Abstract
An outdoor pot experiment was conducted to study influence of simulated acid rain on chemical form and phytoavailability of Cd and Zn in purple soils.Results show that simulated acid rain aggravated combined hazard of Cd and Zn obviously.Acid rain not only affected contents of exchangeable Cd and Zn in purple soil,but also facilitated transformation of the elements from one form to others(exchangeable,carbonate-bonded and Fe-Mn oxide-bonded).The path analysis indicated that it also altered contribution coefficients of different forms of Cd and Zn to contents of Cd and Zn in the lettuce,thus directly affecting phytoavailability of the elements.Comparison of Cd-Zn combined treatment with single Cd treatment,low concentration of Zn stimulated lettuce uptake of Cd and hence improved Cd phytoavailability in the purple soil,while,Zn,high in concentration had a reverse effect.
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Claims 7
Claim · model-written summary
Simulated acid rain aggravated the combined hazard of Cd and Zn in purple soil.
- Taxon
- lettuce
Lactuca sativae3 - Treatment
- simulated acid raine1
- Outcome
- combined hazard of Cd and Zne1
- Direction
- aggravatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results show that simulated acid rain aggravated combined hazard of Cd and Zn obviously”
e3“The path analysis indicated that it also altered contribution coefficients of different forms of Cd and Zn to contents of Cd and Zn in the lettuce,thus directly affecting phytoavailability of the elements”
Claim · model-written summary
Acid rain facilitated transformation of Cd and Zn from one soil form to others.
- Taxon
- lettuceLactuca sativae3
- Treatment
- Acid raine2
- Outcome
- transformation of the elements from one form to otherse2
- Direction
- facilitatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Acid rain not only affected contents of exchangeable Cd and Zn in purple soil,but also facilitated transformation of the elements from one form to others(exchangeable,carbonate-bonded and Fe-Mn oxide-bonded)”
e3“The path analysis indicated that it also altered contribution coefficients of different forms of Cd and Zn to contents of Cd and Zn in the lettuce,thus directly affecting phytoavailability of the elements”
Claim · model-written summary
Acid rain affected contents of exchangeable Cd and Zn in purple soil.
- Taxon
- lettuceLactuca sativae3
- Treatment
- Acid raine2
- Outcome
- contents of exchangeable Cd and Zne2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Acid rain not only affected contents of exchangeable Cd and Zn in purple soil,but also facilitated transformation of the elements from one form to others(exchangeable,carbonate-bonded and Fe-Mn oxide-bonded)”
e3“The path analysis indicated that it also altered contribution coefficients of different forms of Cd and Zn to contents of Cd and Zn in the lettuce,thus directly affecting phytoavailability of the elements”
Claim · model-written summary
Acid rain altered the contribution of Cd and Zn forms to lettuce Cd and Zn contents, directly affecting phytoavailability.
- Taxon
- lettuceLactuca sativae3
- Compound
- Cd and Zne3
- Outcome
- phytoavailability of the elementse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The path analysis indicated that it also altered contribution coefficients of different forms of Cd and Zn to contents of Cd and Zn in the lettuce,thus directly affecting phytoavailability of the elements”
Claim · model-written summary
Low Zn concentration stimulated lettuce uptake of Cd relative to single Cd treatment.
- Taxon
- lettuceLactuca sativae4
- Treatment
- low concentration of Zne4
- Outcome
- lettuce uptake of Cde4
- Direction
- stimulatede4
- Comparator
- single Cd treatmente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Comparison of Cd-Zn combined treatment with single Cd treatment,low concentration of Zn stimulated lettuce uptake of Cd and hence improved Cd phytoavailability in the purple soil,while,Zn,high in concentration had a reverse effect”
Claim · model-written summary
Low Zn concentration improved Cd phytoavailability in purple soil compared with single Cd treatment.
- Taxon
- lettuceLactuca sativae4
- Treatment
- low concentration of Zne4
- Outcome
- Cd phytoavailabilitye4
- Direction
- improvede4
- Comparator
- single Cd treatmente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Comparison of Cd-Zn combined treatment with single Cd treatment,low concentration of Zn stimulated lettuce uptake of Cd and hence improved Cd phytoavailability in the purple soil,while,Zn,high in concentration had a reverse effect”
Claim · model-written summary
High Zn concentration had a reverse effect on lettuce Cd uptake relative to low Zn.
- Taxon
- lettuceLactuca sativae4
- Treatment
- Zn,high in concentratione4
- Outcome
- lettuce uptake of Cde4
- Direction
- reverse effecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Comparison of Cd-Zn combined treatment with single Cd treatment,low concentration of Zn stimulated lettuce uptake of Cd and hence improved Cd phytoavailability in the purple soil,while,Zn,high in concentration had a reverse effect”
The same questions in other papers
zinc atom · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results
1 paper in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 papers →rainfall · nutrient: content · Lactuca sativa (garden lettuce)Results agree
1 paper in the same direction as this paper
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.