New Zealand radiata pine is a fast-growing, high-yield and versatile tree species. In recent years, New Zealand radiata pine logs and sawn timber have greatly increased exports to China. In 2002, the export volume of radiata pine logs to China exceeded 1.4 million cubic meters, about 90 million US dollars, and sawn timber was more than 200,000 cubic meters, nearly 4000. Ten thousand dollars, a record high. New Zealand radiata pine has attracted the attention of many foresters in China. New Zealand radiata pine, also known as New Zealand pine, is native to some islands in California. However, it does not grow well in the place of origin, its dry shape is poor, and its growth rate is slow, and it has not received much attention. In the 19th century, New Zealand radiata pine entered New Zealand. Thanks to the unique climatic conditions of the island country, the radiata pine settled down smoothly and grew exceptionally well. Through modern genetic breeding and intensive management techniques, the current yield per unit area of ​​the radiata pine plantation in New Zealand has increased by 30% compared with 60 years ago. The radiata pine industry has become one of the pillar industries of the country, and forestry workers account for about 0.56 of the total population. %. In addition to New Zealand, radiata pine has been well developed in Australia, South Africa, Chile and Spain. The radiata pine is vertically distributed in the area of ​​0-330 meters above sea level. The climate in the distribution area is humid. The annual precipitation is 380 mm to 800 mm, the annual average temperature is 16.7 °C to 18.3 °C, and the absolute minimum temperature is -6.7 °C. 43 ° C, no snow in all seasons, frost-free period of 300 days. According to the introduction and promotion of various countries, the adaptation range of radiata pine to climate is far wider than the original area. The average temperature is 12 °C ~ 20 °C, the highest temperature is 46 °C, the annual sunshine time is more than 2000 hours, and the annual precipitation is 600 mm. It can grow in the area of ​​~1250 mm (except for the winter rain type climate, the rain type can also be used, and the humid climate is the best). Pinus radiata has a strong adaptability to the soil. In the coastal sand dunes in the northern part of New Zealand's North Island, the radiata pine forest grows well, effectively preventing wind and sand intrusion, and the moving sand dunes are fixed. The central part of the North Island is New Zealand's famous radiata pine plantation center. Most of the soil is volcanic ash; The soil in the southern part of the island and the northern part of the South Island is mainly loam and sandy loam. In general, radiata pine is resistant to barrenness and is not demanding for soil types such as sand, light saline soil, and altitude. Therefore, in addition to timber, it is also a good tree species for barren hills and wasteland. After decades of tireless efforts by New Zealand forestry scientists, Pinus radiata has become a highly fast-growing, versatile timber species that is extremely rare in the world's coniferous species. Under the conditions of intensive forestry management in New Zealand, the average annual growth of radiata pine can reach 28 cubic meters per hectare, the rotation period is 20 years to 25 years, the accumulation volume is 650 cubic meters to 800 cubic meters per hectare, and the height can reach 40 meters. Above, the average single plant volume is 2.4 cubic meters. Moreover, there have been no reports of large-scale devastating pests and diseases. If the yield of New Zealand radiata pine plantation is compared with that of tropical forest production, 1 hectare of radiata pine plantation is equivalent to 10 hectares of tropical forests in Southeast Asia, or 20 hectares of Babia New Guinea tropical forest, or 40 hectares of Amazonian rivers. Tropical forest. The annual average growth of New Zealand radiata pine per hectare is 20 cubic meters to 25 cubic meters compared with other countries' timber species. Chile pine pine is 18 cubic meters to 21 cubic meters, and American long pine is 7 cubic meters. Sweden, Russia and Canada have spruce of 4.0 cubic meters, 1.6 cubic meters and 1.5 cubic meters respectively. Pinus radiata wood is a high-quality soft material with medium density, uniform structure, average shrinkage efficiency and high stability. There are no problems with decay, heart rot and insect bites in intact logs. The wood has good nail holding power, strong permeability, and is easy to be treated with anti-corrosion, drying, curing and coloring. The use of radiata pine wood is very extensive, which is unmatched by other conifer species. Pinus radiata is a good material for building wooden houses. It is distributed in the beautiful and comfortable housing in New Zealand's urban and rural areas. Most of them are built with radiated pine wood and have a service life of more than 100 years. Pinus radiata wood can also be used in large buildings, such as the main building of the New Zealand National Forestry Research Institute, which is a radiata pine wood structure. Pinus radiata is a high-quality material for the manufacture of wood-based panels. All kinds of wood-based panels produced in New Zealand are basically made of radiated pine. The products are sold well in markets such as Australia, Japan, Korea and Singapore. The radiata pine wood fiber is a good material for producing high-strength paper, which can be used to produce thin leaf paper, printing paper, wrapping paper, newsprint, cardboard and other paper products. The radiata pine wood has a soft color and strong nail holding power. It is a good furniture material. With the curing technology, the radiated pine material furniture can be made stronger and has a better color texture. The anti-corrosion treated radiata pine wood is a good material for making poles and has a long