通过对吉林西部3个工作区土样的微量营养元素全量、有效量以及土壤pH值和有机质含量的测定,分析了土壤微量营养元素有效量特征及其......

In order to understand land use/land cover changes(LUCC) and the eco-environment response to LUCC in farming-pastoral zo......

This paper explains environmental problems from the point of economy. Referring to the “System of Integrated Environmen......

选取青藏高原典型多年冻土区风火山小流域高寒草甸和沼泽化草甸典型样地进行人工降雨截留试验,综合运用统计分析、模型回归分析等......