Definitions
The rich plants refer to plants that live in nutrient rich habitats, such as nettle. Often is also a nitrogen plant. They appear near the side of the road, toilet or the subrogar. Plants growing under a rich in nutrients based on groundwater, called rich plants.
Relationship between poor plants, rich plants and medium nutrients
According to the accompaling characteristics of the plant on soil nutrient content, plants can be divided into poor plants, rich plants and middle Three categories of plants.
The poor is suitable for shallow soil layers, even naked rocks, although the soil layer is thick but lack of habitat of organic matter and other nutrient elements. The ash content of such plants is usually low, mostly below 5%. The poor plants such as a variety of pine trees (Pins), Rhododndron, Mang. Rich plants require more nitrogen and mineral elements, high ash content, usually more than 10%, such as white waxus, corrylus, 榆 械, pine, bitter, uba, wheat, etc. It is important to emphasize that this division is relatively, and different plants are different from demand for different nutrients.
Refrunating plants section
White wax
White wax tree (learning name: fraxinus chinensis roxb) Wooden rhinoceros deciduous trees, bark Gray brown, longitudinal. Bud vast oval or conical shape, brown silk or glandular hair. Small branches yellow brown, rough, hairless or sparsely flexible, spun, small skin, is not obvious. The lobular lobes are nearly large or slightly large, and the first sharp is sharp, the base is blunt or wedge, the leaf edge is neatly sealed, and there is no hair, and there is no hair in the middle of the medium. Mao, medhers are flat, and the industries are close to the nut base, often on one side. Flowers from 4 to May, as shown in June-September.
(Name: Corylus HETEROPHYLLA fisch.): Annameless hazelnut, four major dried fruits in the world (walnut, tao, hazelnut, cashew) one. For birch, birut, bark gray, bark gray; branches dark gray, hairless; leaves are torque circle or wide-ovulation, the top surface is cacessed or cut, the center is triangular, the edge is irregular Seam; leaf helium is short-haired or short-haired; mahogan monochrome; fruit clock shape, densely subdurable long hair, upper shallow crack, sputum triangle, edge fullness; Soft hair. Nuts near sphere, hairless or only top of the rock.
Born in the mountains in the mountains of 200-1000 meters.
Pine
pine, scientific name: Cunninghamia Lanceolata i> (lamb.) hook., name: sand, sand tree, etc., belongs to cypress, pine Cordon, as high as 30 meters, the chest diameter can reach 2.5-3 meters; bark gray brown; winter buds are near circular, male ball round cone, female ball spending single, ball fruit ovoid, length 2.5 cm long, diameter 3-4 cm; seed flat, cover seed scales, long ovals or rectangular circles, spectacular in April, the ball is mature in late October. [1]
Pole plants
The poor plant is a plant that grows under the conditions of nutrients and less ash content, such as barren. Plants on graymes, plants on sand dunes, plants on high swamps, etc. are poor. The poor plants have special adaptability to harsh environments: Some plants have a growing capacity, such as peat moss and busty gold, some plants have the ability to grow indifferent roots, such as round leaves, so they can Absorb numeriferous and moisture from the swamp surface.
The poor is suitable for shallow soil layers, even naked rocks, although the soil layer is thick but lack of habitat of organic matter and other nutrient elements. The ash content of such plants is usually low, mostly below 5%.
Medium numerous plants
Rearing plant refers to plants on the soil in which it is moderate. There is a rich plant and a poor plant. Common plants are all medium nutrients.
Self-nutrified plants and historic plants
There are no leaf green rosers in some plants, and cannot be self-made by photosynthesis, and they must be sent to other plants and absorb ready-made nutrition. Substances, such as Cuscutac / Tinensis Lam., Such plants are called parasitic plants, in addition, there are many 类 多 生 物The nutrients needed to grow in growth and development through the decomposition of organic matter, and is called Saprophytic Plant. Both parasitic plants and humorized plants are non-green plants, also known as HOTEROTROPHIC PLANT.