Soil is material base of agriculturalecologicalsystem and main studied object of agricultural geology.
土壤是农业生态系统中的物质基础，是农业地质研究的主要对象。
2
According to the thermodynamic law and the characteristics of agriculturalecologicalsystem, the entropy of agriculturalecologicalsystem was defined.
本文以热力学定律为依据，根据农业生态系统的特性，给农业生态系统的熵下了定义。
3
The system exhibited higher information management efficiency and query speed, as well as good applicability and guidance on ecological layout and decision support for agricultural farming.