信阳市平桥区景观生态的空间格局分析

通过对信阳市平桥区景观生态的空间格局与自然环境和人类活动的关系进行分析，结果表明：1．平桥区具有较为复杂的景观异质性，特殊的自然环境与人类长期的强烈干扰是其形成的根源；2．土地资源开发程度越高的区域，景观异质性越强，破碎程度越大，优势度和分离度越小；3．研究区的西部和中部耕地已成为主要景观类型，东部除耕地之外，林地也是其主要的景观类型之一．但该区荒地在景观中还占有重要地位，这预示着人类对该区土地利用的不合理性和对生态环境破坏的加剧．

The spatial pattern analysis of landscape in the Pingqiao area of Xinyang city

By analyzing the spatial pattern of landscape and the relationship between the spatial pattern and human activity and natural evironment,we obtained that :1.There exists a highly landscape heterogeneity in the Pingqiao area because this area is influenced heavily by the special natural environment and human disturbance;2.The highly developed area has a complex landscape heterogeneity and nomegenity while the landscape dominance and fragmentation being less ;3.The farming land is the main landscape in the western and middle regions of the area,the farming land and forest land are also the main landscape in the eastern region,but the wasteland took an important place in the area .These sign the aggravation of destroying the main landscape by human,unreasonable use of land ,and destruction of ecological environment.