摘要
随着社会工业化进程的加快,经济发展同生态环境之间的矛盾越来越突出,因此开展典型地区生态环境遥感动态监测分析是认识全国土地利用变化现状的重要途径。在遥感和GIS技术支持下,通过建立广安市土地利用数据库,对广安市2000-2007年间土地利用/覆盖类型的动态度变化和转移变化进行了分析,确定了土地利用/覆盖类型的初始状态矩阵和转移概率矩阵,并且用马尔科夫模型预测了该区2014-2021年间土地利用/覆盖的演变趋势。结果表明:该区域耕地、草地的面积逐年减少,林地的面积增长速度较快。虽然广安市退耕还林工程取得了显著成绩,但却造成了耕地和草地的剧烈减少,不利于生态环境的平衡发展,因此应该保护耕地和草地,注重经济和环境的可持续发展。
As society to speed up the process of industrialization, the contradiction between economic development and ecological environment become more and more prominent, so it is an important way that carry out the typical area ecological environment remote sensing dynamic monitor analysis to recognize the present situation of the nation land utilization changes. Based on the remote sensing and GIS technology, this paper analyzed land use/cover dynamic degree changes and transfer changes of the region between 2000-2007 through establishing the Guangan city land utilization database, and established the land use/cover of the initial state matrix and transition probability matrix, and with Markov model to predict the area between 2014-2021 land use/cover the evolution of trends. The results show that:the farming and the lawn area of this region reduces year by year, the rate of rise of the forest land area is quick. Although the Guangan returning farmland to forest project has made the remarkable progress, but has actually created the farming and the lawn fierce reduction, does not favor the ecological environment the balanced development, therefore should protect the farming and the lawn, emphasize the economy and environment sustainable development.
出处
《地理空间信息》
2011年第6期96-98,2,共3页
Geospatial Information
基金
国家自然科学基金资助项目(41071265)
高等学校博士学科点专项科研基金课题资助项目(20105122110006)
