Spatial and temporal variations of NDVI can not only reflect the changing trend of the ecological environment,but also reveal the recovery situation and degeneration of regional vegetation.According to the data of time series,which were GIMMS NDVI from 1981 to 2003 and SPOT VGT NDVI from year 1998 to 2010,this paper analyzed the spatial and temporal variations of ecological function area and NDVI of different vegetation types of northern Xinjiang in recent 30 years,with the maximum synthesis method of NDVI and the trend analysis method.The results showed as follows(1)From the perspective of functional areas in Northern Xinjiang,the average value of NDVI grew slowly and changed with the periodic fluctuation during the period from 1981 to 2003,while as a turning period in 2002,the improvement of the whole vegetation enhanced continuously.(2)From the perspective of different ecological function districts,the vegetation of ecological function areas in Yili River Valley,the northern slope of Tianshan Mountains and the south of Altai Mountains were obviously improved during the period from 1981 to 2003,while the vegetation of desert ecological area and eastern region of the Junggar basin were degenerated mildly.The vegetation in most parts of northern Xinjiang restored significantly during the period from 1998 to 2010,and the vegetation improvement reached the extremely significant level in the Yili River Valley and the plain oasis area in the middle of the northern slope of Tianshan Mountains.(3)The improvement or degradation trends of vegetation in northern Xinjiang may be related to the implementation of ecological construction and the overall regional climate change during the same period.
WANG Jiping
,
GUO Zhongjun
,
HUANG jihong
,
ZANG Runguo
,
LIU Xuan
. Characteristics of Spatio-temporal Variation of NDVI in Different Ecological Function Zones in North Xinjiang in Recent 30 Years[J]. Forest and Grassland Resources Research, 2015
, 0(6)
: 64
-70
.
DOI: 10.13466/j.cnki.lyzygl.2015.06.013
[1]Pettorelli N,Vik J O,Mysterud A,et al.Using the satellite-derived NDVI to assess ecological responses to environmental change [J].Trends in Ecology and Evolution,2005,20(9):503-510.
[2]张晓萍,高照良,张橹,等.不同时间尺度径流对植被变化的响应[J].中国水土保持科学,2007,5(4):94-100.
[3]李珍存,马明国,张峰,等.1982—2003 年中国西北地区植被动态变化格局分析[J].遥感技术与应用,2006,21(4):332-337.
[4]臧润国,井学辉,刘华,等.北疆森林植被生态特征[M].北京:中国现代教育出版社,2011.
[5]武正丽,贾文雄,刘亚荣,等.近10a来祁连山植被覆盖变化研究[J].干旱区研究,2014,31 (1):80-87.
[6]Wardlow B D,Egbert S L,Kastens J H.Analysis of time-series MODIS 250 m vegetation index data for crop classification in the US Central Great Plain[J].Remote Sensing of Environment,2007,108(3):290-310.
[7]顾娟,李新,黄春林.基于时序MODIS NDVI的黑河流域土地覆盖分类研究[J].地理科学进展,2010,25(3):317-326.
[8]魏小琴,巴特尔·巴克,吴燕锋,等.2000—2013年阿勒泰地区植被覆盖变化研究[J].林业资源管理,2015(3):53-58.
[9]昝国盛,孙涛.呼伦贝尔草原植被覆盖变化趋势研究[J].林业资源管理,2011(1):44-48.
[10]贾明明,任春颖,刘殿伟,等.基于环境星与MODIS时序数据的面向对象森林植被分类[J].生态学报,2014,34(24):7167-7174.
[11]侯学会,牛铮,高帅,等.基于SPOT-VGT NDVI时间序列的农牧交错带植被物候监测[J].农业工程学报,2013,29(1):142-150.
[12]张峰,吴炳方,刘成林,等.利用时序植被指数监测作物物候的方法研究[J].农业工程学报,2004,20(1):155-159.
[13]蒙继华,吴炳方,李强子.全国农作物叶面积指数遥感估算方法[J].农业工程学报,2007,23(2):160-167.
[14]杨萍,刘雪华.基于SPOT-VGTNDVI的玛纳斯县植被覆盖变化分析[J].干旱区资源与环境,2015,29(2):43-48.
[15]李秀花,师庆东,郭娟,等.中国西北干旱区1981—2001年NDV时气候变化的响应分析[J].干旱区资源与环境,2009,23(2):11-16.
[16]郭铌,朱燕君,王介民,等.22年来西北不同类型植被NDVI变化与气候因子的关系[J].植物生态学报,2008,32(2):319-327.
[17]闫俊杰,乔木,周宏飞,等.基于MODIS/NDVI的新疆伊犁河谷植被变化[J].干旱区地理,2013,36(3):512-519.
[18]赵玲,杨青,安沙舟.天山山区植被类型改变对新疆气候影响的模拟分析[J].草业学报,2014,23 (3):51-61.
[19]寒区旱区科学数据中心[DB/OL].(2015-10-20)[2013-10-24].http://westdc.westgis.ac.cn/.
[20]中国生态系统与生态功能区划专题数据库[DB/OL].(2015-10-20)[2011-10-19].http://www.ecosystem.csdb.cn/.
