Scholarlink

Background and aims <p><i>Hedera helix</i> subsp. <i>helix</i>, an evergreen climbing plant, is exposed to prolonged droughts in polluted urban areas. This study examines the effects of long-term soil water deficiency on the growth, morpho-biochemical characteristics, and particulate matter (PM) phytoremediation potential of <i>H</i>. <i>helix</i> leaves.</p> Methods <p>First, a three-year greenhouse experiment was conducted to assess the potential for mitigating long-term drought by adding SOM-enrichment amendments to the sandy, nutrient-poor soil. Then, a field experiment was followed to evaluate the effectiveness of air remediation of urban and peri-urban areas using the plant material tested. The biomass and plant organ growth, photosynthetic pigments content, leaf phenolic content, and nitrogen nutrition were verified. During field trials, analysis of water-insoluble PM fractions deposited on leaves was carried out. Leaf blade surface analysis was performed using scanning electron microscope (SEM).</p> Results <p>The applied moisture level-soil amendment treatments significantly affected root length and shoot biomass, but only soil additives did not have such a pronounced effect on root and shoot system. High chlorophyll content was found in plants grown in a substrate with 5% organic carbon, regardless of the level of soil water holding capacity applied. In contrast, SPAD results indicate significantly lower concentration of chlorophylls in the leaves of all 30% MWHC treatments plants. Total phenolic content in the leaves varied between 18.2 and 21.0&#xa0;mg/g FW. Leaf antocyanin content increased only in drought-exposed plants. The NBI index made it possible to demonstrate the effect of soil hydration on the plant nitrogen balance. Results shown that <i>H. helix</i> is a year-round remediation plant of air polluted with PM.</p> Conclusion <p><i>H. helix</i> has been shown to tolerate soil water deficit assuming soil enrichment with SOM additives. Its suitability for greening the surface of noise barriers is favorable feature due to the high phytoremediation potential of the plant material studied.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study of liana's response to drought stress and assessment of air remediation potential using different experimental models

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月10日

查看全文
  • Ewa Hanus-Fajerska,
  • Iwona Kamińska,
  • Cezary Kruszyna,
  • Katarzyna Kępka,
  • Kinga Zygmuntowicz,
  • Katarzyna Berent,
  • Arkadiusz Przybysz,
  • Krystyna Ciarkowska

摘要

Background and aims

Hedera helix subsp. helix, an evergreen climbing plant, is exposed to prolonged droughts in polluted urban areas. This study examines the effects of long-term soil water deficiency on the growth, morpho-biochemical characteristics, and particulate matter (PM) phytoremediation potential of H. helix leaves.

Methods

First, a three-year greenhouse experiment was conducted to assess the potential for mitigating long-term drought by adding SOM-enrichment amendments to the sandy, nutrient-poor soil. Then, a field experiment was followed to evaluate the effectiveness of air remediation of urban and peri-urban areas using the plant material tested. The biomass and plant organ growth, photosynthetic pigments content, leaf phenolic content, and nitrogen nutrition were verified. During field trials, analysis of water-insoluble PM fractions deposited on leaves was carried out. Leaf blade surface analysis was performed using scanning electron microscope (SEM).

Results

The applied moisture level-soil amendment treatments significantly affected root length and shoot biomass, but only soil additives did not have such a pronounced effect on root and shoot system. High chlorophyll content was found in plants grown in a substrate with 5% organic carbon, regardless of the level of soil water holding capacity applied. In contrast, SPAD results indicate significantly lower concentration of chlorophylls in the leaves of all 30% MWHC treatments plants. Total phenolic content in the leaves varied between 18.2 and 21.0 mg/g FW. Leaf antocyanin content increased only in drought-exposed plants. The NBI index made it possible to demonstrate the effect of soil hydration on the plant nitrogen balance. Results shown that H. helix is a year-round remediation plant of air polluted with PM.

Conclusion

H. helix has been shown to tolerate soil water deficit assuming soil enrichment with SOM additives. Its suitability for greening the surface of noise barriers is favorable feature due to the high phytoremediation potential of the plant material studied.