse. The variation coefficient of pH in the rhizosphere soil of Fritillaria taibaiensis from different producing areas changed a little, which was only 1.84% and showing that the soil was neutral. The content of nutrient elements and organic matters in the soil changed greatly, and the variation coefficient of alkali hydrolyzable nitrogen was the largest of 97.53%. The population of wild Fritillaria taibaiensis was discontinuous, fragmented and sporadic.

Key words: Fritillaria taibaiensis, habitat, altitude, rhizosphere soil

中图分类号: