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| 四子王旗景观格局演变与沙化土地动态变化分析 | |
| 引用本文： | 孙景梅,杨联安,周欢水,廖雅萍. 四子王旗景观格局演变与沙化土地动态变化分析[J]. 西北林学院学报, 2012, 27(3): 160-166,192 |
| 作者姓名： | 孙景梅 杨联安 周欢水 廖雅萍 |
| 作者单位： | 1. 国家林业局西北林业调查规划设计院,陕西西安,710048 2. 西北大学城市与资源学系,陕西西安,710069 3. 国家林业局调查规划设计院,北京,100714 |
| 基金项目： | 霍英东教育基金会第九届高等院校青年教师基金优选课题(94005) |
| 摘 要： | 利用RS和GIS的空间分析技术,通过提取分析四子王旗两期遥感影像数据,结合现地调查,对区域景观格局演变和沙化土地动态变化进行分析。结果表明:从2003年到2008年5a间,景观类型和沙化土地类型发生了较为明显的变化,主要表现在:林地景观面积明显增加,耕地、草地和未利用地明显减少,林地面积增加了41 361hm2,耕地、草地和未利用地面积分别减少了14 561、9 427hm2和19 307hm2;沙化土地5a间减少了664hm2,其中半固定沙地减少了261hm2,固定沙地增加了322hm2,露沙地减少了512hm2,沙化耕地减少了153hm2,风蚀劣地减少了60hm2。分析认为近年来实施的京津风沙源治理工程是区域景观演变和沙化土地动态变化的主要因素。 |
| 关 键 词： | 景观演变 沙化土地 动态变化 分析 |
Changes of Landscape Patterns and Sandy Lands of Siziwang Banner |
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| SUN Jing-mei , YANG Lian-an , ZHOU Huan-shui , LIAO Ya-ping. Changes of Landscape Patterns and Sandy Lands of Siziwang Banner[J]. Journal of Northwest Forestry University, 2012, 27(3): 160-166,192 | |
| Authors: | SUN Jing-mei YANG Lian-an ZHOU Huan-shui LIAO Ya-ping |
| Affiliation: | 1.Northwest Institute of Forest Inventory,Planning and Design,State Forestry Administration,Xi’an,Shaanxi 710048,China; 2.Department of Urban and Resources Science,Northwest University,Xi’an,Shaanxi 710069,China; 3.Academy of Forest Inventory and Planning,State Forestry Administration,Beijing 100714,China) |
| Abstract: | Evolution of regional landscape patterns and dynamic changes of sandy lands in Siziwang Banner,Inner Mongolia,China,were analyzed by using RS and GIS spatial analysis technology to Abstract and analyze remote sensing images of two periods.The results showed that the landscape types and sandy land types changed remarkably during 5 years(from 2003 to 2008).The area of forest landscape increased,the area of cropland,grassland and unused land decreased.The area of forest lands increased 41 361 hm2,the areas of cropland,grassland and unused land decreased 14 561 hm2,9 427 hm2 and 19 307 hm2.The sandy lands reduced 664 hm2 during 5 years,in which semi-fixed sandy lands decreased 261 hm2,fixed sandy lands increased 322 hm2,sandy patch lands decreased 512 hm2,sandy croplands decreased 153 hm2,and aeolian barren lands reduced 60 hm2.The implementation of "Wind and Sand Storm Control Project around Beijing and Tianjing" was considered the key factor of the regional landscape and sandy lands changes. |
| Keywords: | landscape pattern change sandy land dynamic change analysis |
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