You are allowed to target a land with a Power even if only some of its effects can be performed. According to the rulebook:

• "When resolving a Power’s effects, do as much as you can. If one part does not apply or cannot be done, skip it and do the rest. The only targeting restrictions are those in the target bar."
• "You do not have to be able to use every part of a Power Card’s effect to be able to play it."

This means you do not need all effects to be applicable to the chosen land; as long as the land meets the requirements in the target bar, you may target it and resolve as much of the Power as possible.

Source: page 17

Source: Core Rulebook (pp. 17, 18, 19, 20, 31)