Changes in nitrogen resorption traits of six temperate grassland species along a multi-level N addition gradient

Huang, Juying; Zhu, Xun; Yuan, Zhengqiang; Shi, Sun; Li, Xin; Li, Linghao

doi:10.1007/s11104-008-9565-9

Cited by 63 publications

(62 citation statements)

References 28 publications

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“…Additionally, because PVS allows for litter inputs throughout the sampling times due to temporal changes in plant composition, these inputs may promote continuous renewal of the organic matter pool and, consequently, sustained abiotic N fixation. Notably, in this study, the higher litter N stock in PVS was likely affected by the higher N availability from fertilizer use, indicating that the N returned to the soil via litter production would also increase (Huang et al, 2008;Kobe et al, 2005;Ratnam et al, 2008), further stimulating chemical N fixation in soil organic matter, the most stable pool of soil N. Thus, litter N stocks could provide a useful indicator of biotic and abiotic incorporation of N into PVS. …”

Section: N Soil Retention and Plant N Stock At Pvsmentioning

confidence: 72%

“…Long-term N fertilization can directly influence plant N dynamics and competitive interactions (Baer et al, 2002;Huang et al, 2008;Wedin and Tilman, 1990); and consequently, the natural spatial and temporal changes in the C 4 :C 3 ratio of the PVS. Huang et al (2008) conducted a 3-year experiment to determine the effects of N fertilization on N resorption of six temperate grassland species belonging to different life forms (grass, semi-shrub, N-fixer, and forbs).…”

Section: Influence Of Management Tools In N Retention At Pvsmentioning

confidence: 99%

“…Huang et al (2008) conducted a 3-year experiment to determine the effects of N fertilization on N resorption of six temperate grassland species belonging to different life forms (grass, semi-shrub, N-fixer, and forbs). Findings indicated that long-term N fertilization had differential effects as increased plant N uptake and decreased plant N resorption proficiency, depending on the species.…”

Section: Influence Of Management Tools In N Retention At Pvsmentioning

confidence: 99%

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Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems

Pérez-Suárez

Castellano

Kolka

et al. 2014

Agriculture, Ecosystems & Environment

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a b s t r a c tReductions of nitrogen (N) export from agricultural lands because of changes in specific N stocks and fluxes by incorporation of small amounts of prairie vegetation strips (PVS) are poorly understood. The primary objective of this study was to evaluate the effect of the presence and topographical position of PVS on soil and plant carbon (C) and N stocks relative to annual crop and native prairie vegetation. The study was implemented within three small adjacent watersheds, treated with one of the following cover types:(1) 100% row-crop agriculture (CROP); (2) 20% prairie vegetation (PVS) distributed along the contour across three topographical positions: upslope, sideslope and footslope position; and (3) 100% 17-year old reconstructed native prairie (RNP) as the control condition. Total soil organic C (SOC), total soil N (TN), inorganic N availability as indexed by ion exchange resins, N stocks in plant biomass and litter, and the ratio of C 3 :C 4 plant species were measured during the 2010 growing season. Results showed that over five years of treatment, PVS footslope improved soil quality by increasing TN by almost 100% and SOC by 37%; while CROP footslope TN decreased by 31% and SOC decreased by 28%. Overall, N stocks in plant biomass and litter were higher in PVS compared with RNP, except in the footslope where the lower N plant stocks was associated with higher C 3 abundance in RNP. Nitrogen availability was higher in CROP (25.4 ± 1.4), followed by PVS (10.2 ± 1.3), and RNP (2.2 ± 1.4); with the highest values recorded in the upslope position for PVS and RNP, and the footslope for CROP. These findings are important for designing watersheds with PVS to reduce N accumulation in the footslope position and promote additional N retention in soil organic matter and plant biomass, thereby minimizing N losses to streams.

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Section: N Soil Retention and Plant N Stock At Pvsmentioning

confidence: 72%

Section: Influence Of Management Tools In N Retention At Pvsmentioning

confidence: 99%

Section: Influence Of Management Tools In N Retention At Pvsmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems

