[1]潘萌甜,梁俊红*,李佳,等. 内蒙古温带草原NPP时空变化特征分析[J].西北林学院学报,2018,33(1):233-240.[doi:10.3969/j.issn.1001-7461.2018.01.38]
　PAN Meng-tian,LIANG Jun-hong*,LI Jia,et al. Temporal and Spatial Pattern of Temperate Steppe NPP in Inner Mongolia[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(1):233-240.[doi:10.3969/j.issn.1001-7461.2018.01.38]
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 内蒙古温带草原NPP时空变化特征分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第1期
页码:
233-240
栏目:
出版日期:
2018-01-31

文章信息/Info

Title:
 Temporal and Spatial Pattern of Temperate Steppe NPP in Inner Mongolia
文章编号:
1001-7461(2018)01-0233-08
作者:
 潘萌甜1; 梁俊红1*; 李佳2; 姜群鸥3; 聂承静4
 (1.湖北师范大学 城市与环境学院，湖北 黄石 435002；2.中国科学院 青藏高原研究所，北京 100101；3.北京林业大学 水土保持学院，北京 100083；4.河北经贸大学 公共管理学院，河北 石家庄 050061)
Author(s):
 PAN Meng-tian1; LIANG Jun-hong1*; LI Jia2; JIANG Qun-ou3; NIE Cheng-jing4
 (1.College of Urban and Environmental Sciences,Hubei Normal University,Huangshi,Hubei 435002,China; 2.Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China; 3.School of Soil and Water Conservation,Beijing Forestry University,Beijing 100038,China)
关键词:
 ; NPP;  温带草原;  气候因子;  LUE模型
Keywords:
 ; NPP;  temperate steppe;  climate factors;  LUE model
分类号:
S718.512
DOI:
10.3969/j.issn.1001-7461.2018.01.38
文献标志码:
A
摘要:
 温带草原植被净初级生产力(net primary productivity，NPP)及其对气候变化的响应研究是全球变化的核心内容之一。利用MODIS遥感数据驱动的LUE模型模拟内蒙古温带草原NPP,分析其对气候因子变化的响应关系。结果表明，1)温带草原2001-2014年多年平均NPP值为235.65 gC·m-2·a-1，呈东北向西南递减的趋势。草甸草原NPP值最大(358.97 gC·m-2·a-1)，典型草原次之(237.17 gC·m-2·a-1)，而荒漠草原值最小(127.77 gC·m-2·a-1)；2）温带草原NPP总体上呈上升趋势，集中在锡林郭勒东部和呼伦贝尔的草甸草原和内蒙西部地区的荒漠草原,而典型草原则有下降的趋势，集中在阴山和锡林郭勒中部地区；3）温带草原NPP总体上对降水的敏感性强于对温度的敏感性。草甸草原NPP同时受降水和温度影响，其中温度更为重要，典型草原和荒漠草原NPP主要受降水的影响。
Abstract:
 Temperate steppe net primary production (NPP) and its response to climate factors is one of the key issues in global change research.In this study,the temporal and spatial pattern of temperate steppe NPP were estimated by using a light use efficiency (LUE) model driven by MODIS atmosphere and land parameters in the Inner Mongolia Autonomous Region (IMAR) from 2001 to 2014.The results indicated that 1) spatial distribution of annual temperate steppe NPP showed a gradual decrease from the northeast to the southwest in IMAR.Mean annual NPP values for temperate steppe,meadow steppe,typical steppe and desert steppe biomes were 235.65,358.97,237.17 gC·m-2·a-1 and 127.77 gC·m-2·a-1,respectively.2) There was a rising trend in temperate steppe NPP during 2001 to 2014.Meadow steppe (in east Xilingol and Hulunbuir) and desert steppe (in west IMAR) exhibited obvious increasing trend,while typical steppe in Yin mountainous region and the center of Xilingol showed a decrease trend.3) Precipitation was the dominant driving force of temperate steppe NPP in IMAR.Meadow steppe NPP was correlated to both precipitation and temperature,but with more dependence on temperature,while precipitation influenced typical steppe and desert steppe NPP more seriously.

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备注/Memo

备注/Memo:
 收稿日期：2017-02-22修回日期：2017-06-16
基金项目：湖北省教育厅科学技术研究计划青年人才项目(Q20162502)；国家自然科学基金委重大研究计划（91325302）；中国博士后基金（2014M560110）；河北省社会科学基金（HB15GL087）；河北省自然科学基金（D2015207002）。
作者简介：潘萌甜，女，本科，研究方向：生态环境遥感。E-mail:462624745@qq.com
*通信作者：梁俊红，女，讲师，研究方向：土地可持续利用与GIS遥感应用。E-mail:1284651461@qq.com
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