Plant phenology and soil fertility effects on below-ground carbon allocation for an annual (Bromus madritensis) and a perennial (Bromus erectus) grass species

Warembourg, F. R.; Estelrich, H. D.

doi:10.1016/s0038-0717(01)00033-5

Cited by 74 publications

(56 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…elongation) of the maize during a period of active root growth, but there is lower allocation to the roots as plant becomes mature. This is similar to the plant:soil C dynamics observed previously during the cultivation of rice (Lu et al 2002), wheat and barley (Keith et al 1986;Gregory and Atwell 1991;Swinnen et al 1994Swinnen et al , 1995 and maize (Yang et al 2006), but not for pasture grasses (Kuzyakov et al 1999;Kuzyakov 2001;Warembourg and Estelrich 2001).…”

Section: Discussionsupporting

confidence: 88%

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

et al. 2013

View full text Add to dashboard Cite

Aims Pulse labeling of crops using 13 C is often employed to trace photosynthesized carbon (C) within crop-soil systems. However, few studies have compared the C distribution for different labeling periods. The overall aim of this study was to determine the length of the monitoring interval required after 13 C-pulse labeling to quantify photosynthate C allocation into plant, soil and rhizosphere respiration pools for the entire growing season of maize (Zea mays L.). Methods Pot grown maize was pulse-labeled with 13 CO 2 (98 at.%) at the beginning of emergence, elongation, heading and grainfilling growth stages. The routing of 13 C into shoot and root biomass, soil CO 2 flux and soil organic carbon (SOC) pools was monitored for 27-days after 13 C-pulse labeling at the beginning of each growth stage. Results The majority of the 13 C was recovered after 27 d in the maize shoots, i.e., 57 %, 53 %, 70 % and 80 %, at the emergence, elongation, heading, and grainfilling stages, respectively. More 13 C was recovered in the root biomass at elongation (27 %) compared to the least at the grainfilling stage (3 %). The amount recovered in the soil was the smallest pool of 13 C at emergence (2.3 %), elongation (3.8 %), heading and grainfilling (less than 2 %). The amount of 13 C recovered in rhizosphere respiration, i.e. 13 CO 2 , was greatest at emergence (26 %), and similar at the elongation, heading and grainfilling stages (~16 %). Conclusions At least 24 days is required to effectively monitor the recovery of 13 C after pulse labeling with 13 CO 2 for maize in plant and soil pools. The recovery of 13 C differed between growth stages and corresponded to the changing metabolic requirements of the plant, which indicated labeling for the entire growth season would more accurately quantify the C budget in plantsoil system.

show abstract

Section: Discussionsupporting

confidence: 88%

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

et al. 2013

View full text Add to dashboard Cite

show abstract

“…This relationship between nutrient availability and growth investment confirms many earlier studies (e.g. Warembourg and Estelrich, 2001;Wang et al, 2008;Gao et al, 2011;Zhou et al, 2014). This shift from below-to aboveground was accompanied by a doubling of the N-use efficiency; the grassland inside the colony supported ∼ 2 times more biomass and biomass C per g N, compared to the almost unvegetated area outside the colony.…”

Section: Shifts From Belowground To Aboveground N and C And N-use Effsupporting

confidence: 89%

“…Warembourg and Estelrich, 2001;Wang et al, 2008;Gao et al, 2011;Zhou et al, 2014). Therefore we expected to find a shift from belowground to aboveground biomass, C and N stocks inside the seagull colony, compared to outside the colony.…”

