hello, first, the research field of the topic report: in the process of research study, we went deep into canteens, restaurants and other places to conduct on-the-spot research and master first-hand information, which provided a solid foundation for our future innovation. Research period of the subject: from December 9, 27 to April 9, 27. Reasons for proposing the subject: Disposable chopsticks have become a hot topic in the society, and some people think that the convenience and cheapness of disposable chopsticks will bring convenience to people's lives; Some people think that using disposable chopsticks will cause serious damage to the environment. How to treat disposable chopsticks is the problem we want to study. How to recycle used disposable chopsticks, so as not to pollute the environment and waste resources? What are the current international methods to deal with disposable chopsticks? What is people's attitude towards disposable chopsticks? The purpose of this research is: ① To understand the history and development of chopsticks. ② Understand the disadvantages of using disposable chopsticks. ③ Understand the current situation of using disposable chopsticks. ④ Understand the current situation of recycling disposable chopsticks. ⑤ Explore how to better handle disposable chopsticks. ⑥ Cultivate the ability of information collection, processing and integration. Project research plan: the first stage: this stage is mainly to determine the research ideas and methods of the whole project, clarify the purpose of the research and determine the division of labor. The second stage: this stage is the active stage. The third stage: this stage is the summary and creation stage. The fourth stage: this stage is the conclusion stage. Results form: survey report instructor: (no teacher selected) Team members: Chen Bailin, Wang Yun, Class 4, Grade 25 (subject to the leader of the project) II. Records of the research process (please click) III. Project conclusion report instructor: Zhang Jiayan
Members: Wu Zengli, Lin Xingyun, Mao Zechun, Tang Shizhen. With the development of China's economy, there are more and more employment opportunities in Zhao Bo. Therefore, faced with busy work, most people don't have time to cook, so they choose fast food restaurants to barely cope with a meal. In this regard, some restaurants have replaced ordinary chopsticks because disposable chopsticks are cheap, convenient and hygienic.
We also conducted a survey on the things around us. The results show that we use about 15 to 2 pairs of disposable chopsticks a day in the dining hall of No.4 Middle School, while fast food restaurants outside the school use about 3 pairs a day, and some big food stalls and small restaurants also need 5 pairs a day. According to records and calculations, as far as more than 2 restaurants near our school are concerned, more than 5, pairs are used every day. We may think that these are nothing, but after careful investigation, although disposable chopsticks are only a few cents good and almost a few cents, they are still discarded as garbage after use. At present, there are nearly 1, enterprises producing wooden chopsticks, which consume about 5 million cubic meters of forest resources every year, accounting for about 18% of the total annual consumption, and the wood requirements for producing chopsticks are also quite strict, requiring natural white pine and birch with a growth period of 7-8 years. China now produces about 45 billion pairs of disposable chopsticks every year, and it needs to cut down 25 million trees. However, the forest coverage rate in China is only 13.4%. In the long run, the forest in China will suffer. Survey 1: survey location: Longshepo, Donghu Yiheng Road
survey name: old-fashioned rice noodle shop, Kangmei fast food restaurant, Donghu fast food restaurant and Ardun Sichuan restaurant
survey purpose: the use of disposable chopsticks
survey process: after school every noon and afternoon, it was found that every store used disposable chopsticks, and the consumption was large, and the garbage bins at the door were all used disposable chopsticks.
survey results: on average, each fast food restaurant uses about 3-5 pairs of disposable chopsticks a day, and the chopsticks are not recycled after use, but directly thrown away.
Summary: Disposable chopsticks are made of trees. Although it is sanitary to use so many disposable chopsticks, how many trees have to be cut down to make chopsticks? Moreover, chopsticks are not recycled to make paper pulp after use. It causes great waste, so it is suggested to use less disposable chopsticks.
