%0 Journal Article %T 中国羊草草甸草原植被地理分布及其斑块特征
Vegetation Geographic Distribution and Patch Characteristics of Leymus chinensis Meadow Steppe in China %A 曹雨晴 %J World Journal of Forestry %P 185-191 %@ 2169-2440 %D 2025 %I Hans Publishing %R 10.12677/wjf.2025.142022 %X 本文以科学出版社2001年出版的《中国植被图集(1:1000000)》中羊草草甸草原部分为源数据,应用ArcGIS 10.8软件处理转化为图斑数据,绘制出羊草草甸草原植被的地理空间分布图,分析羊草草甸草原植被的地理空间分布格局,并计算各群系组的斑块特征,对各群系组进行分析和评价。结果表明:羊草草甸草原植被在内蒙古、黑龙江、吉林、辽宁四省分布,总面积为33855.50 km2,在内蒙古的分布面积最大,在辽宁分布面积最小,羊草、杂类草草甸草原分布最广,羊草、杂类草草甸草原 + 大针茅草原分布面积最小。各植被类型斑块分布极不均衡,大斑块较少,小斑块众多,整体上景观破碎化程度高,受干扰程度高,其中羊草、杂类草草甸草原最为严重。整体上羊草草甸草原斑块形状不规则,植被景观异质性较大。
Based on the source data of Leymus chinensis meadow steppe in the Vegetation Atlas of China (1:100,000) published by Science Press in 2001, this paper applied ArcGIS 10.8 software to process and transform the data into map spot data, drew the geographic spatial distribution map of Leymus chinensis meadow steppe vegetation, and analyzed the geographic spatial distribution pattern of Leymus Chinensis meadow steppe vegetation. The patch characteristics of each formation group were calculated, and each formation group was analyzed and evaluated. The results showed that the vegetation of Leymus chinensis meadow steppe was distributed in Inner Mongolia, Heilongjiang, Jilin and Liaoning, with a total area of 33855.50 km2, the largest distribution area in Inner Mongolia and the smallest distribution area in Liaoning, the widest distribution area of Leymus chinensis and miscellaneous grass meadow steppe, and the smallest distribution area of Leymus chinensis and miscellaneous grass meadow steppe + Stipa chinensis. The patch distribution of various vegetation types is extremely uneven, with few large patches and many small patches. On the whole, the landscape fragmentation degree is high, and the disturbance degree is high, among which the meadow steppe of Leymus chinensis and miscellaneous grass is the most serious. On the whole, the patch shape of Leymus chinensis meadow steppe is irregular, and the vegetation landscape heterogeneity is great. %K 羊草, %K 草甸草原, %K 地理分布, %K 斑块特征, %K 景观生态学
Leymus chinensis %K Meadow Steppe %K Geographical Distribution %K Patch Characteristics %K Landscape Ecology %U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=110441