What are the benefits of eco-circular agriculture? ...

Environmental protection, of course. The following is what Baidu knows:

Ecological cycle agriculture ecological cycle

Looking at agriculture again, it is simply the "three high agriculture (high yield, high quality and high efficiency)" under good ecological conditions. It does not simply focus on the output and economic benefits of that year, but pursues the high unity of three benefits (namely, economic benefits, social benefits and ecological benefits), so that the whole agricultural production can enter a virtuous circle of sustainable development. Turn the dream of "green mountains, green waters and blue sky, all produce green food" into reality. Since 1980s, ecological agriculture has appeared in some developed agricultural countries in the world, which has aroused widespread concern in all countries, and its development momentum is very rapid and unstoppable. Willy Dewald, a European ecologist, predicted that due to the terrible "mad cow disease" in Europe, the world's ecological agriculture (or organic agriculture) will develop greatly in five or six years, and it is predicted that the ecological agricultural products will increase by 10% than now. Ecological agriculture is a brand-new agriculture gradually formed with the continuous development of the whole agricultural production. To do a good job in the construction of ecological agriculture, on the one hand, we should pay attention to summarizing and popularizing the experiences and practices suitable for ecological agriculture in traditional agriculture in China, such as reasonable rotation, planting green manure, applying organic fertilizer, digging cross slopes, building water and leveling fields, etc. These are all measures that farmers are very familiar with and willing to accept; On the other hand, it is necessary to strengthen research and popularize advanced new eco-agricultural technologies, such as photolysis membrane, biological pesticides, biological fertilizers, straw returning to fields, water-saving irrigation, etc., in order to reduce white pollution. Practice shows that in the construction of ecological agriculture, only by combining the two measures can better results be achieved. Ecological agriculture, that is, ecological circular agriculture, can be said to be a great agriculture with indomitable spirit. Therefore, in order to complete this very complicated and arduous task, we must adhere to the principle of "paying equal attention to agriculture, forestry, animal husbandry and fishery, and comprehensively managing landscape and farmland roads", do a good job in construction planning on the basis of investigation and study, and promote different types of ecological agriculture construction models according to local conditions. Practice shows that no matter which eco-agricultural model, we should pay special attention to three main measures, namely, biological measures (such as planting trees, planting grass, increasing green manure, etc.). ), engineering measures (such as harnessing large rivers, building horizontal terraces on sloping farmland, etc. ), as well as cultivation measures (such as reasonable rotation, subsoiling and less tillage, cross slope, returning straw to the field, increasing farm manure, etc.). These three main measures complement each other and are indispensable. Characteristics of agro-ecosystem 1. Agro-ecosystem is a complex large-scale system in which the production activities of nature, biology and human society are intertwined, and it is a biomass production process combining "natural" reproduction with economic reproduction. The so-called "natural" reproduction process refers to planting, aquaculture and marine fisheries, which is essentially the reproduction process of organisms themselves, not only controlled by their own inherent genetic laws, but also influenced and restricted by many factors such as light, heat, water, soil and climate, that is, by natural laws. The process of economic reproduction means that agricultural production is carried out according to the economic purpose of human beings, and the input and output are influenced and restricted by various social conditions such as economy and technology, that is, they are dominated by social and economic laws. Human beings engage in agricultural production, that is, using and promoting the photosynthesis of green plants, converting solar energy into chemical energy and inorganic matter into organic matter, and then raising animals to improve their nutritional value, so that agricultural ecosystems can provide agricultural products to the society as much as possible. At the same time, human beings use economic leverage and science and technology to improve and protect natural productive forces and improve economic benefits. 2. To develop agriculture, we must deal with the relationship between good people, biology and environment. We should guide and develop agricultural production according to the basic law of the unity of ecology and environment. Farming, forestry, animal husbandry and fishery production are all biological reproduction processes, and various types of "natural" ecosystems have been established between them and the environment. Only when the biological and abiotic environments coordinate and adapt to each other can agricultural production achieve the best results. As the saying goes, the right time, the right place and the right people get twice the result with half the effort. If you do the opposite, you will get nothing. Agricultural production is a process of energy and material circulation. Whether it is the environmental conditions of energy and material providers or the organisms of producers, their production capacity is limited under certain time and space conditions. If it exceeds its limit, it will destroy the ecological balance, make natural resources decline and agricultural production decline. Because the fishing intensity is too high, which exceeds the regenerative capacity of fishery resources, the main marine economic fish resources in China are exhausted day by day. Similarly, in the use of cultivated land, the combination of tillage and use is neglected, which leads to a serious decline in soil fertility and soil degradation. After a large amount of material and energy flows out of the agricultural ecosystem with commodities, it needs enough material and energy from outside to maintain its balance. Therefore, agricultural resources can not only be used, but must be protected and recuperated to promote the proliferation of resources and increase agricultural output. 3. Establish a reasonable, efficient and stable artificial ecosystem to promote agricultural modernization. Agricultural production is an artificial ecosystem based on natural ecosystem, with much simpler structure, fewer species, short food chain and weak self-regulation ability, which is easily influenced by natural climate, pests and weeds. The instability of agricultural production is largely restricted by the natural environment. To achieve better economic benefits, it is necessary to create a good agricultural ecological environment. A good agricultural ecological environment depends on the support, protection and regulation of forests, grasslands, waters and other ecosystems. Agricultural ecosystem should be more productive than natural ecosystem, so in addition to solar radiation, auxiliary energy such as agricultural machinery, fertilizers, pesticides, irrigation and drainage, harvesting, transportation and processing must be increased through human labor and management. Only by constantly adjusting and optimizing the structure and function of the ecosystem can we get the maximum output with less input, achieve good economic, social and ecological benefits, and establish a reasonable, efficient and stable agricultural ecosystem.