摘要
在遥感和GIS技术支持下，运用景观生态学的基本理论与方法，结合土地利用／土地覆被变化特征，通过分析景观类型的斑块大小、数量与形状特征以及主要景观要素间的转化关系，定量反映了1996～2000年三江平原景观数量结构与空间格局的变化。研究表明，该时期人类活动的强度较大，耕地面积显著增加和林地、沼泽湿地面积逐渐减少相对应，林地、草地和沼泽湿地向较分散小块分布发展，景观整体呈现破碎化的趋势。
Based on the Landsat TM5 and TM7 images by GIS and the basic theory and method of landscape ecology, the present agro -landscape pattern and its changes in the Sanjiang Plain during 1996～2000 are discussed in this paper. According to an analysis of patchiness of different land use/cover types and the transition characteristics among the main types, the cultivated land increased while the natural landscape types such as forestland, grassland and marshland decreased considerably. The number of patches of grassland, forest and marsh increased, but the patch area decreased, which shows a highly fragmented pattern in the study area.
出处
《国土资源遥感》
CSCD
2007年第3期78-81,I0007,共5页
Remote Sensing for Land & Resources
基金
中国科学院知识创新项目(KZCX1-Y-02)
国家"九五"科技攻关重中之重项目(96-B02-01)
