地球信息科学学报 ›› 2016, Vol. 18 ›› Issue (12): 1707-1716.doi: 10.3724/SP.J.1047.2016.01707
孙庆龄1,2(), 李宝林1,2,4,*(
), 许丽丽1,2, 张涛1,2, 葛劲松3, 李飞3
收稿日期:
2015-12-11
修回日期:
2016-03-27
出版日期:
2016-12-27
发布日期:
2016-12-20
通讯作者:
李宝林
E-mail:fuqiao_sun@163.com;libl@lreis.ac.cn
作者简介:
作者简介:孙庆龄(1991- ),女,安徽阜阳人,博士生,研究方向为生态环境遥感。E-mail:
基金资助:
SUN Qingling1,2(), LI Baolin1,2,4,*(
), XU Lili1,2, ZHANG Tao1,2, GE Jinsong3, LI Fei3
Received:
2015-12-11
Revised:
2016-03-27
Online:
2016-12-27
Published:
2016-12-20
Contact:
LI Baolin
E-mail:fuqiao_sun@163.com;libl@lreis.ac.cn
摘要:
基于2000-2013年三江源MODIS NDVI数据,本文系统地分析了三江源植被生长季累计NDVI的时空变化特征,并结合三江源生态保护与建设工程实施的相关统计数据,探讨了人类活动对三江源植被变化的影响,最后通过气候因子与生长季累计NDVI的相关性分析,揭示了影响三江源不同地区植被变化的主要气候限制因素。结果表明,2000-2013年三江源植被NDVI整体上呈增加趋势,NDVI明显增加的区域面积比例达17.84%,主要分布于研究区的西部和北部;明显减少的区域仅占0.78%,多零星分布于研究区中部;NDVI变化稳定或没有显著变化趋势的区域面积比例为59.64%,主要位于研究区东部和南部。三江源生态保护与建设工程的实施虽然促进了植被恢复,但对区域植被整体变化的影响有限,研究时段内区域植被整体好转主要受气候因素控制。西部长江源区的植被生长主要受气温影响,东北部黄河源区主要受降水制约,南部澜沧江源区降水和气温的限制性均不明显。
孙庆龄, 李宝林, 许丽丽, 张涛, 葛劲松, 李飞. 2000-2013年三江源植被NDVI变化趋势及影响因素分析[J]. 地球信息科学学报, 2016, 18(12): 1707-1716.DOI:10.3724/SP.J.1047.2016.01707
SUN Qingling,LI Baolin,XU Lili,ZHANG Tao,GE Jinsong,LI Fei. Analysis of NDVI Change Trend and Its Impact Factors in the Three-River HeadwaterRegion from 2000 to 2013[J]. Journal of Geo-information Science, 2016, 18(12): 1707-1716.DOI:10.3724/SP.J.1047.2016.01707
表3
2000-2013年间三江源实施的生态保护工程概况"
项目类型 | 实施时段 | 计划实施面积/km2 | 实际实施面积/km2 |
---|---|---|---|
退牧还草 | 2003-2012 | 6.44 | 5.65 |
退耕还林(草) | 2004-2012 | 0.01 | 0.01 |
水土保持 | 2005-2012 | 500.00 | 500.00 |
封山育林 | 2005-2012 | 0.30 | 0.24 |
沙漠化治理 | 2005-2012 | 0.04 | 0.04 |
湿地保护 | 2005-2012 | 0.11 | 0.01 |
黑土滩治理 | 2005-2012 | 0.37 | 0.23 |
鼠害防治 | 2005-2012 | 2.09 | 7.83 |
灌溉饲草基地 | 2009-2012 | 0.00 | 0.00 |
总计 | 509.36 | 514.01 |
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