干旱区生态环境知识资源中心(Arid): 基于MOD 09GA数据的新疆草地生长状况遥感监测研究

Arid

	基于MOD 09GA数据的新疆草地生长状况遥感监测研究
其他题名	Monitoring of grassland herbage accumulation by remote sensing using MOD 09GA data in Xinjiang
	荀其蕾 1; 董乙强 1; 安沙舟1 ; 闫凯 2
来源期刊	草业学报
ISSN	1004-5759
出版年	2018
卷号	27 期号:4 页码:10-26
中文摘要	以新疆全区草地为研究对象,利用2010-2014年天然草地地上生物量实测数据(above-ground biomass, AGB)和EOS Terra MODIS每日地表反射率产品MOD 09GA,采用空间分析方法分别计算了生长季(4-10月)草地NDVI_(max),MSAVI_(max),PVI_(max),NDVI_(mean),MSAVI_(mean)和PVI_(mean)6种植被指数,探讨了NDVI_(max),MSAVI_(max),PVI_(max)与草地地上生物量之间的遥感反演模型,分析了新疆草地生长季多年NDVI_(mean),MSAVI_(mean)和PVI_(mean)空间分布特征和空间变化特征。根据所选的最优模型反演了新疆2005-2014年的草地地上生物量,统计分析了地上生物量的空间变化特征。结果表明,新疆草地2010-2014年NDVI_(mean),MSAVI_(mean)和PVI_(mean)总体上均具有由北向南、由西向东逐渐递减的空间分布特点,不同草地类型的生物量差异显著。2005-2014年低地草甸类的生物量最高,高寒荒漠类最低。统计分析2010-2014年的NDVI_(mean),MSAVI_(mean)和PVI_(mean)变化趋势发现,北疆有28%以上草地处于改善状态,南疆草地则以稳定为主;全疆14个地、州、市草地以稳定为主,处于稳定比重的草地大于40%,博尔塔拉蒙古自治州、哈密地区、塔城地区、巴音郭楞蒙古自治州草地处于改善状态的草地超过15%,阿勒泰地区、博尔塔拉蒙古自治州、伊犁哈萨克自治州直属、克拉玛依市、昌吉回族自治州、克孜勒苏柯尔克孜自治州、阿克苏地区和乌鲁木齐市轻度改善的草地比重大于10%;除吐鲁番市和乌鲁木齐市外,其余地、州、市恶化草地比重低于10%,全疆草地整体改善以稳定为主,总体趋于良好。
英文摘要	This study focuses on grassland in the Xinjiang Uygur Autonomous Region;in situ measurements of above ground biomass(AGB)and its spatial distribution were recorded during the growing seasons from 2010 to 2014.Regression models using AGB data and the corresponding daily surface reflectance obtained remotely from EOS Terra MODIS were established.Spatial analysis was used to calculate six vegetation indices (NDVI_(max),MSAVI_(max),PVI_(max),NDVI_(mean),MSAVI_(mean)and PVI_(mean))using MOD 09GA data and the accuracy of the inversion models analyzed.The spatial distribution and spatial variation of the NDVI_(mean),MSAVI_(mean)and PVI_(mean)values from 2010to 2014were also analyzed.Above-ground grassland biomass and its spatial distribution from 2005to 2014were estimated.It was found that NDVI_(mean),MSAVI_(mean)and PVI_(mean)values gradually decreased from South to North and from West to East,and different grassland types have characteristic biomass differences.The biomass of azonal lowland meadow was highest and alpine desert type lowest among the grassland types included in the study.The trend of NDVI_(mean),MSAVI_(mean)and PVI_(mean)value from 2010to 2014indicates that over 28%of regions in North Xinjiang could be categorized as showingImprovement’,whereas in South Xinjiang these indicators were stable.The grassland of 14prefectures in Xinjiang,representing 40%of the region,was also stable.The grassland of the Bortala Mongol Autonomous Prefecture,Kumul Prefecture, Tacheng Prefecture and Bayingolin Mongol Autonomous Prefecture showed improvement of over 15%.Over 10%of the grassland in Altary Prefecture,Bortala Mongol Autonomous Prefecture,Ili Kazakh Autonomous Prefecture,Karamay City,Changji Hui Autonomous Prefecture,Kizilsu Kirghiz Autonomous Prefecture,Aksu Prefecture and Urumqi City can be categorized as showingMild Improved’.The overall trend for grassland vegetation in Xinjiang is positive.
中文关键词	新疆 ; 草地地上生物量 ; 植被指数 ; 遥感监测
英文关键词	Xinjiang grassland above-ground biomass vegetable indices remote sensing monitoring
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6216178
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237351
作者单位	1.新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830000, 中国; 2.新疆维吾尔自治区草原总站, 乌鲁木齐, 新疆 830000, 中国
推荐引用方式 GB/T 7714	荀其蕾,董乙强,安沙舟,等. 基于MOD 09GA数据的新疆草地生长状况遥感监测研究[J]. 新疆农业大学,2018,27(4):10-26.
APA	荀其蕾,董乙强,安沙舟,&闫凯.(2018).基于MOD 09GA数据的新疆草地生长状况遥感监测研究.草业学报,27(4),10-26.
MLA	荀其蕾,et al."基于MOD 09GA数据的新疆草地生长状况遥感监测研究".草业学报 27.4(2018):10-26.