Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016

Wenjiao SHI; Changhe LU; Xiaoli SHI; Jiaying CUI

doi:10.1007/s11442-020-1801-0

Journal of Geographical Sciences, Volume. 30, Issue 10, 1590(2020)

Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016

Wenjiao SHI1...3,*, Changhe LU1,3, Xiaoli SHI2 and Jiaying CUI2 |Show fewer author(s)

¹Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

²Key Laboratory of Environmental Evolvement and Ecological Construction of Hebei Province, College of Resources and Environment Sciences, Hebei Normal University, Shijiazhuang 050024, China

³College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(7)

Fig. 1. Distribution of land use types on the Tibetan Plateau

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Fig. 2. Changes in capacity for grain self-sufficiency on the Tibetan Plateau

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Fig. 3. Capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 2010 and 2016

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Fig. 4. Capacities for grain self-sufficiency at the county level on the Tibetan Plateau between 2010 and 2016

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Fig. 5. Changes in grain self-sufficiency on the Tibetan Plateau between 1985 and 2016

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Table 1.
Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

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Table 1.
Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

County	Adjustment in grain production (P_all)	Adjustment in grain consumption (C_all)
Minle	P_all × 0.005	C_all × 0.002
Shandan	P_all × 0.001	C_all × 0.001
Qiemo	P_all × 0.014	C_all × 0.024
Yutian	P_all × 0.006	C_all × 0.017
Minfeng	P_all × 0.042	C_all × 0.033

Table 2.
The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016

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Table 2.
The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016

Provincial component	Period	Production(×10⁴ t)	Consumption (×10⁴ t)	Self-sufficiency rate (%)	Supply-demand gap (×10⁴ t)
Sichuan	1985-1989	113.35	79.24	143.05	-34.11
	1990-1999	125.92	82.59	152.47	-43.33
	2000-2009	122.62	79.89	153.49	-42.73
	2010-2016	135.03	70.83	190.63	-64.20
Yunnan	1985-1989	55.50	35.04	158.37	-20.46
	1990-1999	66.98	45.53	147.09	-21.44
	2000-2009	79.70	40.36	197.48	-39.34
	2010-2016	99.59	38.35	259.67	-61.24
Gansu	1985-1989	54.78	64.10	85.47	9.31
	1990-1999	64.35	72.12	89.22	7.77
	2000-2009	76.92	78.98	97.39	2.06
	2010-2016	99.66	61.82	161.20	-37.83
Xinjiang	1985-1989	0.82	1.78	46.16	0.96
	1990-1999	1.19	2.06	57.49	0.88
	2000-2009	1.26	2.25	55.85	1.00
	2010-2016	2.67	2.92	91.32	0.25
Tibet	1985-1989	51.74	39.22	131.94	-12.52
	1990-1999	70.35	49.98	140.77	-20.37
	2000-2009	94.41	64.63	146.07	-29.78
	2010-2016	96.86	71.77	134.96	-25.09
Qinghai	1985-1989	105.08	83.39	126.01	-21.69
	1990-1999	113.32	93.31	121.44	-20.01
	2000-2009	88.84	91.67	96.91	2.83
	2010-2016	124.61	76.68	162.50	-47.92

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Wenjiao SHI, Changhe LU, Xiaoli SHI, Jiaying CUI. Patterns and trends in grain self-sufficiency on the Tibetan Plateau during 1985-2016[J]. Journal of Geographical Sciences, 2020, 30(10): 1590

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Paper Information

Category: Research Articles

Received: Jun. 18, 2020

Accepted: Aug. 6, 2020

Published Online: Apr. 21, 2021

The Author Email: SHI Wenjiao (shiwj@lreis.ac.cn)

DOI:10.1007/s11442-020-1801-0

Topics

Resource Economy

Research Articles

Table 1. Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

Table 1. Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

Table 2. The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016

Table 2. The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016

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Table 1.
Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

Table 1.
Revised methods for calculating grain supply and demand in marginal counties of the Tibetan Plateau

Table 2.
The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016

Table 2.
The changes of capacity for grain self-sufficiency in different provincial-level regions that comprise the Tibetan Plateau between 1985 and 2016