绵阳市梓潼县土地利用景观格局变化分析

On Changes of Landscape Patterns of Land Use at Zitong County

以梓潼县2004年土地利用变更调查图和2009年的第二次土地调查成果图为基础,采用斑块数、类斑块面积、多样性指数等景观格局分析指数和土地利用转移矩阵分析近五年的土地利用景观格局的变化。结果表明:从2004年至2009年,区域景观受人类的干扰强烈,斑块破碎;受宏观生态保护政策、中观县域土地政策和微观市场经济效益等多重因素的影响,作为景观基质的水田、旱地、有林地、其他林地之间的转移量最大,因此在土地利用规划中要注意协调好各种层面的驱动因子,以保障土地利用的可持续发展。

This paper is to introduce the ;recent five - year changes of landscape patterns of land use at Zitong County, Mianyang, on the basis of survey of changes of land use of 2004, and the result of the second land survey of 2009, by analyzing the indexes of landscape, such as patch number, patch size, and diversity, and the transition matrix of land use. The result shows, from 2004 to 2009, regional landscape patches were broken by human activities, and owing to macro -eco- protection policies, land agricultural policies and micro -market economic impact and so forth, the maximum amount of land transfer is between the landscape matrix including the paddy field, dry land, forest land and other wooded land. Therefore, in order to ensure the sustainable development of land use, great attentions should be paid and coordination of driving factors of land use should be conducted by governments at all levels.