Spatial and Temporal Variations in Grassland Production from 2006 to 2015 in Mongolia Along the China-Mongolia Railway

doi:10.3390/su11072177

	Spatial and Temporal Variations in Grassland Production from 2006 to 2015 in Mongolia Along the China-Mongolia Railway
	Li, Ge 1,2; Wang, Juanle 1,3; Wang, Yanjie 1,4; Wei, Haishuo 1,2; Ochir, Altansukh 5; Davaasuren, Davaadorj 6; Chonokhuu, Sonomdagva 5; Nasanbat, Elbegjargal 7
刊名	SUSTAINABILITY
	2019-04-01
卷号	11 期号:7 页码:14
关键词	China-Mongolia Railway remote sensing estimation model grassland production sustainable development
ISSN号	2071-1050
DOI	10.3390/su11072177
通讯作者	Wang, Juanle(wangjl@igsnrr.ac.cn)
英文摘要	Grassland biomass is the embodiment of grassland productivity, and the material basis for the maintenance of the grassland ecosystem. Grassland is the main vegetation type in the Mongolian Plateau. Grassland changes in the core region of the China-Mongolia-Russia Economic Corridor of the Belt and Road Initiative have an important impact on regional ecology, environmental conservation, and sustainable development. This study established three types of models for estimating grassland production through statistical analysis methods using NDVI, EVI, MSAVI, and PsnNet remote sensing indices retrieved from a Moderate Resolution Imaging Spectroradiometer (MODIS) dataset. This was combined with ground-measured grassland data and meteorological data. Based on model evaluation, the spatial and temporal distribution and variation characteristics of grassland along the Mongolia part of the China-Mongolia Railway were obtained through inversion for the period from 2006 to 2015. The results showed that all the models had good simulation effects. The optimal model was an exponential model based on MSAVIwith its simulation accuracy reaching 78%. Grassland production in the study area has increased slightly in the past ten years, with little change in the first five years and a fluctuating increase in the next five years. The average grassland production (per unit production) in the past ten years was 3400.39 kg/ha and the average total production was 9707.88 x 10(4) t. Grassland production increased slightly in most areas along the railway, and in some areas it continued to decline. The regional spatial distribution of increased and decreased grassland production was significantly different. With better grassland resources in the northeastern part of the study areathe area around Chinggis City and the capital of Hentiy Provincehad the most significant growth. However, the southern Gobi areawith its trend towards land degradation in the area where the southern Gobi and desert steppe transitions to steppe and dry steppehad a significant decrease. This meant that the risk of grassland degradation still existed. There were also quantitative and spatial differences in the areas where grassland production decreased on both sides of the railway. The decrease in grassland production on the western side of the railway was more obvious than on the eastern side, and the reduction area was dispersed on the western side and relatively concentrated on the eastern side. In future research, the identification of key areas of grassland degradation along the China-Mongolia Railway as well as its driving forces should be investigated further.
资助项目	Chinese Academy of Sciences[XDA2003020302] ; Asia Research Center, Mongolia ; Korea Foundation for Advanced Studies, Korea[P2018-3606] ; China Knowledge Center for Engineering Sciences and Technology[CKCEST-2018-2-8]
WOS关键词	DYNAMICS ; CARBON
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000466551600354
资助机构	Chinese Academy of Sciences ; Asia Research Center, Mongolia ; Korea Foundation for Advanced Studies, Korea ; China Knowledge Center for Engineering Sciences and Technology
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59778]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Juanle
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Shandong Univ Technol, Sch Civil & Architectural Engn, Zibo 255049, Peoples R China 3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China 4.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China 5.Natl Univ Mongolia, Sch Engn & Appl Sci, Ulaanbaatar 210646, Mongolia 6.Natl Univ Mongolia, Sch Art & Sci, Ulaanbaatar 14201, Mongolia 7.Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar 15160, Mongolia
推荐引用方式 GB/T 7714	Li, Ge,Wang, Juanle,Wang, Yanjie,et al. Spatial and Temporal Variations in Grassland Production from 2006 to 2015 in Mongolia Along the China-Mongolia Railway[J]. SUSTAINABILITY,2019,11(7):14.
APA	Li, Ge.,Wang, Juanle.,Wang, Yanjie.,Wei, Haishuo.,Ochir, Altansukh.,...&Nasanbat, Elbegjargal.(2019).Spatial and Temporal Variations in Grassland Production from 2006 to 2015 in Mongolia Along the China-Mongolia Railway.SUSTAINABILITY,11(7),14.
MLA	Li, Ge,et al."Spatial and Temporal Variations in Grassland Production from 2006 to 2015 in Mongolia Along the China-Mongolia Railway".SUSTAINABILITY 11.7(2019):14.