|
|||||
|
|
| 绿洲-荒漠交错带土地利用/覆盖时空变化研究 | |
| 引用本文： | 丁建丽,张 滢,塔西甫拉提·特依拜.绿洲-荒漠交错带土地利用/覆盖时空变化研究[J].环境科学研究,2006,19(6):100-105. |
| 作者姓名： | 丁建丽 张 滢 塔西甫拉提·特依拜 |
| 作者单位： | 1. 新疆大学,理论经济学博士后流动站,新疆,乌鲁木齐,830046;新疆大学,资源与环境科学学院,绿洲生态教育部重点实验室,新疆,乌鲁木齐,830046 2. 新疆财经学院,市场系,新疆,乌鲁木齐,830012 3. 新疆大学,资源与环境科学学院,绿洲生态教育部重点实验室,新疆,乌鲁木齐,830046 |
| 基金项目： | 中国科学院"西部之光"人才培养计划 , 新疆重点实验室基金 , 新疆高等学校科研项目 , 新疆大学校科研和教改项目 |
| 摘 要： | 选择新疆于田县为研究区,从导致区域生态环境问题的主要驱动因素--土地利用/覆盖变化(LUCC)为出发点,以遥感技术为依托,对3个时相的陆地卫星数据及相关统计资料进行了处理,利用得到的土地覆盖差值图像,定量分析评价了该区域1979-2001年的时空变化趋势及其主要驱动机制.结果表明:造成绿洲-荒漠交错带生态环境变化的原因主要是绿洲人口数量的剧增以及过渡樵采等,不合理的水土资源利用导致绿洲荒漠化和交错带地下水位下降.绿洲-荒漠交错带普遍存在植被覆盖度大面积下降现象,原先连续的过渡带已有转化成生态裂谷的趋势,绿洲的屏障作用进一步降低.在绿洲外围风沙前沿地带,地表裸露、松散,在起沙风的作用下,流沙侵入农田,进一步恶化了本已很贫瘠而又脆弱的农业生态环境.因此,现阶段绿洲外围生态环境较为恶劣,整体处于不稳定状况. |
| 关 键 词： | 绿洲-荒漠交错带 土地利用/覆盖变化 时空变化 干旱区 |
| 文章编号： | 1001-6929（2006）06-0100-06 |
| 收稿时间： | 2006-03-23 |
| 修稿时间： | 2006-03-23 |
Study on the Change of Spatial-Temporal LUCC in Oasis-Desert Ecotone |
|
| DING Jian-li,ZHANG Ying and TASHOPLAT Tiyip.Study on the Change of Spatial-Temporal LUCC in Oasis-Desert Ecotone[J].Research of Environmental Sciences,2006,19(6):100-105. | |
| Authors: | DING Jian-li ZHANG Ying and TASHOPLAT Tiyip |
| Affiliation: | 1. Postdoctoral Station of Theoretical Economics, Xinjiang University, Urumqi 830046, China;2 .Key Laboratory of Oasis Ecology of Education Ministry, College of Resources of Environment Science, Xinjiang University, Urumqi;3. Marketing Department of Xinjiang Finance College, Urumqi 830012, China |
| Abstract: | With Yutian Oasis of Xinjiang Autonomous Region as research area and in the view of the main driving forces effecting on regional ecological environment:land use and land cover changes(LUCC),three temporal land satellite data and related statistical information based on remote sensing technology are handled and the changing trend from 1979 to 2001 in the ecotone is quantitatively evaluated using land-cover dynamic change figure.The result shows that the main reasons are the increasing population and over-grazing,etc.Oasis desertification and degrading of ecotone groundwater level are caused by unreasonable water and soil resources utilization.At present,the vegetation cover of oasis-desert ecotone has generally declined on large scale,the original successive transitional belt has transformed into the trend of ecological gap and,as a result,the barrier function has reduced continually.In the outer frontier of oasis,the land surface is bare and loose and,as the result of sandy wind,the mobile sand has intruded farmland and deteriorated poor and fragile agriculture ecological environment.Therefore the present phase of outer oasis ecological environment is in the state of instability. |
| Keywords: | oasis-desert ecotone land use and land cover change(LUCC) spatial and temporal change arid region |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《环境科学研究》浏览原始摘要信息 | |
| 点击此处可从《环境科学研究》下载全文 | |
