A　model　with　Chinese　characterization　factors　for　quantifying　the　damages　to　environment　by　land　use　in　terms　of　the　change　in　net　primary　productivity　(NPP)　of　ecosystem　was　developed　in　the　framework　of　life　cycle　assessment　(LCA).　In　this　method,　the　forms　of　land　utilization　were　divided　into　two　aspects　involving　long-term　use　of　land　(e.g.,　for　arable　farming),　namely　＂land　occupation＂,　and　the　change　of　land　properties　(e.g.,　from　agricultural　area　to　urban　area),　namely　＂land　transformation＂.　Furthermore,　the　land　use　elementary　flows　(occupation　and　transformation)　and　parameters　were　linked　to　the　impact　indicators,　and　the　characterization　formulas　of　the　two　forms　of　land　utilization　were　derived　respectively　according　to　the　ecological　theory.　Moreover,　based　on　this　method,　the　characterization　factors　of　both　land　occupation　and　land　transformation　were　calculated　using　Chinese　empirical　information　on　NPP,　which　can　be　incorporated　into　LCA　framework　and　applied　to　Chinese　LCA　case　study　to　fill　up　the　important　gap　in　life　cycle　impact　assessment　(LCIA)　of　land　use.