Section: N I W Leblans Et Al: Effects Of Seabird Nitrogen Input Omentioning

confidence: 95%

Effects of seabird nitrogen input on biomass and carbon accumulation after 50 years of primary succession on a young volcanic island, Surtsey

et al. 2014

View full text Add to dashboard Cite

Abstract. What happens during primary succession after the first colonizers have occupied a pristine surface largely depends on how they ameliorate living conditions for other species. For vascular plants the onset of soil development and associated increase in nutrient (mainly nitrogen; N) and water availability is especially important. Here, we report the relationship between N accumulation and biomass and ecosystem carbon (C) stocks in a 50-year-old volcanic island, Surtsey, Iceland, where N stocks are still exceptionally low. However, a 28-year-old seagull colony on the island provided nutrient-enriched areas, which enabled us to assess the relationship between N stock and biomass and ecosystem C stocks across a much larger range in N stock. Further, we compared areas on shallow and deep tephra sands as we expected that deep-rooted systems would be more efficient in retaining N. The sparsely vegetated area outside the colony had accumulated 0.7 kg N ha −1 yr −1 , which was ca. 50-60 % of the estimated N input rate from wet deposition. This approximates values for systems under low N input and bare dune habitats. The seagulls have added, on average, 47 kg N ha −1 yr −1 , which induced a shift from belowground to aboveground in ecosystem N and C stocks and doubled the ecosystem N-use efficiency, determined as the ratio of biomass and C storage per unit N input. Soil depth did not significantly affect total N stocks, which suggests a high N retention potential. Both total ecosystem biomass and C stocks were strongly correlated with N stock inside the colony, which indicated the important role of N during the first steps of primary succession. Inside the colony, the ecosystem biomass C stocks (17-27 ton C ha −1 ) had reached normal values for grasslands, while the soil organic carbon (SOC) stocks (4-10 ton C ha −1 ) were only a fraction of normal grassland values. Thus, it will take a long time until the SOC stock reaches equilibrium with the current primary production, during which conditions for new colonists may change.

show abstract

“…All these features combined has been described as stress tolerance by Grime (Grime, 1977), in which selection favors traits that support retention and conservative use of acquired mineral nutrients (Warembourg and Estelrich, 2001). In this study, we will attempt to connect life history traits of two plant species, Leiothrix spiralis and L. vivipara, with their habitat characteristics, specifically analyzing the soil factors.…”

Section: Introductionmentioning

confidence: 99%

Soil factors effects on life history attributes of Leiothrix spiralis and Leiothrix vivipara (Eriocaulaceae) on rupestrian grasslands in Southeastern Brazil

Coelho¹,

Martins²,

Figueira³

et al. 2014

Braz. J. Biol.

View full text Add to dashboard Cite

In this study, we hypothesized that the life history traits of Leiothrix spiralis and L. vivipara would be linked to soil factors of the rupestrian grasslands and that rosette size would be influenced by soil moisture. Soil analyses were performed from five populations of L. spiralis and four populations of L. vivipara. In each area, three replicates were employed in 19 areas of occurrence of Leiothrix species, and we quantified the life history attributes. The microhabitats of these species show low favorability regarding to soil factors. During the dry season, their rosettes decreased in diameter due the loss of its most outlying leaves. The absence of seedlings indicated the low fecundity of both species. However, both species showed rapid population growth by pseudovivipary. Both L. spiralis and L. vivipara exhibit a kind of parental care that was quantified by the presence of connections between parental-rosettes and ramets. The findings of the present study show that the life history traits are linked to soil factors.Keywords: life history, mountain habitats, pseudovivipary, soil factors; water scarcity. Efeitos de fatores do solo nos atributos de história de vida deLeiothrix spiralis e Leiothrix vivipara (Eriocaulaceae) nos campos rupestres no Sudeste do Brasil.

show abstract

Plant phenology and soil fertility effects on below-ground carbon allocation for an annual (Bromus madritensis) and a perennial (Bromus erectus) grass species

Cited by 74 publications

References 31 publications

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

Investigation of photosynthate-C allocation 27 days after 13C-pulse labeling of Zea mays L. at different growth stages

Effects of seabird nitrogen input on biomass and carbon accumulation after 50 years of primary succession on a young volcanic island, Surtsey

Soil factors effects on life history attributes of Leiothrix spiralis and Leiothrix vivipara (Eriocaulaceae) on rupestrian grasslands in Southeastern Brazil

Contact Info

Product

Resources

About