An area where I plan on building a raised bed is heavily mulched with leftover pine debris from my husbands firewood cutting endeavor. I've heard that pine chips are not good for gardens, because they bind nitrogen from the soil. I was hoping to just be able to rake the pine bark/chips into the ground, cover with newspaper, and build my raised bed over the top of this. I will then fill the bed with compost, soil, and other ammendments.

Will leaving and covering over the pine material really create a problem in my garden bed?