录像的

This article has studiedthe integer linear programming basic solution and its the applicationquestion.

本文就研究了整数线性规划的基本解法及其应用问题。

It not only arains natural resources day by day and decreases the biological diversity,but also seriously prevents the Loess platean's area econnomy from developing continuingly,then threatens the local people's living and development,thus,the study and governing of biological degeneration should be regarded seriously.

中文摘要：摘要：生态退化是目前黄土高原所面临的主要环境问题，它不仅使自然资源日益枯竭、生物多样性不断减少，而且还严重阻碍黄土高原地区经济的持续发展，进而威胁当地人民的生存和发展，因此，对生态退化的研究和治理应给予万分的重视。