风沙化土地典型区滑县土地利用时空变化研究

Research on Land Use Spatio-temporal Change of the Typical Region of Windy-sand Land in Hua County

运用3S技术,分析了风沙化土地典型区滑县1979—2009年的土地利用数量变化特征,结果显示:该区的土地利用类型变化显著。耕地、水域和未利用地面积持续减少,林地和建设用地面积呈现不断增加的态势;风沙化土地利用对研究区各土地类型之间的平衡起了重要的作用。这集中反映了人口素质提高、环保意识增强、人口增长和经济建设需求对土地利用变化的积极影响,同时宜采取有效措施减缓或调控耕地持续减少的趋势。

The land use quantity change character of the typical region of windy-sand land in Hua County dur- ing 1979 -2009 was analyzed by means of 3S technique. The results showed that land use type was changed evi- dently in the region. The trend of land use change is as follows： the areas of cultivated land, waters and unused land decreased continually, while the areas of forest land and construction land exhibited an increase trend. Use of the windy-sand land plays an important role in balancing diversified land types in the study region. The trend of land use change reflected the positive effect of the promotion in population quality, the enhancement in environmen- tal protection consciousness, population increase and the land demand in economic construction on land use change. At the same time, some effective measures should be taken to alleviate or regulate the declining trend of the cultivated land .