摘要
以2000年的ETM遥感影像和2009年中巴资源卫星影像为主要数据源,采用GIS方法分析三江平原北部地区土地利用变化情况,旨在为该区域水土资源优化配置和农业可持续发展提供依据。垦殖率由2000年的50.56%攀升至2009年的67.26%。主要结论如下:耕地特别是水田大幅增加、城乡工矿用地小幅增加、其他各地类特别是未利用地减少;沼泽地被人为排干(变为草地)再垦殖(变为耕地)以及毁林开荒、滩地开荒是最主要的土地利用变化形式;各地类变化具有显著的区域差异,东部地区以未利用地(主要是沼泽地)开荒垦殖、耕地及城乡工矿用地快速增加为显著特征,西北部地区以毁林开荒、草地开荒、滩涂开荒为显著特征,西南地区以全面开荒为特征。
This paper takes the ETM remote sensing images in 2000and CBERS images in 2009as the main data source to analyze land use changes in the northof Sanjiang Plain between 2000and 2009with GIS.The aim of this paper is to provide a basis for optimizing the allocation of land and water resources and sustainable agricultural development in the region.The main conclusions are as follows ： Cultivated land,especially paddy fields increases substantially,while residential and mines land increases slightly,the other kinds of unused land have decreased.Reclamation rate increased from 50.56%in 2000to 67.26%in 2009.There were significant regional differences in the process of land change.Unused land（mainly wetlands） was cultivated and residential and mine land increased rapidly in the eastern region.Forestland,grassland and beach land were cultivated into farmland in the northwest.There was comprehensive land reclamation in the southwest.
出处
《中国农村水利水电》
北大核心
2012年第2期72-74,77,共4页
China Rural Water and Hydropower
基金
黑龙江省教育厅自然科学项目(11541026)
东北农业大学科学研究基金(2009)
关键词
三江平原
土地利用
水土资源
农业开发
Sanjiang Plain
land use
water and land resources
agricultural development
