In October, autumn turns into winter in the majority of Alaska. Each year, however the first frosts are getting closer and closer. It could be a good thing to Alaska farmers.
University of Alaska Fairbanks professor Glenna Gannon says the longer growing season has made certain kinds of crops feasible at first.
The span style=”font-weight 400 ;”>”We’re successful in being able to cultivate things like artichokes, field-grown tomatoes, peppers, and corn at Fairbanks,” Gannon said. “I do not think that it was 30 years ago, or 10 years ago it would have been a success. .”
Gannon conducts crop trials on the university’s research farm, which is where nine of the ten most recent first frosts have been recorded in the last decade. In many areas, particularly in the Interior the shift has allowed farmers to continue their crop in the field until mid-September.
In a state that has struggled over food insecurity, changing seasons and warmer temperatures triggered by climate change caused by humans could enable Alaska farmers to cultivate greater quantities of diverse and plentiful produce. However, climate change could also trigger drought, pests, and permafrost freeze.
It can also make the weather more unstable as well. Tom Zimmer of Calypso Farm located just outside of Fairbanks stated that’s what concerns him the most.
Its style=”font-weight 400 ;”>”Yes the days without frost are growing,” Zimmer said. “But the fluctuation in the climate makes it harder to grow crops. .”
Zimmer as well as his spouse run their own organic farm since. This year, frost and snow stuck around into the spring, which delayed the planting. Then, a dry, hot summer arrived fast. Certain plants flourished.
The span style=”font-weight 400 ;”>”This year we enjoyed excellent green beans, incredible cauliflower,” Zimmer said. “But other crops slowed down. It was hot.”
The hot summers are expected to be more frequent in many areas in Alaska, based on climate scientist Nancy Fresco with the university’s International Arctic Research Center. Fresco creates climate models to forecast the future of Alaska’s agriculture.
The span style=”font-weight 400 ;”>”We’re anticipating that we will see continued increases in both the duration of growing seasonsthe number of days that are frost-free as well as in the overall heat of the different seasons,” she said.
The summer heat can give some crop plants a boost
As the climate gets warmer over the next decade the frost-free period is likely to get longer by months or weeks. The summers will also increase in temperature.
Each plant has its own starting point temperature, at which it begins to grow and sprout. In order to mature and harvest, it requires some time with temperatures that are higher than the threshold. Summer days with higher temperatures that persist later in the year could boost the number of favorable growth days and help certain crops to grow.
The warm-weather species, such as peppers, tomatoes and corn require temperatures that are at least 50 degrees in order to begin growing. To mature, they require lots of days that exceed that threshold. Therefore, historically, these plants have been difficult to cultivate in Alaska without greenhouses.
However, even species that are tolerant of cold like brussels swiss sprouts are a problem because they take a considerable time to grow. Gardeners and farmers who have attempted to cultivate the plants in Alaska have had to risk losing their crops due to snow and frost before harvest.
Theoretically, climate changes could benefit both kinds of crops. However, Fresco noted that the climate models we have do not take into account many significant factors that affect the farming.
Its style=”font-weight 400 ;”>”We were really studying air temperature which is, of course a major issue in the cultivation of crops,” Fresco said. “But there’s some significant factors in what crops can be grown, specific to Alaska and are a challenge to grow in Alaska — and that we’ve not yet had the opportunity to model. .”
Permafrost – an area of soil which remains frozen all year is among the most important factors that affect the Interior. It has the potential to affect soil temperature and moisture, which could limit plant growth, regardless of the temperature of the air. As its melting proceeds, the process is likely to alter the stability of farmlands that appear to be viable in the subarctic.
Even as the weather conditions improve farmers will have to endure lengthy hours of sunshine that can reach that can last up to 22 hours in some farmsteads within the Interior. Certain crops simply cannot withstand this much sunlight.
Farmers should be cautious
Zimmer who is from Calypso Farm, says there’s an advantage for every benefit of climate change. Certain of Alaska’s climate-tolerant crops, including broccoli or cabbage, could actually be less successful when temperatures rise. In addition, many regions of Alaska are also under the risk of a more severe summer drought.
It’s also becoming moderate generally. Although this can be good for some perennial crops such as fruit trees Zimmer admitted that it’s resulted in more aphids as well as root maggots to his plants.
The span style=”font-weight 400 ;”>”In our 20-year study, one of the things that is most apparent in my mind is the life of insects cycles,” Zimmer said. “One one of the benefits of living in Alaska is the severe winter that kills majority of our insects. It’s beginning to fade away .”
Climate change is expected to increase the range of crops as well as the amount of land that can be used for farming in Alaska. In a way, Zimmer said, that’s an excellent opportunity to increase food security and accessibility to local-grown food.
The span style=”font-weight 400 ;”>”We are determined to increase the number of agricultural land within Alaska,” he said. “But it’s not as if Alaska is warming and everything is great. We must proceed slowly, with care and be in tune in harmony with natural cycles. .”
Each of Zimmer and Gannon believe that planting a variety in crops can be the most effective method for farmers to prepare for the possibility of climate changes. Although warmer temperatures are increasingly likely however, they may not be trustworthy.
span style=”font-weight 400 ;”>”We can afford to enjoy a greater variety of what we can cultivate at home,” Gannon said. “But I’m trying to start the seeds of caution for those who are looking to expand your garden or set up a farm. It’s true that they’re living in Alaska .”>
