Katrin Fleischer
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View article: Modelling root exudation and plant-microbe interactions under CO <sub>2</sub> fertilization in a mature forest
Modelling root exudation and plant-microbe interactions under CO <sub>2</sub> fertilization in a mature forest Open
Root exudation, defined as labile carbon (C) allocation into soils through fine roots, is a substantial yet often overlooked pathway of the terrestrial carbon cycle. Root exudation is likely to increase under rising levels of atmospheric C…
View article: Supplementary material to "Modelling root exudation and plant-microbe interactions under CO <sub>2</sub> fertilization in a mature forest"
Supplementary material to "Modelling root exudation and plant-microbe interactions under CO <sub>2</sub> fertilization in a mature forest" Open
View article: Nitrogen deposition and climate drive plant nitrogen uptake while soil factors drive nitrogen use efficiency in terrestrial ecosystems
Nitrogen deposition and climate drive plant nitrogen uptake while soil factors drive nitrogen use efficiency in terrestrial ecosystems Open
The role of plants in sequestering carbon is a critical component in mitigating climate change. A key aspect of this role involves plant nitrogen (N) uptake (Nup) and N use efficiency (NUE), as these factors directly influence the capacity…
View article: Integrating belowground recovery into tropical forest restoration design and monitoring
Integrating belowground recovery into tropical forest restoration design and monitoring Open
There is growing recognition that tropical forest restoration is key for sequestering carbon and enhancing ecosystem resilience. Soils, roots, and soil biota are central to ecosystem function and services, but belowground recovery is large…
View article: Including the phosphorus cycle into the LPJ-GUESS dynamic global vegetation model (v4.1, r10994) – global patterns and temporal trends of N and P primary production limitation
Including the phosphorus cycle into the LPJ-GUESS dynamic global vegetation model (v4.1, r10994) – global patterns and temporal trends of N and P primary production limitation Open
Phosphorus (P) is a critical macronutrient for plant growth, often limiting plant production in areas where plant demand is higher than soil supply. In contrast to nitrogen (N), P cannot be sourced from the atmosphere; therefore, where it …
View article: Rainfall seasonality shapes belowground root trait dynamics in an Amazonian tropical rainforest: A test of the stress‐dominance hypothesis
Rainfall seasonality shapes belowground root trait dynamics in an Amazonian tropical rainforest: A test of the stress‐dominance hypothesis Open
The stress‐dominance hypothesis (SDH) predicts that trait variation at the community level increases with the availability of limiting resources, driving spatial and temporal patterns in above‐ground plant functional trait expression. Here…
View article: Nitrogen deposition and climate drive plant nitrogen uptake while soil factors drive nitrogen use efficiency in terrestrial ecosystems
Nitrogen deposition and climate drive plant nitrogen uptake while soil factors drive nitrogen use efficiency in terrestrial ecosystems Open
The role of plants in sequestering carbon is a critical component in mitigating climate change. A key aspect of this role involves plant nitrogen (N) uptake (Nup) and N use efficiency (NUE), as these factors directly influence the capacity…
View article: Simulated sensitivity of the Amazon rainforest to extreme drought
Simulated sensitivity of the Amazon rainforest to extreme drought Open
The Amazon rainforest is highly biodiverse and has the largest extent of the remaining intact tropical forests in the world. To this day, undisturbed tropical forests act as a carbon sink by taking up about 15% of anthropogenic carbon emis…
View article: Including the Phosphorus cycle into the LPJ-GUESS Dynamic Global Vegetation Model (v4.1, r10994) – Global patterns and temporal trends of N and P primary production limitation
Including the Phosphorus cycle into the LPJ-GUESS Dynamic Global Vegetation Model (v4.1, r10994) – Global patterns and temporal trends of N and P primary production limitation Open
Phosphorus (P) is a critical macronutrient for plant growth, often limiting plant production in areas where plant demand is higher than soil supply. In contrast to nitrogen (N), P cannot be sourced from the atmosphere, therefore where it i…
View article: Carbon-phosphorus cycle models overestimate CO <sub>2</sub> enrichment response in a mature <i>Eucalyptus</i> forest
Carbon-phosphorus cycle models overestimate CO <sub>2</sub> enrichment response in a mature <i>Eucalyptus</i> forest Open
The importance of phosphorus (P) in regulating ecosystem responses to climate change has fostered P-cycle implementation in land surface models, but their CO 2 effects predictions have not been evaluated against measurements. Here, we perf…
View article: Non-matching predictions from different models simulating the effects of elevated atmospheric CO2 on the Amazon forest&#8217;s functional diversity
Non-matching predictions from different models simulating the effects of elevated atmospheric CO2 on the Amazon forest’s functional diversity Open
The continuous rising of atmospheric carbon dioxide (CO2) concentration is undoubtedly affecting the resilience of tropical forests worldwide. However, the magnitude of such effects is poorly known, limiting our capacity to assess the vuln…
View article: Mapping Phosphorus Forms in the Pan-Amazon Region: A Machine Learning Approach
Mapping Phosphorus Forms in the Pan-Amazon Region: A Machine Learning Approach Open
Phosphorus (P) is a key driver of terrestrial productivity. However, the lack of spatial data on various P forms in soils hinders the large-scale application of process-based vegetation models. To address this, we used a model selection ap…
View article: Amazonian understory response to elevated CO2
Amazonian understory response to elevated CO2 Open
The response of plants to increasing atmospheric CO2 concentration depends on several factors such as life history of specific species, availability of water, nutrients and light, and the ecological context that the plants are found. Altho…
View article: Effects of soil phosphorus on root exudates in central Amazonia
Effects of soil phosphorus on root exudates in central Amazonia Open
