Question 2: What are the uses of leaves? The purpose of leaves: first, to help flowers absorb water and nutrients. Second, purify the air. Third: reduce the temperature.
Question 3: What is the use of leaves? Autumn winds, falling leaves, flying leaves constitute the end of autumn and early winter a different landscape.
When the city's streets and alleys are full of leaves, sanitation workers become very busy. It is reported that the city every day to sweep the leaves in more than 20,000 kilograms. However, it is not regrettable that these leaves and domestic garbage, as well as the landfill into the landfill.
The city sweeps more than 20,000 kilograms of fallen leaves every day
"The leaves fell too much, sweeping are not as good as sweeping, these days are working overtime." November 3, 10:00 am, I ran into the Xinhua District cleaning team of sanitation workers near the Eagle Plaza on Construction Road, Zhou Xing, her cleaning work would have been to the end of the morning at 7:00 a.m., but this day it was extended by two or three hours.
The city's street trees are mainly French sycamore, poplar, acacia, etc., are deciduous trees.
Xinhua District, clean team leader Li satisfied told me that the district's daily cleaning of the leaves have more than 1.4 million kilograms, the entire urban area every day to clean the leaves are more than 20,000 kilograms. When the windy weather, urban leaf clearing up to 3.5 million kilograms or more, and the current urban street tree leaves fell less than 1 / 3.
So many leaves how to deal with it? According to Lee satisfied that the urban street leaves by the cleaners after sweeping, loaded into a specially purchased woven bags, by the cleaning team pulled to the landfill, and domestic garbage together with the landfill.
Leaves are valuable green feed
"Leaves are not waste, they are valuable green feed. Unfortunately, people do not realize its value." On November 3, I went to the Municipal Bureau of Animal Husbandry interview, the city's animal husbandry technology promotion station director Jiang Suian words of regret. He said, the leaves of many uses, such as made of fertilizer, biogas, etc., and the simplest and best use is formulated into feed, leaf feed can be said to be livestock feed, "when the landfill, it is too bad."
According to Jiang Suian said, the leaves are rich in vitamins, amino acids, etc., feed livestock both nutritious, but also cost savings. Like acacia leaves, tung tree leaves, poplar leaves, etc. Ground into powder, can be fed to chickens, ducks, geese, pigs and other omnivorous animals.
It is understood that usually feedlot feeding broilers, cows and other poultry, livestock, need to feed a certain amount of vitamins, minerals and other additives. And feeding feed made of leaves, additives feeding can be greatly reduced, which is more than the traditional feed to save a lot of cost. For example, acacia leaves, it is extremely rich in protein content, the dry acacia leaves ground into powder, and net material mixed and fed to laying hens, not only can reduce feeding costs, but also improve egg quality, egg taste is much better. Therefore, the leaves can be called pollution-free green feed.
It is reported that in Beijing, Tianjin and other cities, there are people will be made of leaves to feed livestock. A farmer in Zhaozhou Town, Zhao County, Shijiazhuang City, saves a lot of money by feeding his livestock with synthetic fodder made from fallen leaves and straw. Similarly, raising a pig from weaning to the pen, with the leaves into feed than traditional feed to save 80 yuan to 100 yuan, a beef cattle can save 200 yuan to 300 yuan money, used to feed other livestock can save 20% to 30% of the cost.
It is understood that the city's phacelia, acacia, poplar and other street trees, their leaves can be fed to livestock. Urban areas every day, a large number of fallen leaves were collected by the cleaners, which is in fact an inexhaustible feed resources. If the majority of farmers will be the rational use of leaves, not only for livestock storage of sufficient "winter food", but also save a lot of cost.
Question 4: What are the functions of the leaves? Photosynthesis to make organic matter, respiration, transpiration products transpiration pulling roots from the soil to absorb water, aesthetics and other roles
Question 5: What is the role of the leaves of plants? 1, photosynthesis: the green organs and tissues of plants can photosynthesize, but usually leaves are the main organs of photosynthesis in plants. Generally speaking, through the participation of photosynthetic pigments in the chloroplasts of the leaf pulp tissue cells and the catalytic effect of the relevant enzymes, carbon dioxide and water synthesis of organic matter, and the light energy into organic matter in the chemical energy and storage, while releasing the process of oxygen is called photosynthesis.
