摘要
以中国林业科学研究院热带林业实验中心(热林中心)1998年、2004年和2009年3期森林资源调查成果为主要信息源,在地理信息系统软件的支持下,通过分析景观指数,对热林中心3个时期的景观格局作了系统分析。研究表明:1998-2009年,有林地景观要素占所有景观要素面积的49%以上,呈现出面积大、斑块数目多、优势度高的特征,它对热林中心景观的结构功能起着主导作用。未成林造林地、非林地、无立木林地在1998-2009年期间面积分别减少283.83,538.84和1 507.11 hm2,疏林地在2004年和2009年2期数据中都已经不存在,宜林地面积在不断增加,苗圃和辅助生产这些为营林造林服务的土地面积也略有上升趋势。这些变化与热林中心近年来重视森林培育,精细化经营林地,对林地利用方式进行调整有关。
Forest subcompartment data for the survey years of 1998, 2004 and 2009 were used to systematically analyze the dynamics of landscape spatial structure at Experimental Centre of Tropical Forestry of Chinese Academy of Forestry, in terms of landscape index by using Geographic Information Systems （GIS）. It is found that the area of forest landscape element accounted for over 49% of all landscape elements area from 1998 to 2009 and showed the characteristics such as large area, many patches and high dominance index, which played a leading role in the landscape structure and function of Experimental Centre of Tropical Forestry. The afforestation for undeveloped forests, non-forests and no stumpage forests were reduced by 283.83, 538.84, 1 507.11 hm2 during 1998 - 2009, respectively, while the open forest land area disappeared in 2004 and 2009. However, forestation-suitable land area was growing, and nursery and auxiliary production area which were used to serve the business afforestation displayed a slight rise. These changes were related to the strengthening of the forest cultivation, the fine forest management and the adjustment of forest land-use patterns. [Ch, 3 tab. 26 ref.]
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2011年第5期706-712,共7页
Journal of Zhejiang A&F University
基金
国家林业公益性行业科研专项(200704019)
关键词
景观生态学
人工林
景观格局
动态分析
landscape ecology
forest plantation
landscape pattern
dynamic analysis
