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Juniper (Juniperus virginiana) encroachment into grassland results in increased trace-element inputs.

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Title: Juniper (Juniperus virginiana) encroachment into grassland results in increased trace-element inputs.
Authors: Primka IV, Edward J.1,2 (AUTHOR) edward.primka@cnu.edu, Chen, Shujun3,4 (AUTHOR) csfuchen@nwafu.edu.cn, Wan, Lingyun5 (AUTHOR), Du, Daolin5 (AUTHOR), Zhang, Hailin6 (AUTHOR), Will, Rodney1 (AUTHOR), Zou, Chris B.1 (AUTHOR)
Source: Plant & Soil. Dec2024, Vol. 505 Issue 1, p199-208. 10p.
Subjects: Woody plants, Throughfall, Junipers, Manganese, Grasslands
Abstract: Background and aims: Woody plant encroachment poses a significant threat to grasslands globally, and in the southcentral USA, juniper (Juniperus virginiana) is rapidly taking over large areas of grasslands. Despite ongoing research, the reasons behind the rapid encroachment of juniper species in Oklahoma remain elusive. We hypothesized that the interaction between juniper canopy, aeolian, and wet-deposition processes lead to a modification in trace-element inputs through stemflow and throughfall. This, in turn, plays a crucial role in determining the success of juniper encroachment. Methods: We measured the influx of trace-elements in stemflow and throughfall beneath juniper canopies of different sizes, contrasting the results with those obtained under ambient precipitation. Results: Our research unveiled a significant influence of the juniper canopy on trace-element inputs via stemflow and throughfall. Specifically, there was a significant increase in manganese, boron, and chlorine inputs, coupled with a decrease in copper inputs. Additionally, there was an increase in most cations and sulfate. Results: Our results indicate that juniper encroachment alters the profile of trace-element, cation, and anion inputs beneath their canopies. Increased levels of manganese and reduction of copper inputs into the ecosystem may enhance the juniper growth, creating a positive feedback mechanism that could contribute to the success of juniper and other woody encroachers. [ABSTRACT FROM AUTHOR]
Copyright of Plant & Soil is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Juniper (Juniperus virginiana) encroachment into grassland results in increased trace-element inputs.
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  Data: <searchLink fieldCode="JN" term="%22Plant+%26+Soil%22">Plant & Soil</searchLink>. Dec2024, Vol. 505 Issue 1, p199-208. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Woody+plants%22">Woody plants</searchLink><br /><searchLink fieldCode="DE" term="%22Throughfall%22">Throughfall</searchLink><br /><searchLink fieldCode="DE" term="%22Junipers%22">Junipers</searchLink><br /><searchLink fieldCode="DE" term="%22Manganese%22">Manganese</searchLink><br /><searchLink fieldCode="DE" term="%22Grasslands%22">Grasslands</searchLink>
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  Data: Background and aims: Woody plant encroachment poses a significant threat to grasslands globally, and in the southcentral USA, juniper (Juniperus virginiana) is rapidly taking over large areas of grasslands. Despite ongoing research, the reasons behind the rapid encroachment of juniper species in Oklahoma remain elusive. We hypothesized that the interaction between juniper canopy, aeolian, and wet-deposition processes lead to a modification in trace-element inputs through stemflow and throughfall. This, in turn, plays a crucial role in determining the success of juniper encroachment. Methods: We measured the influx of trace-elements in stemflow and throughfall beneath juniper canopies of different sizes, contrasting the results with those obtained under ambient precipitation. Results: Our research unveiled a significant influence of the juniper canopy on trace-element inputs via stemflow and throughfall. Specifically, there was a significant increase in manganese, boron, and chlorine inputs, coupled with a decrease in copper inputs. Additionally, there was an increase in most cations and sulfate. Results: Our results indicate that juniper encroachment alters the profile of trace-element, cation, and anion inputs beneath their canopies. Increased levels of manganese and reduction of copper inputs into the ecosystem may enhance the juniper growth, creating a positive feedback mechanism that could contribute to the success of juniper and other woody encroachers. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Plant & Soil is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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