Pérez-Suárez

Castellano

Kolka

et al. 2014

Agriculture, Ecosystems & Environment

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“…where N biomass and N litter are the concentrations of nutrient in the biomass and litter in winter because it is in this season that there is the largest litter production (Huang et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Ecological stoichiometry of C, N, and P of invasive Phragmites australis and native Cyperus malaccensis species in the Minjiang River tidal estuarine wetlands of China

et al. 2015

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Tidal estuarine wetlands of China are rich in plant diversity, but several global change drivers, such as species invasion, are currently affecting the biogeochemical cycles of these ecosystems. We seasonally analyzed the carbon (C), nitrogen (N), and phosphorus (P) concentrations in litters and soils and in leaves, stems, and roots of the C 3 invasive species Phragmites australis (Cav.) Trin. ex Steud.and of the C 4 native species Cyperus malaccensis var. brevifolius Boeckeler to investigate the effect of C 3 plant invasion on C, N, and P stoichiometry in the C 4 plant-dominated tidal wetlands of the Minjiang River. When averaged across seasons, the invasive species P. australis had higher N concentrations and lower P concentrations in leaves than the native species C. malaccensis. N and P concentrations were lower in litter (stem and leaf), whereas C concentrations in leaf litter were higher in P. australis than in C. malaccensis. The C, N, and P concentrations of the soil also did not differ, but plants had a lower C:N and much higher N:P ratios than soils. Root C:P and N:P ratios were lower in the growing season both in the invasive and the native species. The leaf C:N, C:P and N:P ratios peaked in summer. The invasive species had lower C:N ratio in leaves and roots, and higher N:P ratios in all biomass organs and litter than the native species, an effect related with the higher N-resorption capacity of the invasive species. Interspecific differences in C:N, C:P, and N:P ratios may likely reflect the differences in plant morphology, nutrient-use efficiency, and photosynthetic capacity between the C 3 (P. australis) and C 4 (C. malaccensis) plants. Our results generally suggested that the success of P. australis in these wetlands was related to its slow growth and higher resorption capacity of N and P. This implies a more conservative use of limited nutrients, particularly N, by P. australis, and to higher N concentration in its biomass thus potentially contributing to its invasiveness in these estuarine wetlands.Communicated by William E Rogers.Electronic supplementary material The online version of this article

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“…Increased soil N availability due to N deposition may also alter the community composition, thus changing the abundance of plants with different litter quality (Manning et al 2006;Huang et al 2008;Manning et al 2008a, b), and modifying the overall effect of N on decomposition at the ecosystem level. In most natural ecosystems, litter decomposes in mixtures of different species, which differ in their functional traits, and the decay rate and nutrient dynamics of litter mixtures might be substantially different from those of the decomposition of separate species, hence the occurrence of non-additive effects (Williams and Alexander 1991;Scherer-Lorenzen 2008).…”

Section: Introductionmentioning

confidence: 99%

Litter decomposition and nutrient release as affected by soil nitrogen availability and litter quality in a semiarid grassland ecosystem

et al. 2009

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Nitrogen availability is critically important to litter decomposition, especially in arid and semiarid areas where N is limiting. We studied the relative contributions of litter quality and soil N to litter decomposition of two dominant grassland species, Stipa krylovii and Artemisia frigida, in a semiarid typical steppe ecosystem in Inner Mongolia, China. The study had four different rates of N addition (0, 8, 32, and 64 g N m(-2) year(-1)), and litter samples were decomposed under varying site conditions and by litter types. Litter-mixing effects of the two species were also examined. We found that N addition increased litter N concentration and thus enhanced litter decomposition by improving substrate quality. This increase, however, was offset by the negative effect of increased soil N, resulting in a diminished effect of increased soil N availability on in situ litter decomposition. The positive effects of improved litter quality slightly out-performed the negative effects of increased soil N. Our further analysis revealed that the negative effect of increasing soil N on litter decomposition could be partially explained by reduced soil microbial biomass and activity. Decomposition was significantly faster for litters of a two-species mixture than litters of the single species, but the rate of litter decomposition did not differ much between the two species, suggesting that compositional balance, rather than changes in the dominance between Stipa and Artemisia, is more critical for litter decomposition, hence nutrient cycling in this ecosystem. This semiarid steppe ecosystem may become more conservative in nutrient use with switching of dominance from Artemisia to Stipa with increasing soil N, because Stipa has a slower decomposition rate and a higher nutrient retention rate than Artemisia.

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Changes in nitrogen resorption traits of six temperate grassland species along a multi-level N addition gradient

Cited by 63 publications

References 28 publications

Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems

Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems

Ecological stoichiometry of C, N, and P of invasive Phragmites australis and native Cyperus malaccensis species in the Minjiang River tidal estuarine wetlands of China

Litter decomposition and nutrient release as affected by soil nitrogen availability and litter quality in a semiarid grassland ecosystem

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