The development model of circular agriculture in foreign countries

At present, in the face of increasingly serious ecological, resource and environmental problems, how to learn from the concept of foreign circular economy, it is of great theoretical and practical significance to develop natural resources reasonably, maintain ecological environment effectively and explore the sustainable development path of eco-agricultural economy with Chinese characteristics. Let's take a look at how cities in the United States, Israel, Britain and Germany are developing circular agriculture.

Precision agriculture and sound legal safeguards in the United States 1. GPS widely used since the 1990s, the United States has successfully applied Global Positioning System (GPS) technology to the field of agricultural production. GPS has been widely used in corn, wheat, soybean and other fields of production management process. The statistics show that the yield of the crops which are used to guide fertilization is increased by nearly 30% , and the economic benefit is considerable by comparing the crops which are used to guide fertilization with those which are used to apply fertilizer by traditional methods. 2. In the United States, while successfully introducing science and technology into the agricultural field, the use of pesticides, fertilizers and other chemical substances is strictly controlled and the agricultural ecological environment is protected through relevant regulations, to maintain the natural attributes of ecological environment resources in order to obtain long-term economic benefits. The comprehensive agricultural support policy of the United States originated in the 1930s and New Deal to the 2014 agricultural law, which was developed and perfected over the decades, the formation of an advanced agricultural policy system covering environmental protection, encouraging scientific and technological development, stimulating agricultural export trade and agricultural taxation has greatly promoted the development of circular agriculture in the United States, significantly improved the international competitiveness of U. S. circular agriculture.

Water-saving agriculture in Israel 1. Israel Climate Israel belongs to the Mediterranean climate, characterized by: Long and hot, dry summer, and relatively short and cool, rainy winter. From Mount Hermon, at 2,810m above sea level, to the Dead Sea, below 392m above sea level, the regional nature of the Israeli climate is also evident because of its altitude, latitude and distance from the Mediterranean. 2. In order to adapt to the regional difference of climate, Israel effectively maintains the long-term and stable development of water resources and ecological environment in the region, the development mode of circular agriculture characterized by water-saving agriculture system has been formed. Water-saving agriculture is to improve the efficiency of water use, and is the systems engineering of comprehensive development and utilization of water, soil and crop resources.

Permanent agriculture in the UK 1. The characteristics of permanent agriculture permanent agriculture refers to the rational planning and design of agricultural production ecosystem, so that it has biodiversity, stability and natural ecosystem self-recovery. The characteristic of permanent agriculture is to allocate all kinds of resources reasonably on the basis of protecting natural ecological environment and saving resources, and to realize the maximum economic benefit. Permanent Agriculture is an act of land use and community building, the aim is to work towards the harmonious integration of human habitation, regional climate, annual and perennial plant, animals, soil and water into stable and productive communities. 2. The maintenance model of multiple planting and green cover technology uses cigarette butts to collect rainwater and turn human waste into useful fertilizer, the economic use and reuse of resources is central to the scientific and ethical foundations of permanent agriculture.

Green energy agriculture in Germany 1. The concept of green energy agriculture green energy agriculture means that people use crops (green energy type) to convert solar energy into organic energy, and store it in plants, and then through relevant scientific and technological means, an agricultural activity that converts organic energy into energy for human consumption. 2. German scientists have made green energy from the directional cultivation of crops such as sugar beets, rape, corn and potatoes, the green energy such as methane and ethanol can be produced successfully. At present, Germany can use rapeseed to extract vegetable diesel oil, to replace fossil fuel diesel used as power fuel, in addition, the plant can be used as a chemical feedstock through technological transformation.

The experience of developing circular agricultural economy in foreign countries shows that the perfect system of agricultural laws and regulations is the key link of developing ecological agricultural economy. The establishment of eco-agricultural economic laws and regulations according to China's national conditions can better guide the standardized development of eco-agriculture. In addition, through the implementation of subsidies, taxes and other policies, can make full use of market economy means to regulate the economic development of eco-agriculture, improve the actual income level of farmers or agricultural practitioners and living standards, to define the cycle of land circulation, guide migrant workers to return to rural areas, to ensure that the future of China's agriculture can be stable, healthy and sustainable development.

2、 Adjust measures to local conditions and plan scientifically

Modern ecological agriculture is a complex systematic project, which requires comprehensive and coordinated development of agriculture, animal husbandry, sideline, fishery and forestry industries. China is a vast country, with great differences in natural environment, resources, agricultural development history and economic status. Therefore, although the successful development model of foreign circular agricultural economy is worth learning and using for reference, the development of ecological agricultural economy with Chinese characteristics should be based on local conditions, scientific planning, full consideration of regional characteristics, overall optimization of the layout, and full and reasonable use of local resources to build a modern ecological agricultural system with Chinese characteristics.3、 Promote technological innovation and accelerate the transformation of achievements

Increasing human, material and financial input, and developing green, cost-effective and highly operable agricultural high-tech are the basis for the development of ecological agriculture. Being good at learning and absorbing foreign advanced science and technology, and accelerating the popularization and application of high-tech achievements, such as agricultural waste conversion resource technology, green ecological energy development technology, transgenic technology, etc., can better improve the status quo of ecological agriculture development, enhance the overall technical level of resource conservation, and improve the economic benefits of China's ecological agriculture.