动力学模型需要大量的田间实测资料，主要应用于农田氮素循环、定量评价水氮资源利用率、优化水肥管理措施等方面。
The DPM method needs lot of field data, mainly to study nitrogen cycle in field, assess water and nitrogen usage efficiency and optimize management soil water and nitrogen fertilizer.
年度降雨分布的极度不均和落后的土壤及水分管理措施是制约该地区农田生产力的主要因素。
High rainfall variety and poor management of soil and water are the most important and limiting factors in crop system in this region.
这些农田土壤的种植、翻耕、施肥、灌溉等管理措施不仅改变着农田生态系统中的化学元素循环，且给全球气候变化带来影响。
The management, such as plough, fertilization and irrigation etc. have not only changed the nutrient cycling in the farmland ecosystem system, but also brought influences to global climate.
农业非点源污染的评价是农田管理和水质控制的基础工作，对实施农田最佳管理措施具有指导意义。
Agricultural non point source pollution assessment is the basis of field management and water pollution control, which is significant when carrying out best management practices to farm ecosystems.
在耕种、施肥、灌溉等管理措施影响下，中国农田土壤中碳库的质和量发生了较大变化，这不仅影响了土壤肥力及作物产量，而且对区域及全球环境带来影响。
Management practices of tillage, fertilization and irrigation can influence the level and quality of SOC of China, having effects on soils fertility and crop yield, as well as on global environment.
在耕种、施肥、灌溉等管理措施影响下，中国农田土壤中碳库的质和量发生了较大变化，这不仅影响了土壤肥力及作物产量，而且对区域及全球环境带来影响。
Management practices of tillage, fertilization and irrigation can influence the level and quality of SOC of China, having effects on soils fertility and crop yield, as well as on global environment.
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