<trans-title>Study on Estimation Method of Mongolia Grassland Production based on Sparse Samples</trans-title>

Yanjie WANG; Juanle WANG; Haishuo WEI; Ochir ALTANSUKH; Davaasuren DAVAADORJ; Chonokhuu SONOMDAGVA

doi:10.12082/dqxxkx.2020.190675

Journal of Geo-information Science, Volume. 22, Issue 9, 1814(2020)

Study on Estimation Method of Mongolia Grassland Production based on Sparse Samples

Yanjie WANG1...2, Juanle WANG2,4,*, Haishuo WEI2,3, Ochir ALTANSUKH5, Davaasuren DAVAADORJ6 and Chonokhuu SONOMDAGVA5 |Show fewer author(s)

Author Affiliations

¹College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing 100083, China

²State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

³School of Civil and Architectural Engineering, Shandong University of Technology, Zibo 255049, China

⁴Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China

⁵School of Engineering and Applied Sciences, National University of Mongolia, Ulaanbaatar 210646, Mongolia

⁶School of the Art & Sciences, National University of Mongolia, Ulaanbaatar 210646, Mongolia

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Figures & Tables(8)

Fig. 1. 200 km buffer zone along the China-Mongolia Railway (Mongolia)

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Fig. 2. Comparison of actual value and estimated value of samples by P-BSHADE and Kriging

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Fig. 3. Distribution of interpolation samples based on P-BSHADE method

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Fig. 4. The spatial distribution of grassland production along the China-Mongolia railway (Mongolia) from 2000 to 2019

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Fig. 5. Annual grassland production along the China-Mongolia railway (Mongolia) from 2000 to 2019

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Table 1. Correlation analysis between grassland production along the China-Mongolia railway (Mongolia) and vegetation indices
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Table 1. Correlation analysis between grassland production along the China-Mongolia railway (Mongolia) and vegetation indices
要素 EVI NDVI PsnNet
相关系数 0.833^** 0.863^** 0.845^**
P值 0.000 0.000 0.000

Table 2. Estimation models of grassland production along the China-Mongolia railway (Mongolia) based on different vegetation indices and accuracy comparison

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Table 2. Estimation models of grassland production along the China-Mongolia railway (Mongolia) based on different vegetation indices and accuracy comparison

建模参数	模型	方程	R²	RMSE/（kg/hm²）	精度/%
NDVI	线性模型	Y=-12.687+208.515X₁	0.72	56.89	75
NDVI	指数模型	Y=10.074exp（3.897X₁）	0.64	42.91	80
EVI	线性模型	Y=-11.687+316.114X₂	0.66	63.89	72
EVI	指数模型	Y=10.582exp（5.799X₂）	0.57	48.05	78
PsnNet	线性模型	Y=6.887+2989.807X₃	0.68	81.65	69
PsnNet	指数模型	Y=17.236exp（50.095X₃）	0.55	60.03	73

Table 3. Statistics of annual grassland production along the China-Mongolia Railway (Mongolia) from 2000 to 2019

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Table 3. Statistics of annual grassland production along the China-Mongolia Railway (Mongolia) from 2000 to 2019

年份	单产/（kg/hm²）	总产/10⁴t
2000	4063.23	1862.97
2001	4734.25	2170.49
2002	4178.61	1915.84
2003	4603.98	2110.93
2004	4551.33	2086.81
2005	3982.20	1825.84
2006	4721.28	2164.76
2007	3696.65	1694.92
2008	5054.46	2317.36
2009	4741.86	2174.14
2010	4361.11	1999.63
2011	5143.61	2358.30
2012	5790.50	2654.97
2013	5203.05	2385.58
2014	5431.39	2490.22
2015	3758.04	1723.11
2016	5156.34	2364.27
2017	3294.82	1510.57
2018	5092.15	2334.79
2019	4802.51	2202.00
平均	4618.07	2117.38

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Yanjie WANG, Juanle WANG, Haishuo WEI, Ochir ALTANSUKH, Davaasuren DAVAADORJ, Chonokhuu SONOMDAGVA. Study on Estimation Method of Mongolia Grassland Production based on Sparse Samples[J]. Journal of Geo-information Science, 2020, 22(9): 1814

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Paper Information

Received: Nov. 9, 2019

Accepted: --

Published Online: Apr. 23, 2021

The Author Email: WANG Juanle (wangjl@igsnrr.ac.cn)

DOI:10.12082/dqxxkx.2020.190675

Topics

Resource Economy

Research Articles

Table 1. Correlation analysis between grassland production along the China-Mongolia railway (Mongolia) and vegetation indices

Table 1. Correlation analysis between grassland production along the China-Mongolia railway (Mongolia) and vegetation indices

Table 2. Estimation models of grassland production along the China-Mongolia railway (Mongolia) based on different vegetation indices and accuracy comparison

Table 2. Estimation models of grassland production along the China-Mongolia railway (Mongolia) based on different vegetation indices and accuracy comparison

Table 3. Statistics of annual grassland production along the China-Mongolia Railway (Mongolia) from 2000 to 2019

Table 3. Statistics of annual grassland production along the China-Mongolia Railway (Mongolia) from 2000 to 2019

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