GC048
Invasive and expanding plant species and biogeochemistry: what do we know about emerging soil-microbial-plant systems in relation to soil chemistry and greenhouse gas flux?

Session ID#: 83840

Session Description:
Invasive and expanding plant species have profound effects on ecosystem processes: introduced trees affect riparian hydrology, invasive grasses alter fire regimes and the range expansion of shrubs changes grassland dynamics. However, there are still knowledge gaps to be filled regarding biogeochemical effects of plant invasions on soils, nutrient cycling and greenhouse gas fluxes that provide mechanisms maintaining invasive persistence and driving expansions. Information on soil-microbial-plant interactions at local and regional scales is needed to inform progressive management strategies to re-establish native plant communities, especially in the face of anthropogenic climate change. We solicit presentations coupling biogeochemical theory with either modeling studies or field experiments on plant invasions that integrate multiple scales of ecosystem science. Our session aims to answer: how do invasive plants influence soil physio-chemistry and nutrient cycling? How do invasions and expansions impact greenhouse gas flux? What effect do invasive plants have on the soil microbial community structure?
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1632 Land cover change [GLOBAL CHANGE]
1655 Water cycles [GLOBAL CHANGE]

Primary Convener:  Benjamin Duval, New Mexico Institute of Mining and Technology, Socorro, NM, United States
Conveners:  Jennie McLaren, University of Texas-El Paso, Biology, El Paso, United States and Daniel Cadol, New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, NM, United States
Primary Liaison:  Benjamin Duval, New Mexico Institute of Mining and Technology, Socorro, NM, United States
 
Will changing plant community structure mediate microbial homeostasis? (503318)
Jennie McLaren, University of Texas at El Paso, El Paso, TX, United States and Kate M Buckeridge, Lancaster University, Lancaster, United Kingdom; University of Edinburgh, Edinburgh, United Kingdom
 
Response of Soil Extracellular Enzyme Activities to Shrub Encroachment and Altered Precipitation in a Temperate Grassland (504893)
Damilare Akinyemi1, Yankun Zhu2, Haihua Shen2, Mengying Zhao3, Luhong Zhou4 and Jingyun Fang5, (1)Institute of Botany Chinese Academy of Sciences, Beijing, China, (2)Institute of Botany, Chinese Academy of Sciences, Beijing, China, (3)Institute of Botany, Chinese of Academy Sciences, Beijing, China, (4)IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, (5)Peking University, College of Urban and Environmental Sciences, Beijing, China
 
Changing Soil Fungal Composition and Soil Properties with Shrub Encroachment in Chihuahuan Desert Grasslands (553403)
Laura Ladwig, University of Wisconsin-Madison, Madison, WI, United States, Lukas P Bell-Dereske, Michigan State University, East Lansing, MI, United States, Scott L Collins, Department of Biology, MSC03-2020, University of New Mexico, Albuquerque, NM, United States, Kayce C Bell, Natural History Museum of Los Angeles, Los Angeles, CA, United States, Donald Lee Taylor, University of New Mexico Main Campus, Department of Biology, Albuquerque, NM, United States and Donald O Natvig, University of New Mexico, Albuquerque, NM, United States
 
Different microbial mechanisms for the enhanced methane emission by Spatina anglica and Phragmites australis in temperate tidal salt marsh. (572865)
Jinhyun Kim, Jaehyun Lee, Jeongeun Yun, Jongmin Ko, Yerang Yang and Hojeong Kang, Yonsei University, School of Civil and Environmental Engineering, Seoul, South Korea
See more of: Global Environmental Change
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