The importance and necessity of implementing the balance system of farmland requisition and compensation are reasoned. The changing path of the balance system of farmland requisition-compensation is overviewed. In addition, the problems exist in the implementation of the balance system of...

In summer maize growth period, the water supply and demand ratio is regarded as the evaluation index of drought and waterlogging for the summer maize in Liaocheng City. Using GIS, statistics, agrometeorology and other methods, we analyze the precipitation during the summer maize growth period in...