Which Metering mode is best for Landscape Photography? (I'm Using Nikon D7000)?

I know that Matrix metering mode is best for that But I'm not sure with it!

Strange, you say you know that matrix is best but still ask what metering mode to use!

Matrix metering will be fine a lot of the time, but it can be fooled. It depends a lot on the scene, particularly if you are shooting into a bright sun or have some other bright source of light which might fool the metering. It also depends on whether you want to expose for highlights, shadows or the general scene.

Sometimes I like to spot meter off some grass and compare meter readings in shadow and light areas before I decide what effect I want. Sometimes I will take several exposures to experiment. There isn't always just one "correct" exposure - you might want one particular thing in the scene to be correctly exposed, but that may leave other parts of the scene over or under exposed. It depends on what you are trying to achieve.

There's no "best", that's why you have a camera that you can fully control manually in your hands. It may do auto this, that, and the other, but it's still up to you to figure out which mode is best for each individual situation!