中国芒草、龙须草草丛植被地理分布及其斑块特征
Vegetation Geographical Distribution and Patch Characteristics of Miscanthus Sinensis, Eulaliopsis Binata Community in China

应用ArcGIS地理信息系统软件，对科学出版社2001年发行的《中国植被图集(1:1000000)》中的芒草、龙须草草丛植被数据进行矢量化处理，得到芒草、龙须草草丛植被的斑块信息，并以此绘制芒草、龙须草草丛植被地理空间分布图，对我国芒草、龙须草草丛植被的主要分布区域及斑块特征进行研究。结果显示：我国芒草、龙须草草丛主要分布在陕西，少量分布于河南、广西、贵州三地，芒草、龙须草草丛植被总斑块数为109个，总面积为5146.87 km²，其中芒草、龙须草草丛斑块数为106个，面积为5030.89 km²，芒草、龙须草草丛 + 龙须草草丛斑块数为3个，面积为115.98 km²，整体来看各芒草、龙须草草丛群系的斑块形状相对规则。芒草、龙须草草丛斑块面积大小差异较大，且景观离散程度大。芒草、龙须草草丛 + 龙须草草丛的斑块破碎化程度较高，且受人类活动影响较大。
Applying ArcGIS GIS software, we vectorized the data of mangrove and longisongrass tussock vegetation in “China Vegetation Atlas (1:1000000)” issued by Science Press in 2001, obtained the patch information of Miscanthus sinensis, Eulaliopsis binata community vegetation, and used it to draw the geospatial distribution maps of Miscanthus sinensis, Eulaliopsis binata community vegetation, and studied the main distribution areas and patch characteristics of China’s Miscanthus sinensis, Eulaliopsis binata community vegetation. The results showed that China’s Miscanthus sinensis, Eulaliopsis binata community were mainly distributed in Shaanxi, and a small amount of them were distributed in Henan, Guangxi and Guizhou. The total number of Miscanthus sinensis, Eulaliopsis binata community vegetation patches is 109, with a total area of 5146.87 km². The number of Miscanthus sinensis, Eulaliopsis binata community vegetation patches is 106, with an area of 5030.89 km², and the number of Miscanthus sinensis, Eulaliopsis binata community + Eulaliopsis binata community vegetation patches is 3, with an area of 115.98 km². Overall, the shape of patches of each Miscanthus sinensis, Eulaliopsis binata community group system is relatively regular. The size of the patches of Miscanthus sinensis, Eulaliopsis binata community varies greatly in size and the degree of landscape dispersion is large, and the patches of Miscanthus sinensis. Eulaliopsis binata community + Eulaliopsis binata community have a higher degree of fragmentation and are more affected by human activities.