摘要
对景观分类理论和方法进行了探索 ,并以毛乌素沙地为研究对象 ,提出了一套适用于农牧交错区沙质荒漠化土地景观分类与制图的方法。由于沙丘分布广泛 ,与地带性植被和土壤的分布相迭加 ,增加了地表景观的破碎程度 ,使农牧交错区沙地的主要景观要素类型在结构上具有复合性。为了更好地描述沙地景观的复合性特征 ,作者提出景观基本结构组分的概念。首先确定景观基本结构组分 ,根据景观基本结构组分的不同组合确定景观要素类型 ;然后在野外调查的基础上 ,通过对遥感数据的解译和判读进行景观要素类型的划分 ;最后在 GIS支持下成图。该方法对我国北方农牧交错区沙质荒漠化土地具有普遍意义。
A set of methodologies for landscape classification and cartography of sandy and desertified land in arid and semi arid areas are suggested. Firstly, the basic pattern elements of landscape are determined and landscape elements classified according to the combination of basic pattern elements. Secondly, the classification of landscape elements is made through field investigation and interpretation of remotely sensed imagery. Finally, with the help of GIS landscape map was completed. This method was applied to the landscape classification and cartography of the Mu Us sandy land using 1∶ 200 000 TM images with results indication universal applicalility to transitional zone farming and grazing areas of north China.
出处
《植物生态学报》
CAS
CSCD
北大核心
2000年第1期52-57,共6页
Chinese Journal of Plant Ecology
基金
国家"九 .五"攻关项目!(批准号 :96-0 17-0 1-0 5 )
国家自然科学基金! (批准号 :3 9990 490 )
中国林业科学院科学技术发
关键词
景观分类
景观制图
沙质荒漠化土地
毛乌素沙地
Landscape classification, Landscape cartography, The basic pattern elements of landscape, Sandy desertified land, The Mu Us sandy land
