The knowledge of gardening is urgent. . . Please help 50

1.In the vertical design of the garden land, the longitudinal slope of the square in the north for safety reasons should be 1% smaller, the horizontal drape is not greater than, the maximum slope of the parking lot is not greater than the maximum longitudinal slope of 1, and the vertical direction of the passage is 3. Generally, the slope of the garden road should not exceed 8%, and steps should be set up if this value is exceeded.

2.The buried depth of the trench pipe must have a certain depth of covering soil and burial depth, under the roadway; under the sidewalk; Green belts are subject to availability.

3.The riser height of the step should be 10-15cm, between, the long step should be 12cm up and down, the tread width of the step should not be less than 30cm, the number of steps should be between 10-12 steps, no more than 15 steps, more than set up a rest platform in the middle, the platform should not be less than 1m.

4.The revetment in the garden is composed of four parts: the foundation, the wall, the roof, and the surface layer.

5.Pools are widely used in urban gardens, beautify the cityscape, focus on decorating the environment, and pool design includes.

Four parts design: pool bottom, pool wall, inlet and outlet, waterproof practice.

6.Our common indoor waterfall forms are: water curtain, water curtain, stacked water, spray.

7.The size of the longitudinal slope of the road has a great impact on the tour activities. In general, maintain a certain garden.

The longitudinal slope of the road is conducive to the drainage of the road surface and the enrichment of the road scene. In order to ensure smooth drainage, the minimum longitudinal slope should be ensured.

Not less than, the slope should not be too large is not conducive to tourists and vehicle traffic, open to traffic appropriately.

Control within 8%, bicycle park road, longitudinal slope should be within the maximum.

Not exceeding, wheelchairs, tricycles should be, not exceeding. Be obstructed.

The maximum longitudinal slope of the pedestrian tour path of the car does not exceed 18%, if the slope is more than 18%.

It must be designed as a stepped road.

Note: The question is not accurate, and the rest of the questions refer to the "Vertical Planning Code for Urban Land".

Code for Park Design", Code for Planning and Design of Urban Residential Areas).

The slope of the garden road with a slope of more than 15% is not 8% and the others are very correct.

Let's take a look at the book on landscape engineering.

Bulbs are the reproductive mothers of a certain plant, and you are afraid of bulbs. Garden application: bulbous flowers are rich in species, bright flower color, long flowering period, easy to cultivate, strong adaptability, is an ideal type of plant material in garden arrangement.

Tulips and hyacinths from the Netherlands, musk lilies from Japan, and Chinese daffodils and lilies from China are all well-known in the world. Bulbous flowers are commonly used in flower beds, flower landscapes, rock gardens, foundation planting, ground cover, beautifying water surfaces (aquatic bulb flowers) and decorating lawns. It is also an important cut flower flower, which is produced in large quantities every year, such as gladiolus, tulips, freesia, lily crack, tuberose, etc.

It can also be potted, such as cyclamen, large rock paulownia, narcissus, dahlia, vermilion, bulbous begonia, etc. In addition, some bulbous flowers can be used for extracting flavors, edible and medicinal, etc. Therefore, the application of bulbous flowers is worth paying attention to, especially the bulbous flowers native to China, such as lily, iris, fritillary, lycoris, etc., which should be developed and applied in a focused manner.

Bulbous flowers are perennial herbaceous flowers with bulbous roots or bulging underground stems. According to the morphological structure of underground stems or roots, bulbous flowers can be roughly divided into the following five categories: First, bulbs.

The underground stem is formed by the thick and fleshy leaf deformants, that is, the scales are hugged, and the scales are born on the stem disk, and the axillary buds grow and become new bulbs. Bulbs can be divided into two categories: skinned bulbs and skinless bulbs, with skinned bulbs such as daffodils, tulips, vermilion, hyacinths, manjushri, lilies, etc., and skinless bulbs such as lilies. Second, bulbs.

The underground stems are spherical or oblate-spherical, with obvious annular stem nodes, lateral clump buds on the nodes, membranous sheaths, and well-developed apical buds. The fine roots are born at the base of the ball, and the thick traction roots occur before and after flowering, which not only supports the aboveground part, but also keeps the new ball growing on the cue ball from exposing the ground. Such bulbous flowers include gladiolus, freesia, Spanish iris, etc.

Third, tubers. The underground stem is lumpy, the shape is not neat, there is no annular knots on the surface, the root system occurs from the bottom of the tuber, there are several germination points at the top, this kind of bulbous flowers have pulsatilla, flowering taro, calla lily, cyclamen, large rock tung, bulbous begonia, buttercup and so on. Fourth, rhizomes.

The underground stems are hypertrophied and root-like, with distinct nodes and internodes on them. There are small, vestigial scale leaves on the nodes, and the axillary buds of the leaf axils, especially the lateral buds at the apex of the rhizome, which develop into aboveground branches and produce adventitious roots. Such bulbous flowers include canna, lotus, ginger flower, water lily, hosta, etc.

Fifth, root classes. The underground taproot is hypertrophic and lumpy. The dormant buds grow near the root neck, from which new shoots germinate, and the lower part of the new roots elongates to produce many new tuberous.

When propagating by ramification, the root neck at the end of the tuber root must be attached. Such bulbous flowers include dahlias, etc. Conventional seedlings refer to the native seedlings or commonly used seedlings of a certain plant.

Special seedlings refer to the seedlings of a certain plant that change the traits of native plants through artificial hybridization, genetic modification, mutagenesis, etc., and natural varieties will also exist in nature. It is generally used for new product development or cultivation compared with conventional seedlings. nurtured or natural.

Landscaping.

Enhance the aesthetics of urban design and create a more comfortable and vibrant urban landscape.

The verdant vegetation visually separates the building and defines a continuous landscape, forming an interesting viewing gallery. The green buffer zone can also isolate unsightly scenery and ease the clutter and damage surrounding environment.

Greenery enhances the sense of space in the cityscape, striking a balance between the virtual and the real, creating a visual contrast.

One of the functions of greenery is to act as a city lung, providing visual and psychological relief and rejuvenation.

Landscaped earthen embankments can be used as a traffic noise mitigation measure.

The construction of different landscaping along major highways can alleviate the monotonous scenery along the route, reduce the impact of harsh sunlight and improve traffic safety.

Improve the natural ecology.

Vegetation can improve the microclimate of the city by blocking sunlight and strong winds, absorbing heat, reducing the temperature of hard building surfaces, increasing humidity, etc.

Vegetation inhibits airborne dust and counteracts the effects of environmental pollutants. Plants inhale carbon dioxide, which increases the oxygen content of the air, which helps to decompose toxic gases emitted by vehicles and industrial activities.

Vegetation can act as a reservoir for balanced flow, retaining rainwater during the rainy season and releasing water during the dry season, helping to alleviate soil erosion and stabilize slopes.

Proper planting of native trees and plants can provide food and shelter for wildlife such as insects and birds, and contribute to the conservation of natural ecology and wildlife in the area.