摘要
通过采用2000和2011年TM遥感影像资料,选用多种景观格局分析方法分别从景观格局变化特征、转化特征、破碎度及多样性特征等方面研究了海南州近11年地表景观格局变化。研究结果表明：（1）草地是整个海南州地区最主要的景观类型,2000-2011年耕地、林地、人工用地和未利用土地均增加,草地和水域面积均减少。近11年景观类型斑块总数增加1155个。各种景观类型在空间分布上差异性较大;（2）2000-2011年海南州景观转化总面积为2022.13km^2,转化面积最多的是草地,最少的是人工用地。2000年向2011年所转化的各类型景观中,草地的贡献率最高;（3）从斑块类型和景观尺度分别来看,2000-2011年海南州景观受到的干扰程度和破碎化程度在增加,景观空间的异质性程度在增大,团聚程度降低,多样性和优势度也显著降低。
By using TM remote sensing image data in 2000 and 2011 and a variety of landscape pattern analysis methods,the landscape pattern changes of Tibetan Autonomous Prefecture of Hainan in nearly 11 years were studied in terms of the changes of landscape structure,transformation characteristics,fragmentation and diversity characteristics,etc. The results showed that：（ 1） Grassland was the main landscape type in the whole Tibetan Autonomous Prefecture of Hainan region. The cultivated land,forest land,artificial land and unused land had increased,and grassland,water area had reduced during 2000 to 2011.The number of landscape type plaque totally increased 1155 in the recent 11 years. All kinds of landscape types had great difference on the spatial distribution.（ 2） Landscape transformation area reached 2022. 13km^2,and the grassland transformed the most,and the artificial land transformed the least in Tibetan Autonomous Prefecture of Hainan during 2000 to 2011. There was a conclusion that grassland had the highest contribution rate on the transformation of various types of landscape during 2000 to 2011.（ 3） Respectively from the view of patch types and landscape scale,the landscape disturbance degree,the fragmentation degree and the degree of the landscape spatial heterogeneity were increased,while the degree of reunion was reduced,and diversity and dominance index were also significantly reduced in Tibetan Autonomous Prefecture of Hainan during 2000 to2011.
出处
《高原山地气象研究》
2015年第3期88-95,共8页
Plateau and Mountain Meteorology Research
基金
青海省科技厅科技促进新农村计划(海南州草地资源空间分布调查与畜牧业生产布局研究)
关键词
青海省海南州
景观格局
变化特征
景观转化
Hainan Prefecture of Qinghai
landscape pattern
variation
landscape transformation
