Global vegetation biomass change (1988-2008) and attribution to environmental and human drivers

2012 ◽  
Vol 22 (6) ◽  
pp. 692-705 ◽  
Author(s):  
Yi Y. Liu ◽  
Albert I. J. M. van Dijk ◽  
Matthew F. McCabe ◽  
Jason P. Evans ◽  
Richard A. M. de Jeu
Keyword(s):  
Vegetation Biomass ◽  
Global Vegetation

scholarly journals Global vegetation biomass production efficiency constrained by models and observations

2019 ◽  
Vol 26 (3) ◽  
pp. 1474-1484 ◽  
Author(s):  
Yue He ◽  
Shushi Peng ◽  
Yongwen Liu ◽  
Xiangyi Li ◽  
Kai Wang ◽  
...  
Keyword(s):  
Biomass Production ◽  
Production Efficiency ◽  
Vegetation Biomass ◽  
Global Vegetation

scholarly journals Unexpectedly large impact of forest management and grazing on global vegetation biomass

Nature ◽  
2017 ◽  
Vol 553 (7686) ◽  
pp. 73-76 ◽  
Author(s):  
Karl-Heinz Erb ◽  
Thomas Kastner ◽  
Christoph Plutzar ◽  
Anna Liza S. Bais ◽  
Nuno Carvalhais ◽  
...  
Keyword(s):  
Forest Management ◽  
Large Impact ◽  
Vegetation Biomass ◽  
Global Vegetation

Effect of Vegetation Biomass on Emissivity of Loam Soil

2012 ◽  
Vol 2 (4) ◽  
pp. 61-62
Author(s):  
Arun Sharma ◽  
◽  
K.C. Pancholi K.C. Pancholi
Keyword(s):  
Vegetation Biomass ◽  
Loam Soil

scholarly journals 178 Use of silvopastures and woodlands to expand the grazing opportunity for small ruminants

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 67-68
Author(s):  
Uma Karki
Keyword(s):  
Body Condition Score ◽  
Small Ruminants ◽  
Warm Season ◽  
Live Weight ◽  
Limited Resource ◽  
Ground Level ◽  
Vegetation Biomass ◽  
Meat Goats ◽  
Condition Score ◽  
And Behavior

Abstract Pasture-based small-ruminant farming is a popular enterprise in the Southeast, especially for small and limited-resource producers. Although woodlands occupy a majority of the land cover in the South and can be a promising resource for raising small ruminants, not much attention has been given on using such resources. A series of studies were conducted at the facilities of Tuskegee University with the overall objective of exploring the potential of using silvopastures and woodlands for raising small ruminants. Grazing studies were conducted from 2015 to 2019 using meat goats and hair sheep in silvopastures and woodland plots. Silvopastures were developed by thinning down the existing woodlands and planting suitable cool- and warm-season forages. Grazing facilities were installed in the study plots and animals were rotationally stocked each year during both cool- and warm-season grazing periods. In 2017, non-pine plants in woodlands were cut to three different heights (ground level and 0.9 m and 1.5 m from the ground level) or left uncut (control) to see the effects on understory vegetation biomass production and utilization by small ruminants. Data on vegetation biomass and quality, canopy height, animal performance and behavior, browsing height, and vegetation preference were collected and analyzed. Small ruminants were found to utilize all planted forages (silvopastures) well and most of the understory plants in woodlands. Vegetation biomass in woodlands increased in areas where non-pine plants were cut versus the control (36–106%; P < 0.0001). Mature animals maintained a desirable body condition score (≥2.6) and FAMACHA score (≤2.6) in woodlands. However, young, growing animals showed a poor live weight gain, especially during some portion of the study. Animals performed well when they were stocked in silvopastures. Both species showed a similar preference for most plant species available in woodlands. Results show a tremendous potential of using silvopastures and woodlands for expanding the grazing opportunity for small ruminants. However, the provision of some supplements would be necessary while stocking young animals in woodlands.

scholarly journals Implementing the nitrogen cycle into the dynamic global vegetation, hydrology, and crop growth model LPJmL (version 5.0)

2018 ◽  
Vol 11 (7) ◽  
pp. 2789-2812 ◽  
Author(s):  
Werner von Bloh ◽  
Sibyll Schaphoff ◽  
Christoph Müller ◽  
Susanne Rolinski ◽  
Katharina Waha ◽  
...  
Keyword(s):  
Growth Model ◽  
Nitrogen Cycle ◽  
Crop Productivity ◽  
Crop Growth ◽  
Limiting Factors ◽  
Full Detail ◽  
Crop Growth Model ◽  
Maintenance Respiration ◽  
Area Index ◽  
Global Vegetation

Abstract. The well-established dynamical global vegetation, hydrology, and crop growth model LPJmL is extended with a terrestrial nitrogen cycle to account for nutrient limitations. In particular, processes of soil nitrogen dynamics, plant uptake, nitrogen allocation, response of photosynthesis and maintenance respiration to varying nitrogen concentrations in plant organs, and agricultural nitrogen management are included in the model. All new model features are described in full detail and the results of a global simulation of the historic past (1901–2009) are presented for evaluation of the model performance. We find that the implementation of nitrogen limitation significantly improves the simulation of global patterns of crop productivity. Regional differences in crop productivity, which had to be calibrated via a scaling of the maximum leaf area index, can now largely be reproduced by the model, except for regions where fertilizer inputs and climate conditions are not the yield-limiting factors. Furthermore, it can be shown that land use has a strong influence on nitrogen losses, increasing leaching by 93 %.

scholarly journals Incorrect interpretation of carbon mass balance biases global vegetation fire emission estimates

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
N. C. Surawski ◽  
A. L. Sullivan ◽  
S. H. Roxburgh ◽  
C.P. Mick Meyer ◽  
P. J. Polglase
Keyword(s):  
Mass Balance ◽  
Carbon Mass Balance ◽  
Carbon Mass ◽  
Global Vegetation
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