| 毛乌素沙地南缘湿地/沙化土地动态变化分析 |
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| 引用本文： | 王晓青,杨联安,姜英,王娟敏.毛乌素沙地南缘湿地/沙化土地动态变化分析[J].西北林学院学报,2007,22(4):73-77. |
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| 作者姓名： | 王晓青 杨联安 姜英 王娟敏 |
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| 作者单位： | 国家林业局,西北林业调查规划设计院,西安,710048; 西北大学,城市与资源学系,西安,710069 |
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| 基金项目： | 教育部霍英东教育基金会高等院校青年教师基金 |
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| 摘 要： | 应用遥感和地理信息等技术手段,获取毛乌素沙地南缘1999年和2004年湿地和沙化土地时空分布和动态变化数据,并对湿地和沙化土地分布特征和动态变化原因进行了分析.结果表明,5 a来研究区域湿地主要分布在河流沿岸并呈现增加态势,沙化土地主要分布在研究区域北部呈条带状分布且总体上呈逆转趋势.湿地的增加和沙化土地逆转说明生态建设取得了可喜的成绩,但生态建设任重道远.
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| 关 键 词： | 湿地 沙化土地 动态变化 分析 |
| 文章编号： | 1001-7461（2007）04-0073-05 |
| 收稿时间： | 2006-06-22 |
| 修稿时间： | 2006-06-222006-09-07 |
Dynamic Changes of Wetlands and Sandification in the South of Musu Sandy Land |
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| WANG Xiao-qing,YANG Lia-nan,JIANG Ying,WANG Juan-min.Dynamic Changes of Wetlands and Sandification in the South of Musu Sandy Land[J].Journal of Northwest Forestry University,2007,22(4):73-77. |
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| Authors: | WANG Xiao-qing YANG Lia-nan JIANG Ying WANG Juan-min |
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| Abstract: | Using the technology of RS and GIS,the data of spatial temporal distribution and dynamic changes of wetlands and sandification in the south of Musu sandy land in 1999 and 2004 were obtained.The reasons resulted in the characteristics of distribution and the reasonal dynamic changes were analyzed.The results showed that the wetlands mainly distributed along the river banks with increasing trend,but the sandifieation distributed in the north of studying area with decreasing trend situation in the past 5 years,indicating that delightiful achievements had been obtained in the eeo-construction of this region.However eco-consttmction in desert area has still a long way to go. |
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| Keywords: | wetlands sandification dynamic changing analysis |
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