Complex sentence: Schrenk's Spruce is an important tree in central Asia for timber and paper production, where few other large trees exist; its slower growth compared to Norway Spruce reduces its importance outside of its native range.
Split into simpler sentences: Schrenk's Spruce is an important tree in central Asia for timber and paper production, where few other large trees exist. Its slower growth compared to Norway Spruce reduces its importance outside of its native range.