河北省土地利用变化图谱特征分析

目的]为了能够充分反映土地利用变化的时空过程。方法]文章基于地学信息图谱理论与方法,运用ArcGIS 9.3软件,以河北省2001年、2007年和2013年3期遥感解译数据为空间数据源合成河北省耕地利用变化模式图谱,以及河北省生态功能用地与耕地、建设用地变化模式的图谱,据此揭示河北省土地利用变化时空特征及分布规律。结果]2001~2013年河北省土地利用变化图谱主要以稳定型为主,主要表现为"耕地-耕地-耕地"。河北省耕地利用变化模式主要以后期变化模式类型主要为"耕地-耕地-草地",面积达到28.876 244万hm~2,主要集中分布在燕山-太行山地以及山前平原区,是整个变化模式中最大的单体变化类型。2001~2013年河北省生态功能用地随着时间的推移,呈现出向耕地以及建设用地转换的趋势,城市化进程的加快,不合理的经济发展必然导致生态环境日益恶化。结论]该文为今后河北省土地资源的合理利用和科学规划提供科学的依据与指导。

ANALYSIS OF THE CHARACTERISTICS OF LAND USE CHANGE IN HEBEI PROVINCE

In order to fully reflect the land use spatio-temporal process changes, based on the map information in Hebei Province and remote sensing data of 2001, 2007 and 2013 periods, this paper constructed the change patterns map of spatial data sources of arable land, the ecological function of land and farmland, and land use pattern in Hebei Province, and revealed the spatial temporal characteristics of land use change and distribution. The results showed that the land use change map was mainly in the stable type and showed cultivated land patterns. The change area from arable land to grassland area was 288 762.44hm2, which mainly distributed in Yanshan-Taihang Mountains and piedmont plain. The ecological function areas began to converse to city urbanization lands. The unreasonable economic development inevitably deteriorated the ecological environment. This paper provided a scientific basis and guidance for the rational utilization and scientific planning of land resources in Hebei province.