growing-season

The application of climate change proxies in paleoclimatic analysis has traditionally relied on identification of systematic shifts in ecosystem patterns known from modern analogues or by comparison with independent instrumental or proxy climate records to determine perturbations in climate-driven environmental conditions such as growing-season length, solar insolation, temperature, humidity, ice-cover extent and duration, or hydrologic balance.

Historical changes in freshwater ecosystems in the Arctic 2009

A simulated instantaneous 2 °C increase in average growing-season temperature was applied with two different precipitation regimes (a 20% increase and a 20% decrease from current precipitation levels) to explore the possible influence of climate change on long-term boreal forest ecosystem dynamics.

Climate change and fire in the Arctic 2009

The success of perennial crops is governed more by winter survival success than by growing-season weather conditions.

Agriculture in the Arctic 2009

The vegetation and fire regime continued to change for centuries in direct response to a 2 to 4 °C increase in mean growing-season temperature.

Climate change and fire in the Arctic 2009

Climate changes that increase growing-season length and daily maximum temperatures while maintaining or slightly decreasing persistence of growing-season clouds and rain are very likely to be favorable to agricultural production in this area.

Agriculture in the Arctic 2009

For projecting potential water stress, the analysis used model-projected potential evapotranspiration minus growing-season precipitation.

Agriculture in the Arctic 2009

Slight increases in growing-season temperature are likely to increase the probability of two or more successful harvests and thus increased yields in some areas.

Agriculture in the Arctic 2009

This analysis has focused on the direct effects of changes in growing-season temperatures (using GDDs as indicators of crop growth potential) and moisture relationships on potential agricultural crop production in the next century in high-latitude regions.

Agriculture in the Arctic 2009

If temperatures were to increase across the northern boreal region without a significant increase in precipitation in the early and middle parts of the growing season, the change would be unfavorable for agricultural production, except in the case of irrigated crop production that could take advantage of the greater growing-season heat units.

Agriculture in the Arctic 2009

For each parameter analyzed (GDD0, GDD5, and growing-season water deficit), the highest and lowest projections for each location were selected (Table 14.4).

Agriculture in the Arctic 2009