论文部分内容阅读
N2O是一种重要的温室效应气体,不仅具有很强的温室效应,而且参与大气对流层和平流层的许多光化学反应,因而在全球变化的研究中受到广泛关注。综述了作物生长对土壤N2O排放影响的研究状况,为认识植物生长与土壤N2O排放的关系,调控和减缓土壤N2O排放提供依据。作物生长下的土壤N2O排放受植物类型、生长阶段、生长状况和人为管理等方面影响,植物通过引入光合产物到土壤,吸收利用土壤养分和水分改变土壤环境而影响土壤N2O排放,适当的人为管理措施可以调控和减轻土壤N2O排放。
N2O is an important greenhouse gas, which not only has strong greenhouse effect but also participates in many photochemical reactions in the troposphere and stratosphere. Therefore, N2O has drawn much attention in the study of global change. The research status of the effects of crop growth on N2O emission from soils was reviewed. It provided the basis for understanding the relationship between plant growth and soil N2O emission and regulating and mitigating soil N2O emission. N2O emissions of soils under crop growth are affected by plant type, growth stage, growth status and man-made management. Plants introduce soil photosynthetic products into the soil, and absorb and utilize soil nutrients and moisture to change the soil environment to affect soil N2O emissions. Appropriate man-made management Measures can regulate and reduce soil N2O emissions.