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Effects of Acid Rain on Plant Growth
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Effects of Acid Rain on Plant Growth
By Destiny Robertson
What were the problems issues addressed?
Problem
-Acid rain has been an environmental problem for decades due to rapid industrial development, increased energy demand, and larger emissions of acidic gas such as sulfur dioxides (SO2) and nitrogen oxides (NOx). Leading to acidification of soils and waters, forest decline, crop yield reduction, corrosion of buildings, monuments, statues etc. It has been lowered and controlled in Europe and North America but are still rising in many developing areas as of recently.
-Researchers found that a systemic assessment of growth-related traits across plants aboveground and belowground is lacking.
What were the specific research questions in the study?
Research Questions
-How would various plant growth-related traits respond to acid rain?
-Would these responses be altered with moderators?
-Would the acidity of acid rain interact with these moderators?
What methods did the authors use to investigate the research questions?
Methods
-Researchers performed a phylogenetically controlled meta-analysis of 755 observations from 69 independent studies.
Focus
Focus
Effects of acid rain were studied on six growth related traits, above ground biomass, belowground biomass, leaf biomass, stem biomass, height, and root length.
What were the answers to the research questions?
Answers
-Above ground and below ground plant parts responded differently
-The acidity of acid rain and acid rain interval had direct modulation effects of plant growth.
-There were interactions between acid rain pH and other acid rain characteristics and experimental characteristics indicating there were pH-dependent interaction patterns.
-The study highlights the pH-dependent interaction patterns that exist in the acid rain nitrogen and suflur inpu, plant recovery and soil acidification.
Image 1
a) Effects of acid rain on the siz growth-related traits.
Image 2
a) Bi-variate correlation between the percentage changes of each two grwoth related traits.
So what: Why are the answers important? Why does this information matter to my life?
So what
-Plants are found to be sensitive to acid rain be used as biosensors to monitor industrial or traffic-sourced pollution?
-Air quality affects everyone around the world, even if causes are isolated geographically.