PubAg

Main content area

You searched for: Subject "perennials" Remove constraint Subject: "perennials" Journal Global change biology Remove constraint Journal: Global change biology Subject grasses Remove constraint Subject: grasses
Start Over

Search

4  Search Results

1 - 4 of 4
Number of results to display per page

Search Results

1. Carbon input by roots into the soil: Quantification of rhizodeposition from root to ecosystem scale

Author:
Pausch, Johanna; Kuzyakov, Yakov
Source:
Global change biology 2018 v.24 no.1 pp. 1-12
ISSN:
1354-1013
Subject:
perennials,   etc   ; annuals; biogeochemical cycles; carbon; carbon dioxide; carbon sinks; crops; data collection; grasses; grasslands; microorganisms; radionuclides; rhizodeposition; roots; shoots; soil; soil organic matter; stable isotopes; terrestrial ecosystems;     Show all 19 Subjects
Abstract:
... Despite its fundamental role for carbon (C) and nutrient cycling, rhizodeposition remains ‘the hidden half of the hidden half’: it is highly dynamic and rhizodeposits are rapidly incorporated into microorganisms, soil organic matter, and decomposed to CO₂. Therefore, rhizodeposition is rarely quantified and remains the most uncertain part of the soil C cycle and of C fluxes in terrestrial ecosyste ...
DOI:
10.1111/gcb.13850

2. Current and elevated levels of UV-B radiation have few impacts on yields of perennial forage crops

Author:
Papadopoulos, Y.A.; Gordon, R.J.; McRae, K.B.; Bush, R.S.; Belanger, G.; Butler, E.A.; Fillmore, S.A.E.; Morrison, M.
Source:
Global change biology 1999 v.5 no.8 pp. 847-856
ISSN:
1354-1013
Subject:
perennials,   etc   ; interspecific variation; grasses; cultivars; forage crops; seedlings; biomass production; field experimentation; crop yield; latitude; legumes; sward; ultraviolet radiation;     Show all 13 Subjects
DOI:
10.1046/j.1365-2486.1999.00271.x

3. Native and exotic plant cover vary inversely along a climate gradient 11 years following stand‐replacing wildfire in a dry coniferous forest, Oregon, USA

Author:
Dodson, Erich K.; Root, Heather T.
Source:
Global change biology 2015 v.21 no.2 pp. 666-675
ISSN:
1354-1013
Subject:
perennials,   etc   ; climate; coniferous forests; ecosystems; grasses; growing season; introduced plants; temperature; wildfires; Oregon;     Show all 10 Subjects
Abstract:
... Community re‐assembly following future disturbances will often occur under warmer and more moisture‐limited conditions than when current communities assembled. Because the establishment stage is regularly the most sensitive to climate and competition, the trajectory of recovery from disturbance in a changing environment is uncertain, but has important consequences for future ecosystem functioning. ...
DOI:
10.1111/gcb.12775

4. Strong photosynthetic acclimation and enhanced water‐use efficiency in grassland functional groups persist over 21 years of CO2 enrichment, independent of nitrogen supply

Author:
Pastore, Melissa A.; Lee, Tali D.; Hobbie, Sarah E.; Reich, Peter B.
Source:
Global change biology 2019 v.25 no.9 pp. 3031-3044
ISSN:
1354-1013
Subject:
perennials,   etc   ; C3 plants; C4 plants; acclimation; carbon dioxide; drought; forbs; free air carbon dioxide enrichment; gas exchange; grasses; grasslands; herbaceous plants; leaves; legumes; models; nitrogen; photosynthesis; prediction; stomatal conductance; uncertainty; water use efficiency; Minnesota;     Show all 22 Subjects
Abstract:
... Uncertainty about long‐term leaf‐level responses to atmospheric CO₂ rise is a major knowledge gap that exists because of limited empirical data. Thus, it remains unclear how responses of leaf gas exchange to elevated CO₂ (eCO₂) vary among plant species and functional groups, or across different levels of nutrient supply, and whether they persist over time for long‐lived perennials. Here, we report ...
DOI:
10.1111/gcb.14714