First, read the English article below.

Using a small handsaw, cut about a half inch to an inch (1.3cm-2.5cm) off the bottom to aid water absorption.  Note: It is recommended that you don't cut the base at an angle, in a V-shape or drill a hole in the base. None of these methods help water absorption and they may make it more difficult to hold the tree safely in the stand. DO NOT cut the tree with a reciprocating saw or any blade that moves so fast that it will create friction. If the cut gets hot enough, the sap in the tree will seal the end and make water absorption impossible. A chainsaw or manual saw will work. That is how long a fresh tree can go without water before absorption is jeopardized. A Christmas tree should never be mounted dry. It is much better to place it in a container of water that is replenished on a regular basis. You can buy special tree cradles or stands which screw into the base of the tree and provide watering space. Or, you can go for the rougher but tried-and-true method of using a bucket filled with small rocks (put the tree in, fill the bucket with rocks around the trunk). The tree should be provided with 1 quart (950ml) of water for every inch (2.5cm) in trunk diameter. Note: ensure that whatever you use, the tree is stable. Don't whittle down the bark of the tree just so that it can fit in the stand - that outer layer is the part that absorbs the most water. It is a good idea for at least two people to put up the tree, one holding it stable while the other fixes the base. Always stand back to check that the tree is straight before you get busy decorating. Obviously, it is easiest to fix at this stage.  Before decorating let the tree sit for a while to "settle" into its shape. Some suggest just an hour or so, others overnight. 

Now, please write a short abstract for it in Chinese. Abstract:
准备好圣诞树的根基。 在砍削根基后的八个小时内要将树木进行种植。 确保树是直立的。