survey 2: the number of disposable chopsticks used in the name of local shops
18-2 pairs/day in Nansha Road Northeast Dumpling House
25-3 pairs/day in Nansha Road Sunshine Fast Food Restaurant
3-4 pairs/day in Nansha Road Fulai Fast Food Restaurant
28-35 pairs/day in Nansha Road Economic Fast Food Restaurant/ Day
Nansha Road casserole rice noodle 16-2 pairs/day
Summary: Five stores consume more than 2 pairs of disposable chopsticks every day on average. Most of these disposable chopsticks are made from trees and can be used after factory processing. Moreover, disposable chopsticks are cheap, easy to use, hygienic and avoid cross-infection diseases, so the waiters in these stores say that they mostly buy disposable chopsticks, and so do the surrounding shops. I learned from the waiter that most consumers throw them around after use, rather than in the designated boxes, so disposable chopsticks not only waste resources, but also pose certain harm to the environment. Survey 3: Survey location: Innovation Village, Wuxi Road, Haidian
Survey name: Wuji Food Stall, Laohekou Hot Pot, Luji Seafood City, Longxiang Food Stall
Objective: Usage of disposable chopsticks
Process: There are more tourists in the morning and evening, and the consumption of chopsticks is relatively high. Some people don't need to use disposable chopsticks, but also use them, which leads to the waste of chopsticks. I found that. It has caused a waste of resources that cannot be recycled. Disposable chopsticks are made from the processing of trees. In order to avoid cross-infection, consumers who use them more often use disposable chopsticks. The supply of chopsticks reduces the forest area and brings considerable income to loggers. In order to pursue more income, they are crazy about logging. In this way, the forest will be destroyed, which will lead to soil erosion and flood. The natural alarm warns us to use less disposable chopsticks to protect the forest.
survey 4: number of stores
Wuji food stall 4-8 pairs/day
Laohekou hot pot 8-1 pairs/day
Luji seafood city 8-1 pairs/day
Longxiang food stall 1-5 pairs/ Days
Investigation shows that:
Economic fast food restaurants use 45 pairs of chopsticks a day
Diners' food stalls 35 pairs a day
Good food shops 37 pairs a day
Sauvignon Blanc Chongqing Food stalls 5 pairs a day
Qinglong Food stalls 65 pairs a day
Summary: According to this investigation, in the East of Civilization, It is obvious that there are about 11 million pairs of disposable chopsticks used here every year, and sometimes there will be more. This data will be much more than this data. This shows that more than 1 trees are needed here every year, so tens of thousands of trees will be cut down in Haikou every year. And the number of trees planted in Haikou every year is far higher than that in previous years. Sometimes many seedlings will die because of the influence of the environment, and the pollution will be very serious. This can be seen not only from its usage, but also from its handling: most disposable chopsticks will not be recycled. But gather together and burn it, which seriously pollutes the atmosphere. So if we don't use disposable chopsticks, it will indirectly protect our common home, so that the air in Haikou will become more and more fresh. There is a more beautiful environment. Let's stop using disposable chopsticks, be a caring and responsible citizen, and make Haikou's tomorrow more beautiful! Summary report: For the general public, when eating out, watching others use disposable chopsticks and choosing to use disposable chopsticks themselves, they feel convenient and hygienic and can use them with confidence. It can be seen that quite a few people have not recognized the "dangerous" nature of disposable wooden chopsticks. People use disposable wooden chopsticks for convenience and hygiene, but in the actual production and use process, many disposable chopsticks have serious health hazards. The production and processing of disposable wooden chopsticks have to go through more than a dozen processes, such as cutting down trees, cutting off and punching blanks. In order to make chopsticks look white and clean, the formed chopsticks should be smoked with sulfur, and those that are not smoked white should be soaked and bleached with hydrogen peroxide and sodium sulfate, and then polished with talcum powder. In fact, for the commonly used disposable chopsticks, consumers can't judge the hygiene only by naked eyes, but only by laboratory tests. Experts pointed out that after bleaching, a lot of water is needed to cook or rinse. But in the actual manufacturing process, no one uses that much water. It has been reported that 93% disposable chopsticks in Taipei market are bleached by sulfur dioxide fumigation. The longer the fumigation time, there are generally three ways to bleach disposable chopsticks, using sulfur dioxide, hydrogen peroxide or calcium (sodium) hypochlorite for bleaching. The whiter these three seeds are, the more sour they smell. Manufacturers usually ignore the boiling step after bleaching by sulfur dioxide fumigation. Residual sulfur dioxide combined with other substances will become sulfite, and sulfite is considered to cause asthma in the medical field. Because of the simple production process, most wooden disposable chopsticks often fail to meet the hygiene standards, which is not conducive to health. Disposable chopsticks are in direct contact with people in use, and if the hygiene index fails to meet the requirements, it is likely to lead to the occurrence and spread of diseases. Long-term use may also lead to some chronic diseases that cannot be detected in the short term. Now, more and more people have realized that disposable chopsticks are unhealthy and harmful to human body. But people still can't refuse to use disposable chopsticks in their daily life. In fact, restricting the use of disposable chopsticks is actually changing people's way of life and a habit. People concerned appeal that people should try to use strictly sterilized chopsticks when eating out, and refuse disposable chopsticks that are both harmful to the environment and unsanitary with practical actions. World forest coverage: 67% in Japan, 64% in Korea, about 6% in Norway, 54% in Sweden, 5-6% in Brazil, 44% in Canada, 3% in Germany, 33% in the United States, 27% in France, 23% in India and 16.5% in China!
