There are 65 genera 1250 species of bamboo plants in the world. At present, there are about 170 species of bamboo plants in Taiwan, which can be divided into 5 genera. There are six kinds of common bamboos in Taiwan Province: Phyllostachys pubescens, Meng Zongzhu, Phyllostachys spinosa, Phyllostachys pubescens, Dendrocalamus latiflorus and Phyllostachys pubescens.
Classification by growth type:
The new bamboos grow from the lateral buds of the stems and roots of the old bamboos, so they all look like a cluster. Dendrocalamus latiflorus, green bamboo, spiny bamboo, long bamboo, Penglai bamboo, etc.
Scattered bamboos, their long underground stems crawl underground! Hsinchu sprouts from these underground stems again, so Hsinchu will grow near the old bamboo, which seems to grow independently. Meng Zongzhu, Zhu Gui, Mianzhu, Zhu Mo, Tang Zhu, Tetragonal Bamboo, Japanese Red Bamboo, etc.
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Bamboo is a monocotyledonous gramineous plant, which is widely distributed and grows all over the world. There are about 65 genera 1250 species in the world. Bamboo likes to grow in a warm and humid climate, so it is mainly distributed in tropical or subtropical monsoon climate areas at low latitudes. Asia is the place where bamboo grows, and bamboo is a specialty of the East. At present, there are about 79 species growing in Taiwan Province Province, including fixed species 17 species. From north to south, from sea level to mountains over 3000 meters. Bamboo mainly grows in areas above sea level 1000 meters.
Bamboo grows rapidly, some can grow more than one meter a day, and it can be fully developed in two or three months. After that, they won't grow taller or thicker, and they will keep this size forever until they die. The life cycle of bamboo is not long, only a few years. When bamboo is old, it will bloom and then die. This is to eliminate old bamboos and keep new ones to promote the growth and vitality of bamboo forests, but bamboos often bloom and die together.
Bamboo is very different from ordinary trees. The aboveground part of bamboo is composed of jointed bamboo stems, branches and leaves. The base of the bamboo stem is connected with the underground stem, which is also segmented. The slender roots on the underground stem nodes, called fibrous roots, are real roots. Never think that bamboo shoots are the roots of bamboo!
Bamboo can be cut down after four years of cultivation. Because it is easy to obtain materials, light and firm, it has been widely used by human beings since ancient times. Its stems, branches, leaves, reeds, whip roots and buds are all used for housing, tools, utensils and food. Therefore, bamboo is an extremely important cash crop.
Bamboo is widely used by human beings in life because of its exquisite materials, durable products, comfortable and cheap sitting and lying, and strong local flavor and national flavor. The art of bamboo has also been preserved, created and continued.
Zhujian
According to different roots, bamboo can be divided into two categories:
First, overgrown bamboo:
This kind of bamboo is born in the tropics and looks like a clump, because its roots are short and thick, and the new bamboo grows from the lateral buds of the old bamboo, so they all look alike. The common bamboos in Taiwan Province Province are Dendrocalamus latiflorus, Dendrocalamus latiflorus, Phyllostachys elongata and Phyllostachys Penglai.
Second, loose bamboo:
This kind of bamboo is cold-resistant. It looks like a branch, like a tree, but their long roots crawl underground! Hsinchu grows from these roots again, so Hsinchu will grow near the old bamboo. This kind of bamboo grows very fast, forming a large bamboo forest at once, such as Meng Zongzhu, Zhu Gui, Mianzhu, Zhu Mo, Tang Zhu, Tetragonal Bamboo and Japanese Red Bamboo.
Bamboo is one of the forest resources. There are more than 70 genera 1200 species of bamboo plants in the world, mainly distributed in tropical and subtropical regions, and a few bamboos are distributed in temperate and cold regions.
Bamboo is an evergreen shallow-rooted plant (a few bamboo species lose their leaves in dry season), which requires high hydrothermal conditions and is very sensitive. The hydrothermal distribution on the earth's surface dominates the geographical distribution of bamboo. Southeast Asia, located in the tropics and south subtropics, is affected by the convergence of the Pacific Ocean and the Indian Ocean monsoon, with abundant rainfall and stable heat. This is an ideal ecological environment for bamboo growth and the center of bamboo distribution in the world.
Bamboo often forms a mixed forest with other tree species, and it is under the main forest layer, which was rarely paid attention to in the past. After the upper forest is cut down, bamboo will quickly return to secondary bamboo forest, which has the characteristics of fast growth and strong reproduction. The use of bamboo is expanding and its economic value is high. People plant bamboo for afforestation and form artificial forests. Secondary bamboo forests and artificial bamboo forests spread everywhere with their powerful underground stems. Therefore, in recent decades, the forest area on the earth's surface has been decreasing year by year (according to statistics, since 1988, the tropical forest has disappeared by an average of 24.25 million hm2 every year, and the bamboo forest area has been expanding day by day). At present, the bamboo forest area in the world is about 22 million hm2.
The geographical distribution of bamboo in the world can be divided into three bamboo areas, namely, Asia-Pacific bamboo area, American bamboo area and African bamboo area (below), and some scholars have listed "introduction areas in Europe and North America" separately.