| 文安驿流域植被覆盖度时空分异及其与地貌因子关系研究 |
| |
| 引用本文： | 程圣东,李占斌,鲁克新,李鹏,张林红.文安驿流域植被覆盖度时空分异及其与地貌因子关系研究[J].西安理工大学学报,2011,27(2). |
| |
| 作者姓名： | 程圣东 李占斌 鲁克新 李鹏 张林红 |
| |
| 作者单位： | 1. 西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安,710048
2. 西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048;黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100 |
| |
| 基金项目： | 国家自然科学基金资助项目(40971161,41071182) |
| |
| 摘 要： | 从流域尺度对黄土高原地区植被覆盖度状况进行动态监测,定量分析其与地貌间因子的关系。以文安驿流域为研究区,利用多时相遥感数据测算植被覆盖度,综合运用GIS空间分析和数字地形分析方法,对研究区植被覆盖度时空分异规律及其与地貌因子的关系进行分析。结果表明:近十年来文安驿流域植被覆盖度总体呈上升趋势,2007年比2002年恢复的幅度更大;流域植被覆盖度随海拔高度的增加均呈下降趋势;植被覆盖度随着坡度的增大而减少,相对1999年,2007年在大于25°坡度范围的植被覆盖度比2002年的增幅大;流域植被覆盖度北坡相对较高,南坡相对较低,各个坡向的植被覆盖度大小呈现一致性规律。
|
| 关 键 词： | 黄土高原 流域植被覆盖度 地貌因子 时空分异 遥感和地理信息系统技术 |
Spatio-Temporal Variations in Vegetation Coverage and Correlation with Geomorphologic Factors in Wenanyi Watershed |
| |
| CHENG Shengdong,LI Zhanbin,LU Kexin,LI Peng,ZHANG Linhong.Spatio-Temporal Variations in Vegetation Coverage and Correlation with Geomorphologic Factors in Wenanyi Watershed[J].Journal of Xi'an University of Technology,2011,27(2). |
| |
| Authors: | CHENG Shengdong LI Zhanbin LU Kexin LI Peng ZHANG Linhong |
| |
| Institution: | CHENG Shengdong1,LI Zhanbin1,2,LU Kexin1,LI Peng1,ZHANG Linhong1(1.Key laboratory of Northwest Water Resources and Environment Ecology of MOE,Xi'an University of Technology,Xi'an 710048,China,2.State Key laboratory of Soil Erosion and Dry Land Farming on Loess Plateau,Yangling 712100,China) |
| |
| Abstract: | The factor relationship of the vegetation coverage on the Loess Plateau is monitored dynamically,whose coupling relationship between the variation of vegetation coverage and watershed geomorphological factors is also analyzed in a quantitative way in watershed scale.With Wenanyi watershed as the research area,the calculated watershed vegetation coverage from multi-temporal remote sensing data and the spacial analysis and GIS digital to pographical analysis method are used to analyse the coupling relationshi... |
| |
| Keywords: | Loess Plateau watershed vegetation coverage geomorphologic indicators spatio-temporal differences GIS and RS |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
