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发展大农业为什么要提出植物生态学基本观念呢?因为大农业生产包括植物生产和动物生产,动物不能自制食物,它们都是直接或间接依靠绿色植物而生活,溲有植物就不会有动物。绿色植物的叶吸收大气中二氧化碳,根摄取土壤中矿物养分和水分,在一定温度和日光照射下进行光合作用,把水分、矿物养分、二氧化碳等无机物质转化为淀粉、蛋白质、脂肪、维生素等有机物质;也就是把太阳能转变为化学聍藏能。但是,绿色植物在生长发育中所需要的光、热、水、土、气等因素则因具体情况而不同,这些因素就叫做生态因素。人们为了更好地取得物质和能量的转化的效果,就必须正确地理解上述生态因素与植物生长发育的关系,也就是要正确认识植物生态学的一些基本观念。有那些基本观念呢?
Why is the development of large-scale agriculture put forward the basic concept of plant ecology? Because of the large-scale agricultural production, including plant production and animal production, animals can not make food, they are directly or indirectly dependent on living green plants, there is no plant without animals. The leaves of green plants absorb carbon dioxide in the atmosphere, and the roots take in mineral nutrients and water in the soil, carry out photosynthesis under certain temperature and sunlight, and transform inorganic substances such as moisture, mineral nutrients and carbon dioxide into organic substances such as starch, protein, fat and vitamins Substance; that is, the solar energy into a chemical possession of Tibet. However, the factors such as light, heat, water, soil and gas required by the growth and development of green plants are different depending on the circumstances. These factors are called ecological factors. In order to obtain the effect of material and energy transformation better, people must correctly understand the relationship between the above ecological factors and plant growth and development, that is, to correctly understand some basic concepts of plant ecology. What are the basic concepts?