This work was designed to investigate the changes in total soil organic carbon and carbohydrate content and their relations to soil aggregate stability under different land use types in dry grassland induced by cultivation and intensive-grazing, compared with extensive-grazing.
与自然放牧地相比较,围栏草地土壤总有机碳和碳水化合物碳含量显著增加;耕种土壤总有机碳含量变化不明显,但碳水化合物碳含量显著降低。
The influence of cultivation on spatial variability of soil total phosphorus (STP) in sandy land was studied, utilizing the low land of southeastern Keerqin Sandy Lands, and the combined technique of classical statistics and geostatistics.
利用经典统计学和地统计学相结合的方法,以科尔沁沙地东南缘的丘间低地为例,分析了农业耕种对沙地土壤全磷空间变异性的影响。
To meet the need of information warfare research,the theories and key techniques of data farming based combat simulation are analyzed.
针对信息化作战研究的需求,分析了基于数据耕种的作战仿真理论及其关键技术。
Data farming is a new method for researching and analyzing war complex system,which is the key technology for developing and researching in the Marine Corps Warfighting Laboratory s Project Albert.
数据耕种技术是用于研究和分析战争复杂系统的一种新方法,它是美国海军陆战队作战实验室Albert计划中专门研究和发展的核心技术,目前已成为国内外战争复杂系统领域研究的热点之一。