园林绿化常见树木（Common trees in landscaping）.docVIP

园林绿化常见树木（Common trees in landscaping） Common trees in landscaping First, white clover (see Figure 2 - 1) White clover, white clover and white clover aka Holland clover, dicotyledonous herbaceous perennial life, generally in more than 10 years. White clover native to Europe and Asia Minor Asia region, currently China, Heilongjiang, Xinjiang, Yunnan and Guizhou have wild resources found. It enjoys light and warm and humid climate, and is also capable of semi shade, drought resistance and moisture resistance. Heat resistance is slightly worse, cold resistance Strong ability. On the strict requirements of the soil, as long as good drainage, soil can grow, with great joy and humus calcareous clayey soil. Capable of barren, acid resistance, salt tolerance. The main planting lawn of white clover. The seeding quantity into 7.5 ~ 9 g / m2, was 3 ~ 6G / m2. Keep moist after sowing, slow growth of seedlings, afraid of drought. In the micro salt soil should be treated with Rhizobium treatment after sowing, can enhance the root growth, also can make small lumps transplanting according to the proportion of 1:4. White clover except pasture cultivation, garden soil protection, usually ground cover plants, flower ornamental lawn etc, also can be used for extensive single lawn planting, sowing can also have been built in the lawn, lawn increase adaptability. Two. White Carex (see Figure 2 - 2) Bai Ying lamb alias Hu Carex grass. Carex Bai Ying likes cold and cold climate and has strong cold resistance. It can survive winter at 25 A. It is not heat resistant and has bad growth in summer. It stops growing when it is higher than 36 degrees, and appears to be withered again. Anti barren, drought resistance. Because the grass has no creeping branch, it has poor coverage and is not resistant to trampling. Carex Bai Ying is distributed in temperate and cold zones of northern China and Northern hemisphere. Common in Liao Dynasty The slopes, rivers and open spaces of Ning, Hebei, Shandong, He