Plants in tropical forests are thought to allocate a substantial portion of their photosynthetically fixed carbon (C) to the rhizosphere as exudates. These exudates serve multiple functions, including the mobilization of soil nutrients suc…
View article: Toward a coordinated understanding of hydro‐biogeochemical root functions in tropical forests for application in vegetation models
Toward a coordinated understanding of hydro‐biogeochemical root functions in tropical forests for application in vegetation models Open
Summary Tropical forest root characteristics and resource acquisition strategies are underrepresented in vegetation and global models, hampering the prediction of forest–climate feedbacks for these carbon‐rich ecosystems. Lowland tropical …
View article: In situ short‐term responses of Amazonian understory plants to elevated CO<sub>2</sub>
In situ short‐term responses of Amazonian understory plants to elevated CO<sub>2</sub> Open
The response of plants to increasing atmospheric CO 2 depends on the ecological context where the plants are found. Several experiments with elevated CO 2 (eCO 2 ) have been done worldwide, but the Amazonian forest understory has been negl…
View article: Reference maps of soil phosphorus for the pan-Amazon region
Reference maps of soil phosphorus for the pan-Amazon region Open
Phosphorus (P) is recognized as an important driver of terrestrial primary productivity across biomes. Several recent developments in process-based vegetation models aim at the concomitant representation of the carbon (C), nitrogen (N), an…
View article: Nitrogen deposition and climate drive plant nitrogen uptake in terrestrial ecosystems
Nitrogen deposition and climate drive plant nitrogen uptake in terrestrial ecosystems Open
The role of plants in sequestering atmospheric carbon dioxide is a critical component in mitigating the adverse effects of climate change. A key aspect of this role involves plant nitrogen (N) uptake (Nup) and N use efficiency (NUE), as th…
View article: Comment on essd-2023-272
Comment on essd-2023-272 Open
Abstract. Phosphorus (P) is recognized as an important driver of terrestrial primary productivity across biomes. Several recent developments in process-based vegetation models aim at the concomitant representation of the c…
View article: Modeling the carbon costs of plant phosphorus acquisition in Amazonian forests
Modeling the carbon costs of plant phosphorus acquisition in Amazonian forests Open
Plants growing in low phosphorus (P) soils, such as in the predominant soils of Amazonia, are believed to devote more energy to acquiring P through absorptive root production, symbionts, and root exudates than plants in more fertile soils.…
View article: Supplementary material to "Reference maps of soil phosphorus for the pan-Amazon region"
Supplementary material to "Reference maps of soil phosphorus for the pan-Amazon region" Open
View article: Reference maps of soil phosphorus for the pan-Amazon region
Reference maps of soil phosphorus for the pan-Amazon region Open
Phosphorus (P) is recognized as an important driver of terrestrial primary productivity across biomes. Several recent developments in process-based vegetation models aim at the concomitant representation of the carbon (C), nitrogen (N) and…
View article: Modelling soil phosphorus cycle feedbacks in old-growth and regrowing tropical forests in Amazonia
Modelling soil phosphorus cycle feedbacks in old-growth and regrowing tropical forests in Amazonia Open
Soil nutrient availability is a key constraint on tropical forest growth. On highly weathered soils, intact forests' carbon-nutrient cycles have developed over pedogenic time scales, leading to tight nutrient cycling of some depleted eleme…
View article: Confronting models with data: carbon-phosphorus interaction under elevated CO2 in a mature forest ecosystem (EucFACE)
Confronting models with data: carbon-phosphorus interaction under elevated CO2 in a mature forest ecosystem (EucFACE) Open
The importance of phosphorus (P) in plant function and ecosystem biogeochemistry has led to the addition of a P cycle to a range of vegetation models, but the predictions of these P-enabled models have rarely been evaluated with ecosystem-…
View article: Modeling the effect of elevated CO2 on root exudation and ecosystem carbon storage in mature forests
Modeling the effect of elevated CO2 on root exudation and ecosystem carbon storage in mature forests Open
Increased atmospheric carbon dioxide (CO2) is known to enhance leaf-level photosynthesis. Following the carbon fertilization hypothesis, the increased photosynthetic assimilation may lead to an increase in plant biomass, therefo…
View article: Estimates of soil nutrient limitation on the <scp>CO<sub>2</sub></scp> fertilization effect for tropical vegetation
Estimates of soil nutrient limitation on the <span>CO<sub>2</sub></span> fertilization effect for tropical vegetation Open
The CO2 fertilization effect in tropical forests is a key factor for the global land carbon sink. We show that the normalized CO2 effect on tropical vegetation carbon was c. 70% lower in seedling CO2 experi…
View article: Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation
Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation Open
Data for CO2 fertilization experiments and CMIP6 model simulations used in publication: "Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation"
View article: Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation
Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation Open
Data for CO2 fertilization experiments and CMIP6 model simulations used in publication: "Estimates of soil nutrient limitation on the CO2 fertilization effect for tropical vegetation"
View article: Diverging simulated effects of future drought stress on the Amazon rainforest&#160;
Diverging simulated effects of future drought stress on the Amazon rainforest  Open
<p>The Amazon rainforest is the largest intact tropical forest ecosystem and stores about 120 Pg of carbon. To this day, it acts as a carbon sink by taking up carbon from the atmosphere, however, long-term observations show a decline…
View article: Modeling soil-microbial nutrient cycling feedbacks to elevated CO2 concentrations in old-growth tropical forest sites&#160;
Modeling soil-microbial nutrient cycling feedbacks to elevated CO2 concentrations in old-growth tropical forest sites  Open
<p>Nutrient cycles are tightly linked to the carbon cycle in tropical forests, controlling its responses to environmental change such as elevated CO<sub>2</sub> concentrations (eCO<sub>2</sub>). In tropical we…