Lantana invasion alters soil nitrogen pools and processes in the tropical dry deciduous forest of India

Sharma, Gyan Prakash; Raghubanshi, A. S.

doi:10.1016/j.apsoil.2009.03.002

Cited by 51 publications

(50 citation statements)

References 63 publications

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“…In a greenhouse study, soil pH under M. vimineum was significantly higher than that of soil without the exotic, and in invaded forests they found higher pH, phosphorus, levels of several cations, and lower aluminum beneath dense M. vimineum than when M. vimineum was not present. Similarly, Lantana camara invasion in India is correlated with increases in soil available nitrogen, ammonification, nitrification rate, and nitrogen mineralization, which in turn is correlated with high nitrogen, low lignin, low lignin:nitrogen ratios, and low carbon:nitrogen ratios in L. camara litter (Sharma and Raghubanshi 2009). Blank (2008) found that invasion by Bromus tectorum, a Eurasian annual grass that has spread throughout western North America, increased the availability of manganese, nitrogen, phosphorus, copper, iron, calcium, and potassium.…”

Section: Direct Effects Of Invasive Plants-litter and Exudatesmentioning

confidence: 94%

Direct and Indirect Effects of Invasive Plants on Soil Chemistry and Ecosystem Function

2010

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Invasive plants have a multitude of impacts on plant communities through their direct and indirect effects on soil chemistry and ecosystem function. For example, plants modify the soil environment through root exudates that affect soil structure, and mobilize and/or chelate nutrients. The long-term impact of litter and root exudates can modify soil nutrient pools, and there is evidence that invasive plant species may alter nutrient cycles differently from native species. The effects of plants on ecosystem biogeochemistry may be caused by differences in leaf tissue nutrient stoichiometry or secondary metabolites, although evidence for the importance of allelochemicals in driving these processes is lacking. Some invasive species may gain a competitive advantage through the release of compounds or combinations of compounds that are unique to the invaded community—the “novel weapons hypothesis.” Invasive plants also can exert profound impact on plant communities indirectly through the herbicides used to control them. Glyphosate, the most widely used herbicide in the world, often is used to help control invasive weeds, and generally is considered to have minimal environmental impacts. Most studies show little to no effect of glyphosate and other herbicides on soil microbial communities. However, herbicide applications can reduce or promote rhizobium nodulation and mycorrhiza formation. Herbicide drift can affect the growth of non-target plants, and glyphosate and other herbicides can impact significantly the secondary chemistry of plants at sublethal doses. In summary, the literature indicates that invasive species can alter the biogeochemistry of ecosystems, that secondary metabolites released by invasive species may play important roles in soil chemistry as well as plant-plant and plant-microbe interactions, and that the herbicides used to control invasive species can impact plant chemistry and ecosystems in ways that have yet to be fully explored.

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Section: Direct Effects Of Invasive Plants-litter and Exudatesmentioning

confidence: 94%

Direct and Indirect Effects of Invasive Plants on Soil Chemistry and Ecosystem Function

2010

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“…Invasion can further interact with other drivers of global change such as N deposition, as discussed above. Moreover, some studies have reported that the effects of plant invasion on soil facilitate further invasion by the initial invasive species or by other species (Allison and Vitousek, 2004;Sharma and Raghubanshi, 2009), although not all studies provide clear results on this topic (Yelenik and Levine, 2011). Thus, alien success in nutrient-rich soils is related to higher growth rates, low C-N and C-P ratios, fast plasticity in resource acquisition capacity and high reproductive investment; in nutrient-poor soils, high invasive success is related to conservative use of resources including nutrients.…”

Section: Impacts Of Plant Invasion On the Availability And Stoichiomementioning

confidence: 99%

The Role of Plants in the Effects of Global Change on Nutrient Availability and Stoichiometry in the Plant-Soil System

2012

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“…Plant invasion increased nutrient pool sizes (carbon and nitrogen) and decomposition rates of belowground and aboveground in its invaded regions than native range (Liao et al, 2007). Lantana camara L., invasion in India resulted in increased soil nitrogen availability, higher ammonification and nitrification rates (Sharma & Raghubanshi, 2009). Likewise, Alliaria petiolata invading soils in the North American temperate deciduous forest were characterized by the higher availability of nitrogen, phosphorous, calcium and magnesium and higher soil pH.…”

Section: Influence Of Soil Enzymes and Nutrients On Plant Invasionmentioning

confidence: 94%

Role and influence of soil microbial communities on plant invasion

Ravi

Muthukumar

2017

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Abstract. It is known that plant invasions are of major concern as they result in loss of biodiversity and alterations in ecosystem processes and functions. Although numerous mechanisms have been postulated to find out the reasons behind plant invasiveness, the actual and precise mechanism is still obscure. Soil microbes are considered as one of the important determinants of plant growth and establishment. Plant invasion leads to changes in the composition and structure of soil microorganisms. Most of the earlier studies have focused on the aboveground mechanisms of plant invasion. Recently the belowground mechanisms for plant invasion are being investigated. In this review, we focus on the various hypotheses related to soil microbes in either enhancing or suppressing plant invasions. The interactions between soil microbes with native and non-native plant species, the role of the plant-soil feedback system in the invasion and its impact, the function of mycorrhizal and bacterial symbiosis in plant species invasion and the role of soil biota and changes brought about in soil nutrient cycling and soil enzymes due to plant invasion are also discussed.

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Lantana invasion alters soil nitrogen pools and processes in the tropical dry deciduous forest of India

Cited by 51 publications

References 63 publications

Direct and Indirect Effects of Invasive Plants on Soil Chemistry and Ecosystem Function

Direct and Indirect Effects of Invasive Plants on Soil Chemistry and Ecosystem Function

The Role of Plants in the Effects of Global Change on Nutrient Availability and Stoichiometry in the Plant-Soil System

Role and influence of soil microbial communities on plant invasion

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