1. Climatic anomalies: Without forests, the evaporation of water from the surface will increase significantly, which will cause changes in the heat balance of the surface and the heat distribution in the troposphere. As the temperature near the surface rises, the temporal and spatial distribution of rainfall will change accordingly, which will lead to climate anomalies and cause climate deterioration in local areas, such as decreased rainfall and increased sandstorms.
2. increase carbon dioxide emissions: forests play an important role in regulating carbon dioxide content in the atmosphere. Scientists believe that the world's forests absorb about 1.5 billion tons of carbon dioxide every year, which is equivalent to 1/4 of the carbon dioxide released by burning fossil fuels. Deforestation reduces the ability of forests to absorb carbon dioxide, and releases carbon originally stored in organisms and surrounding soil. According to the estimation of FAO, more than 1.5 billion tons of carbon dioxide are released into the atmosphere every year due to deforestation.
3. Species extinction and biodiversity reduction: Forest ecosystem is one of the regions with the richest species. Thousands of animal and plant species are threatened with extinction due to forest destruction all over the world. The flora and fauna of the tropical rain forest may include half of the known species, but it is disappearing at a rate of 4.6 million hectares per year.
4. Intensify soil erosion: Large-scale deforestation usually causes serious soil erosion and aggravates natural disasters such as land desertification, landslides and mudslides. 5. Reduce water conservation and aggravate the flood disaster: Forest destruction also fundamentally reduces the water-holding capacity of soil, and the siltation of rivers and lakes caused by soil erosion leads to large-scale flooding, which intensifies the impact and harm of floods. If everyone only uses one pair of disposable chopsticks every day, it will take 365 pairs a year, and China's 1.3 billion people will use 474.5 billion pairs of disposable chopsticks. {1*365*13=4575 pairs}. Let's carefully calculate this comparison with the "chopsticks account", and suggest that people bid farewell to the topic name of disposable chopsticks. < P > The instructor Zhang Jiayan studied on May 1, 25. < P > The members of the research group were named and gendered. < P > Wu Zengli presided over the meeting and planned the plan. Draft, decide the plan
Tang Shicun collates data, investigates and plans the plan
Chen Liangchuan searches books and writes papers in Class 8 of Male Senior 1, discusses with the team leader
Mao Zechun's actual investigation in Class 8 of Male Senior 1, and cooperates with the team leader
Liu Wenqiang's actual investigation in Class 8 of Male Senior 1. Cooperate with the team leader's work
Lin Xing-kun collates materials in Class 8, Grade 1, Senior High School, and investigate
Zhao Bo's background or problem of searching materials online, typesetting, designing and printing
: Because everyone eats in fast food restaurants, they accidentally find that the use of disposable chopsticks is amazing. We think of the change of forest area in our country, so we decide to investigate the disposable chopsticks.
Significance and value of the research: Through the investigation on the use of disposable chopsticks, let us know the usage rate of disposable chopsticks in China, as well as its harm and waste of resources. Through this study, we advocate caring for the forest, hope everyone has the virtue of environmental protection, and refuse disposable chopsticks at the same time!
The main research methods: social investigation, collective research, online information search, mutual discussion, and understanding of the hazards of disposable chopsticks.
research stages and steps (activity plan): (1) determine the research topic through mutual communication and discussion among team members. (2) Plan the scheme, establish the research route and research focus, and investigate the division of labor among each team member to collect data. (3) Classify the collected data, discuss with the instructor, write a paper, and finally typeset and design.
presentation form of research results: papers, pictures, reports, Experience
Instructor's Opinion Instructor's Signature: Year Month
School Research Studies Signature of opinion leader of Xi Leading Group: Year, Month and Class