黑龙江省国有林区林业生产率变化研究——2000~2009年天然林资源保护工程期实证分析
흑룡강성국유림구임업생산솔변화연구——2000~2009년천연림자원보호공정기실증분석
Study on Forestry Productivity Changing in the State-owned Forest Region of Heilongjiang Province An empirical analysis based on natural forest resources protection project (2000-2009)