2, transpiration: transpiration refers to the process in which water is dissipated from the plant body surface to the atmosphere in a gaseous state. The aboveground parts of the body surface of the plant will occur transpiration, but mainly in the leaves, its transpiration, including stomatal transpiration (the main form) and cuticular transpiration (auxiliary form). Through transpiration, the temperature of the plant body can be regulated, so as not to burn the plant organs in the hot summer heat.
3, the role of reproduction: plant nutrient reproduction depends mainly on roots and stems, but some plants also have the role of propagation of leaves. For example, the root of the ground and galangal in the leaf edge of the vein end can form a variable root and variable buds, begonia and Sedum in the petiole at the base of the formation can form a variable root and variable buds, tiger's eye of the fleshy leaf sheaths of Vannamei can also produce a variable buds for nutrient reproduction.
4, absorption function: leaf epidermal cells can also absorb the substances attached to the leaf, according to the absorption of the leaf agricultural foliar fertilization or foliar spraying herbicides.
5, in addition, the leaves have storage (such as lilies, onion bulbs on the fleshy scale leaves), heterotrophic predation (such as pigweed petioles after the metamorphosis of the trapping capsule), protection (such as cactus plants metamorphosis stem on all the leaves into spiny leaf spines), climbing (pea compound leaves at the top of the two or three pairs of leaflets into the leaf tendril) and other roles
Question 6: What are the functions of the tree leaves? With the function of photosynthesis, that is, to absorb carbon oxides in the air, release oxygen
Question 7: Which plants have what function of the leaves Moss can preview the degree of environmental pollution in general roadside shrubs have the role of absorbing sulfur dioxide, such as mango tree leaves. There are also many traditional Chinese medicines ah, such as tinker's needle grass has the effect of clearing away heat and detoxification....
Question 8: What else do the leaves of plants do? Photosynthesis, respiration, transpiration, heat dissipation, storage, reproduction (some plants), protection (protection of small shoots)
Question 9: Do you know what other plants have what function of the leaves? Persimmon leaves can reduce blood pressure, clearing heat and stopping bleeding, often drink to enhance cardiac function and increase coronary blood flow. Hawthorn leaves can lower blood cholesterol, inhibit bacteria and prevent cholesterol deposition in internal organs, help lower blood pressure and soften blood vessels. Patients with coronary arteriosclerosis can drink this tea frequently. Sycamore Leaf It has the function of clearing liver fire and lowering blood pressure, and also has the function of slowing down the heart rate. Drinking this tea is good for people with high blood pressure. Loquat leaf has the function of clearing the lung and stomach, lowering qi and resolving phlegm, which is beneficial to people with lung heat and phlegm asthma. Banyan leaf has the effect of promoting blood circulation and dissipating blood stasis, reducing swelling and relieving pain, clearing heat and removing dampness. It has certain auxiliary therapeutic effects on bruises and joint pain. Lycium barbarum leaf It can clear away heat and quench thirst, tonify the deficiency and benefit the essence. Can tonify the muscles and bones, in addition to the deficiency of labor, lowering the fire to clear the head and eyes. For diabetic patients with deficiency sweating, thirst and heartburn, dry eyes, diminished vision and other symptoms have auxiliary therapeutic effect. Mulberry Leaf With clearing heat and generating fluids, cooling the blood and brightening the eyes, can assist in the treatment of diabetes, prevention and treatment of diabetic patients due to various complications caused by vision loss. Pine leaves have warm menstruation and blood, the role of wind and dampness, can treat rheumatic pain, bruises and other diseases
Question 10: What are the roles of plant leaves? 1. Respiration: plants and animals are the same, all need to breathe. Leaves on the stomata like animal nostrils and mouth, the air can be from the stomata in and out. The gas inhaled can diffuse to all parts of the tree to meet the needs of growth.
2. Photosynthesis: There is a small green particle called chloroplast in the leaves of plants. It has a special power to photosynthesize to make food for itself, which is what makes plants different from animals.
3. Nutrient conversion: Plants inhale carbon dioxide from the air through the stomata on the leaves, absorb water from the soil through the roots, and then transport the water to the leaves. Carbon dioxide and water meet in the chloroplasts and are converted into nutrients such as starch for plant growth under sunlight, so it is said that leaves are the green factories of plants.
4. Transpiration: a major driving force in the absorption and transportation of water by plants, especially tall plants, if there is no transpiration, the process of water absorption caused by transpiration pull can not be produced, and the higher parts of the plant can not get water.