Episode 1: Why is autumn in the steppe not a decline, but the beginning of a new life?
Arriving in the steppe in autumn, a city dweller will likely be disappointed: "Everything is gray and dry, the grass is scorched, nature is slowly dying." But this is a grave misconception. What seems like withering and fading to humans is, for the steppe, a period of the most crucial and painstaking work.
Right now, while we stroll and enjoy the last warm days, beneath our feet, a massive preparation for the coming spring is underway. The Aleboo team will help you peer beneath the earth's surface to reveal the hidden life of some plants in autumn.
Let's take a closer look at how this life, invisible to our eyes, works and why autumn is the most important period for the coming spring steppe.
Take tulips, for example. Some of the steppe ephemeroids (those same Schrenck tulips we talk about so much) located on the surface have long since dried up. But underground, their life continues. A tulip bulb is more than just a root; it's a veritable treasure chest.
The inner layers of the bulb are packed with starch and nutrients. This is the "pantry" the tulip accumulated last spring. The bulb's skin is tough and leathery, a protective suit against summer drought and winter freezing.
In summer, the steppe warms to extreme temperatures, turning into a very hard crust. During this period, tulip bulbs enter a deep dormancy (estivation), where their metabolism slows to conserve and retain moisture for longer.
The fall drop in air temperature and the first rains trigger a process of changes within the bulb: Moisture liquefies the concentrated cell sap, activating enzymes, one of which is sugar. This "fuel" for rapid growth and simultaneously acts as a natural antifreeze, preventing the bulb from freezing in winter. Botanists call what happens inside the bulb in October-November organogenesis. Buds form in the lower part of the bulb.
If the fall is too dry or frost strikes before this process is complete, the bud will die. In the spring, such a tulip will produce only a single leaf and will not bloom.
Tulips have a remarkable ability—they can "dig" deep into the soil.
Young bulbs (especially those just sprouted from seed) are often too close to the surface, where they are threatened by rodents, heat, and frost.
Therefore, in the fall, the bulb sends out a tubular root downward or sideways. A new bulb forms at the end of this root, and the old one dies. Thus, year after year, the Schrenk tulip "buries" itself to an optimal depth of 25-30 cm.
When the bud is formed and the roots grow, the tulip is ready for winter. It vitally needs a period of winter cooling. Low temperatures trigger colossal hormonal changes in the plant. Without winter frosts, the stem simply won't be able to elongate in the spring and will remain trapped underground.
Another plant we're accustomed to seeing in the steppe is the tumbleweed:
Most of us have seen the dry, spherical bushes blown across the autumn steppe by the wind, but in reality, they are a masterpiece of evolution in the plant world.
This plant (such as the katran or kurai) dries out over the summer, its stem becomes brittle at the root, and breaks off in a gust of wind. Rolling across the vast expanse, this ball disperses thousands of seeds over vast distances. The autumn wind isn't "bad weather"; it's free transport, thanks to which the steppe will revive in new places in the spring.
Steppe Blanket: Why is dry grass needed on earth?
Many believe that last year's dry grass should be burned (which is why large, uncontrolled fires occur in the spring).
Dry rags act as a warm, downy blanket for the earth in the fall and winter. They trap the first snow, preventing harsh winter winds from blowing it away. The higher the dried vegetation, the thicker the blanket of snow on the ground. The snow melts, the moisture goes into the soil, nourishing the roots and bulbs of plants. Nature has thought of everything: a dry carpet protects and preserves life.
When you walk through the autumn steppe, remember: you are walking on the "roof" of a huge underground house, which is now preparing for spring. Listen to the rustle of tumbleweeds, inhale the scent of wormwood, and embrace this peace. Nature is not dying—it is accumulating enormous strength.