service life. New Zealand pasture fences are made of radiated pine wood. The radiata pine wood is treated with sodium phenolate to make railway sleepers with strong anti-corrosion properties. The radiation pine material is soft, has good mechanical processing performance, and has the characteristics of easy cementation and dyeing, and is suitable for processing various handicrafts and finished products. The magical growth characteristics of New Zealand radiata pine have received much attention. In the 1920s and 1930s, New Zealand developed a climax of large-scale construction of Pinus radiata plantations. But the use of modern genetic techniques to improve radiata pine has only been a matter of recent decades. After decades of continuous efforts, radiata pine has become a household timber species in New Zealand, and timber production has reached a stage of sustainable development. The various forest products manufactured with radiata pine have continuously entered the international market, making New Zealand the main wood in the world today. One of the producing countries. According to the latest statistics, the current forest coverage rate in New Zealand is 30%, and the forest area is 8.1 million hectares, of which the artificial forest area is 10.7 million hectares. In plantations, the area of ​​radiata pine forest is 1.56 million hectares, accounting for 92%. Natural forests are mainly used for landscaping, water conservation and soil and water conservation. Wood production basically comes from radiata pine plantations, which account for less than 20% of the total forest area. That is to say, New Zealand uses less than 6% of land to fundamentally solve the timber supply. The problem has been praised by the world. Forest products are an important export commodity for New Zealand. According to statistics, 10% of the world's plantation timber comes from New Zealand. The supply of forest products in New Zealand has accounted for 1.1% of the world trade in forest products and 8.8% in the Asia-Pacific region. Moreover, these forest products are only from 0.05% of the world's forest resources, and the annual harvested area is only 0.0009% of the global forest. All of this success can be attributed to New Zealand’s high-yield and sustainable management of plantations. Before the 1970s, Chile was a country with a shortage of timber, and since the 1980s, Chilean radiata pine wood has gradually exported to the international market. The reason for this rapid change is attributed to the promotion of radiata pine. In the past, the successful decision of Chilean forestry was to increase the forest resources and increase the production of commercial materials by introducing radiata pine and eucalyptus. The Chilean forestry department hired New Zealand forestry experts to guide, and in just 20 years of hard work, it finally came to a miracle. In addition to New Zealand and Chile, radiata pine has been successfully developed in Australia, South Africa and Spain. According to experts, radiata pine can grow in some areas of China. Moreover, if high-tech intensive management is adopted, its fast-growing, high-yield and high-quality characteristics can be fully utilized. By understanding the ecological characteristics of radiata pine species and the natural conditions of the relevant provinces, it is preliminarily believed that some areas of Guizhou, Sichuan, Chongqing and Yunnan in the southwest are ideal areas for the development of radiata pine in New Zealand. In addition, Hanzhong, western Hubei, and Xiangxi to the south of the Qinling Mountains may also be suitable for the growth of radiata pine. Therefore, the approximate distribution line of radiata pine is south of the Qinling Mountains and south of the Yangtze River. The northeast, north China, and northwestern winters are severely cold, and are not suitable for the growth of this species. Radix pine is resistant to poor soil and has wide adaptability. It is an ideal tree species for soil and water conservation. In the middle and upper reaches of the Yangtze River, some areas with high slopes and steep soil erosion can be used as pioneer species for returning farmland to forests. In some areas with better site conditions, a fast-growing forest base can be established for the production of pulp and board raw materials. Pinus radiata is still a new species in China, and the specific adaptation range and growth characteristics of geographical distribution need further study.
Are you tired of struggling with your old ice cube trays which make ice cubes slithering across your counter or floor, freeze excess water and keep the ice cubes altogether, and separate cubes easily?
A Must-Have Kitchen Gadget
Each ice cube tray features 14-cube and a smart removable lid, which helps you make nice-sized cubes easily. Just fill the trays with water/fruits/ ice cream/soda/wine, cover the lid and then put them into the freezer. Since it is dishwasher safe, you could just put them into your dishwasher after use.
Professional Quality and Easy to Use
Made of PP and TPE (silicone) material is safe and durable. With the TPE material made at the bottom, it is easy to remove the ice cubes. The smart removable lid helps prevent the freezing of excess water and keeps ice cubes from absorbing freezer odors.
Space-Saving Feature
These easy ice cube trays could stack easily and securely in the freezer without sticking, saving some space for other items.
How to Use:
1. Pour water into each of the compartments lower than the water level.
2. Simply let the ice cube sit at room temperature for a while until it can be easily removed from its trays.
3. Push the silicone bottom to easily pop out the ice cubes.
4. Unidirectional twist design, Please don't reverse twisting.
Ice Cube Mold,Personalized Ice Cube Mold,Round Ice Cube Mold,Large Ice Cube Mold NINGBO NEWMORE IMP. & EXP. Co., LTD. , https://www.zjnewmore888.com