Sentences with phrase «in vegetation productivity»

Loranty MM, Lieberman - Cribbin W, Berner LT, Natali SM, Goetz SJ, Alexander HD, Kholodov AL (2016) Spatial variation in vegetation productivity trends, fire disturbance, and soil carbon across arctic - boreal permafrost ecosystems.

Studies including Wang's earlier work in Africa have shown that even small changes in soil moisture in drylands could be significant enough to cause large changes in vegetation productivity.

Not exact matches

Commonwealth environmental water helped maintain a mosaic of habitats including native vegetation, stimulated breeding and recruitment of several native fish, frog and turtle species, and resulted in a boom of productivity in the system.

The simulations suggested that the indirect effects of increased CO2 on net primary productivity (how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.

For example, scientists have shown a connection between the rapid warming of the Arctic region to the increase in terrestrial gross primary productivity (vegetation growth) in high latitudes.

Positive: Increased fecundity, photosynthesis, vegetation water use efficiency, and productivity in some species and locations

For example, Dafflon et al. [2017] demonstrated in a polygonal tundra how soil electrical resistivity tomography and vegetation activity cameras can be merged with in situ measurements in a way to corroborate the role of active layer thickness and polygon geometry on spatial control on productivity, and demonstrate how changes in solute concentration and unfrozen water content in winter contributes to acceleration of permafrost thaw.

Factoring in plant productivity gains that will occur as a result of the aerial fertilization effect of the ongoing rise in atmospheric CO2, plus its accompanying transpiration - reducing effect that boosts plant water use efficiency, the world's vegetation possesses an ideal mix of abilities to reap a tremendous benefit in the years and decades to come.

As temperatures continue to rise around the globe, more vegetation will spring up in the frigid region, potentially pulling even more carbon dioxide from the atmosphere due to increased plant productivity.

Four vegetation models display discontinuities across 4 °C of warming, indicating global thresholds in the balance of positive and negative influences on productivity and biomass.

Changes in growing season duration and productivity of northern vegetation inferred from long - term remote sensing data.

We find, when all seven models are considered for one representative concentration pathway × general circulation model combination, such uncertainties explain 30 % more variation in modeled vegetation carbon change than responses of net primary productivity alone, increasing to 151 % for non-HYBRID4 models.

By «ecosystem change», we mean changes in some or all of the following: the number and types of organisms present; the ecosystem's physical appearance (e.g., tall or short, open or dense vegetation); the functioning of the system and all its interactive parts, including the cycling of nutrients and productivity.

That the biosphere experienced any productivity improvement at all, let alone a doubling, is truly amazing; and it demonstrates in part the powerful impact atmospheric CO2 enrichment is exerting on Earth's vegetation.

Altogether, therefore, common sense suggests that with the plant productivity gains that result from the aerial fertilization effect of the ongoing rise in atmospheric CO2, plus its transpiration - reducing effect that boosts plant water use efficiency, along with its stress - alleviating effect that lessens the negative growth impacts of resource limitations and environmental constraints, the world's vegetation possesses an ideal set of abilities to reap a tremendous benefit from what the President inaccurately terms «carbon pollution» in the years and decades to come.

Climate is a major factor in controlling global patterns of vegetation structure and productivity, as well as plant and animal species composition.

Double CO2 climate scenarios increase wildfire events by 40 - 50 % in California (Fried et al., 2004), and double fire risk in Cape Fynbos (Midgley et al., 2005), favouring re-sprouting plants in Fynbos (Bond and Midgley, 2003), fire - tolerant shrub dominance in the Mediterranean Basin (Mouillot et al., 2002), and vegetation structural change in California (needle - leaved to broad - leaved trees, trees to grasses) and reducing productivity and carbon sequestration (Lenihan et al., 2003).

Impacts of large - scale and persistent changes in the MOC are likely to include changes to marine ecosystem productivity, fisheries, ocean carbon dioxide uptake, oceanic oxygen concentrations and terrestrial vegetation [Working Group I Fourth Assessment 10.3, 10.7; Working Group II Fourth Assessment 12.6, 19.3].

Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America.

Rainfall change and variability is very likely to affect vegetation in tropical grassland and savanna systems with, for example, a reduction in cover and productivity simulated along an aridity gradient in southern African savanna in response to the observed drying trend of about 8 mm / yr since 1970 (Woodward and Lomas, 2004a).

They find that the projected future increases to growing season length result in greater vegetation productivity and biomass, though this plateaus at the end of of the 21st century.

Further, the United Nations Convention to Combat Desertification (UNCCD) defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest and woodlands resulting from land uses or from a process or combination of processes, including those arising from human activities and habitation patterns, such as: (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical, and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.

The United Nations Convention to Combat Desertification defines land degradation as a reduction or loss in arid, semi-arid, and dry sub-humid areas, of the biological or economic productivity and complexity of rain - fed cropland, irrigated cropland, or range, pasture, forest, and woodlands resulting from land uses or from a process or combination of processes, including processes arising from human activities and habitation patterns, such as (i) soil erosion caused by wind and / or water; (ii) deterioration of the physical, chemical and biological or economic properties of soil; and (iii) long - term loss of natural vegetation.

The general cooling and atmospheric circulation changes result in weaker peak river flows and vegetation productivity, which may raise issues of water availability and crop production.

Their projections show an increase to growing season length, vegetation productivity (outside of the southeastern US) and biomass, as well as increased plant water - use efficiency.They also find that vegetation feedbacks may increase warming in summer at higher latitudes and reduce summer warming at lower latitudes.