As a common restoration technique to degradation lake,biomanipulation mainly utilize the principle of descending effect.

Researches on restoration technology of degenerated artificial haloxylon ammodendron forest were carried out.

Based on the project case,the paper putts forward the mitigation measures and restoration technology for the highway borrow pit construction.

With the summary of the studying trend at home and abroad, it proposed the direction, operating procedure and objective of developing wetland research in the Yellow River delta, which provides reference for future research of ecosystem conservation of wetland and recovery technique in the Yellow River delta.

In the thesis,mechanism of packet loss was described,several current recovery techniques for packet loss were discussed and writers viewpoint was proposed.

In addition,the superconvergent recovery technology is employed in the 3- D parasitic capacitance adaptive computation where the hierarchical cone functio ns is added into the constant boundary elements.

On this basis, focusing on the extent of different damage citrus orchards of the Disaster Reduction and Recovery Technology development and technology demonstration, and then assembly large-area of the technology popularization and application, which greatly promoted the local citrus industry in post-disaster recovery and reconstruction.

On the basis of analyzing the different scale of the system size and technological capabilities in the ATC system, a design method of rapid recovery technology is proposed.