Question

Структура почвы(сожмите кусочек почвы в кулаке и опешите то, что получилось).

Answer 1

Ответ:

Почвенная структура — это совокупность отдельностей, состоящих из склеенных илом и гумусом частицами механических элементов почвы, на которые способна распадаться почва при небольшом механическом воздействии на неё. Чаще всего структуру почвы определяют, подбрасывая почвенный ком несколько раз, пока он не рассыпется на отдельные элементы. Если сжать кусочек почвы в кулак, то получился шарик или все рассыпается после того, как разжимаете кулак. Есть множество аспектов более подробного определения типа грунта. Например, если из почвы получается собрать шар, скатать колбаску и согнуть её в бублик, то это глинистая почва. А если вообще не получается никакую фигуру сделать, то это песчаник.

Объяснение:

Напишу ещё типы почвы. На всякий случай.

Первый тип:

1. Комковатая
2. Пылеватая
3. Ореховатая
4. Зернистая.
5. Порошистая.

Второй тип:

6. Столбовидная, столбчатая.

7. Призматическая.

Третитй тип:

8 - сланцеватая.

9 - пластинчатая

10 - листовая.

11 - чешуйчатая.

Answer 2

Structure of Soil

The structure of soil refers to the way soil particles are arranged and held together. When you compress a handful of soil, you can observe several components that make up its structure.

1. Mineral Particles: Soil is composed of various mineral particles, including sand, silt, and clay. These particles differ in size and texture, with sand being the largest and clay being the smallest. The proportions of these particles determine the soil's texture, which affects its ability to retain water and nutrients.

2. Organic Matter: Soil contains organic matter, which includes decomposed plant and animal material. This organic matter contributes to the fertility of the soil and provides nutrients for plants. It also improves the soil's structure by binding the mineral particles together and creating pore spaces for air and water movement.

3. Pore Spaces: Between the mineral particles and organic matter, there are spaces called pore spaces. These spaces allow for the movement of air, water, and plant roots within the soil. The size and distribution of these pore spaces influence the soil's ability to hold and drain water, as well as its aeration and root penetration.

4. Soil Aggregates: Soil aggregates are formed when individual soil particles bind together. These aggregates can range in size from small clumps to larger clods. They are held together by organic matter, clay minerals, and microbial activity. Soil aggregates improve soil structure by creating larger pore spaces, enhancing water infiltration, and reducing erosion.

5. Soil Horizons: Soil is organized into layers called horizons. Each horizon has distinct characteristics, such as color, texture, and composition. The topmost horizon, known as the topsoil or A horizon, is usually the most fertile and contains a higher concentration of organic matter. The underlying horizons, such as the B horizon and C horizon, may have different mineral compositions and less organic matter.

In summary, the structure of soil is determined by the arrangement of mineral particles, organic matter, pore spaces, soil aggregates, and soil horizons. These components interact to influence the soil's fertility, water-holding capacity, drainage, and overall suitability for plant growth.