Classification by season type

Turfgrass can be divided into warm-season turfgrass and cold-season turfgrass according to the classification of season type, climatic conditions, geographical distribution, suitable climatic conditions for turfgrass growth and geographical distribution range. ?

1. Warm-season turfgrass: also known as summer grass, mainly belongs to some plants of Gramineae and Thrushsubfamily. The optimum growth temperature is 15-35℃, which is mainly distributed in the Yangtze River basin and its low altitude area to the south. Its main characteristics are dormancy in winter, turning green in early spring and vigorous growth after recovery. In late autumn, there was frost, and its stems and leaves withered and withered. Most warm-season lawn plants are only suitable for cultivation in South China, and only a few can grow well in North China. Such as Bermuda grass, Manila grass and Taiwan Province grass.

2. Cool-season lawn grass: also known as winter grass, mainly belongs to Poa subfamily. The optimum growth temperature is 5-22℃, which is mainly distributed in North China, Northeast China and Northwest China. Its main characteristics are strong cold tolerance, heat intolerance in summer and vigorous growth in spring and autumn. Suitable for planting in northern China. There are also some varieties, which can also be cultivated in south-central and southwest China because of their strong adaptability. Such as ryegrass, tall fescue and Kentucky bluegrass.

Classification by family and genus

According to families and genera, the main components of lawn plants used to be Gramineae, but in recent years they have developed into non-Gramineae plants such as Cyperaceae, Leguminosae and Convolvulaceae.

Classification by family: Gramineae and non-Gramineae.

1. Gramineae: Gramineae turfgrass accounts for more than 90% of turfgrass plants and belongs to Festusubfamily, Panisubfamily and Thrushcross subfamily in plant taxonomy. ?

2. Non-Gramineae: All plants with well-developed stolons, low and slender, resistant to extensive management, trampling, long green period and easy to form low turf can be used to lay lawns. Turfgrasses of Cyperaceae, such as Carex tenuifolia, Carex tenuifolia, Carex heterophylla and Carex ovata; White clover, red clover, small variation crown flower, etc. And can be used as a flower lawn plant; Secondly, there are other grasses, such as creeping horseshoe, Ophiopogon japonicus, thyme, creeping Potentilla, etc., which can also be used as garden flower beds, modeling and ornamental lawn plants. ?

Classification by genus: bentgrass, Festuca, Poa, Lolium, Zoysia.

1. Agrostis: The representative grass species are Agrostis tenuifolia, Agrostis tomentosa, Agrostis stolonifera and Spatholobus suberectus, which have stolons or rhizomes, spread rapidly, have good turf-forming performance, are resistant to trampling, are fine and dense, have large leaves, and are suitable for weak acid and moist soil. High-quality lawns can be built, such as sports lawns such as golf courses and hockey fields and fine ornamental lawns. ?

2. Festuca: The representative species are Festuca arundinacea, Creeping Festuca, Festuca arundinacea, Festuca tenuifolia and Festuca arundinacea. The common characteristics are strong resistance to adversity, such as acid resistance, alkali resistance, barrenness, soil drought, cold and hot climate and air pollution. Festuca arundinacea, creeping Festuca arundinacea, Festuca arundinacea and Festuca tenuifolia all have low leaves. Festuca arundinacea is a Gao Dakuan leaf type. Festuca arundinacea Turfgrass is mainly used as a companion species for mixed sowing of sports turfgrass and various green turfgrass. ?

3. Poa pratensis: The representative species are Poa pratensis, Poa pratensis, Poa pratensis woodland and Poa pratensis. The rhizome is developed, the turf-forming ability is extremely strong, and it is resistant to trampling. The grass is thin and flat, the turf is elastic, the leaves are green and bright, and the green period is long. The stress resistance is relatively weak, and the requirements for water, fertilizer and soil are strict. This kind of lawn grass is the main grass species for planting all kinds of green land in the north, and it is also the main grass species for planting sports lawns, especially many varieties of Kentucky Bluegrass. ?

4. Ryegrass: The representative grass species are perennial ryegrass, green bristlegrass and ladder grass. Perennial ryegrass seeds have high germination rate, rapid emergence, lush growth, dark green and shiny leaves, but it needs high water and fertilizer conditions and short lawn life. Generally, it is mainly used as a protective grass seed in sports ground and various green lawn mixed sowing schemes. ?

5. Zoysia: The representative grass species are Zoysia japonica, Zoysia japonica, Zoysia japonica, Zoysia manillensis and Zoysia tenuifolia. Zoysia japonica has many excellent characteristics, such as drought resistance, trampling resistance, barren resistance, pest resistance and so on, and has certain toughness and elasticity. It is not only an excellent lawn plant, but also a good soil fixation and slope protection plant.

According to the width of grass leaves

According to the width of lawn leaves, there are mainly two types: thin leaf type and wide leaf type. ?

1. Broad-leaved lawn grass: wide leaves and thick stems, vigorous growth and strong adaptability, suitable for large-scale lawn. Such as Zoysia japonica, carpet grass, Pteris vittata, Polygonum cuspidatum, Festuca arundinacea, etc. ?

2. Fine-leaved lawn grass: slender stems and leaves can form a flat, uniform and dense lawn, which requires good soil conditions. Such as plum blossom, Zoysia tenuifolia, Poa pratensis, Festuca tenuifolia and Buffalo grass. ?

Classification by height

According to the height of lawn plants, it can be divided into low creeping type and tall and strong type. ?

1. Low lawn grass: the plant height is less than 20cm, it is low and dense, with well-developed stolons and rhizomes, which is resistant to trampling and convenient to manage, and is mostly suitable for high temperature and rainy climate conditions; Multi-line asexual propagation takes a long time to form lawn, but if paved, the cost is high, which is not suitable for large-scale and short-term lawn formation. Common Zoysia japonica, Zoysia tenuifolia, Bermuda grass, weeds, carpet grass, Pteris vittata and so on. ?

2. Tall lawn grass: The plant height is usually more than 20cm, and it is generally propagated by sowing. It grows rapidly and can form a lawn in a short time. Suitable for planting large area lawn. Its disadvantage is that it must be trimmed frequently to form a flat lawn. Such as tall fescue, ryegrass, Kentucky bluegrass, cutting glume and so on. ?

Classification by purpose

According to the purpose of lawn, there are mainly the following categories:

1. Ornamental lawn grass: mostly used for ornamental lawn. Grass seeds should be flat, low, with long green period and dense stems and leaves, and fine-leaved grass is generally suitable. Or some plants with particularly beautiful leaves, with beautiful spots, stripes and colors, as well as beautiful flowers and fragrance. Such as white clover, small crown flower, thyme, Potentilla, etc. ?

2. Common green turfgrass: Most turfgrass can be used as common green turfgrass, which has strong adaptability, excellent lawn use and growth potential, wide promotion range and large planting area, and has become the main grass species in this area. Mostly used for leisure lawns, with no fixed shape and extensive management, allowing people to enter for entertainment activities. For example, Zoysia tenuifolia, carpet grass and Bermuda grass in the south of China, and Kentucky Bluegrass, white clover and weeds in the north. ?

3. Lawn grasses for soil fixation and slope protection: Some lawn grasses with developed rhizomes and stolons have strong adaptability for soil fixation, such as Zoysia japonica, Pteris vittata, Polygonum cuspidatum, Bromus inermis, Elytrigia elongata and so on. ?

4. Ornamental lawn grass: refers to colorful lawn plants, which are scattered in the lawn to set off and decorate, and are mostly used for ornamental lawns, such as small crown flowers and lotus roots.