At present, in the whole process of production, processing, storage, transportation and consumption of edible agricultural products in China, there are many aspects of waste and loss: from the form of loss, it can be divided into physical loss and biological loss The former refers to the loss caused by the reduction or consumption of food and other foods in the process of production and consumption; The latter refers to the losses caused by mildew, rot, deterioration and pollution of waste food in various processes of production, processing and consumption. From the reasons of loss, it can be divided into technical loss, man-made loss and policy loss. From the process of brain drain, it can be divided into prenatal brain drain, intrapartum brain drain and postpartum brain drain. To sum up, the serious loss and waste of grain in China are mainly manifested in the following aspects:
First, the loss of storage, transportation and logistics after grain harvest is serious. China's state-owned grain buying and selling enterprises have advanced grain storage technology and facilities, and adopted the "four-in-one" green grain storage new technology and new technology, which not only greatly reduced the loss rate of grain storage, but also maintained the quality of grain storage, which was well received by international grain institutions. However, the problem is that due to the backward technology and facilities in the circulation, storage, transportation and processing of rural grain and edible agricultural products in China, especially the grain storage of farmers even stays in the original state, and the postpartum losses such as loose release, mildew, pests and rodents are huge. It is estimated that it is as high as 30 million to 40 million tons per year, which is enough to feed a population of 65.438+0.5 billion to 200 million.
Second, the waste of high-quality food in the catering industry is amazing. In the catering industry of hotels, restaurants and restaurants in cities, the waste of grain and other grains is large and common. According to a survey conducted by China Agricultural University, wastes 8 million tons of protein and 3 million tons of fat on the dining table each year. The former is equivalent to the protein content of 20 million tons of soybeans, and the latter is equivalent to the oil content of 6,543,800 tons of soybeans.
Third, excessive consumption of human beings has also become a source of waste. First of all, we must affirm that China is a country of etiquette, valuing human feelings and stressing etiquette. However, the practices and behaviors of excessive human consumption, ostentation and extravagance, extravagant feasts, producing a lot of "high-grade garbage", wasting social resources and polluting the ecological environment must be corrected. In addition, food and food waste in collective canteens and families should not be underestimated. In some universities, middle school canteens and other collective dining units, throwing away food and dishes is quite serious. There is also a kind of "long-flowing" waste, which is not easy for individuals and families to detect and can not be ignored. For example, residents throw away extra meals at will, buy too much expired and moldy food, and then throw it away for garbage disposal. These wastes should not be underestimated.