<trans-title>Gridded reconstruction of spatiotemporal evolution of cropland in the Zhangjiu River Basin in Yunnan Province from 1700 to 1978</trans-title>

Renlong HUO; Yuda YANG; Zhimin MAN

doi:10.11821/dlxb202009011

Acta Geographica Sinica, Volume. 75, Issue 9, 1966(2020)

Gridded reconstruction of spatiotemporal evolution of cropland in the Zhangjiu River Basin in Yunnan Province from 1700 to 1978

Renlong HUO1... Yuda YANG2 and Zhimin MAN2 |Show fewer author(s)

Author Affiliations

¹Collaborative Innovation Center for Security and Development of Western Frontier China, Sichuan University, Chengdu 610065, China

²Center for Historical Geographical Studies of Fudan University, Shanghai 200433, China

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Figures & Tables(14)

Fig. 1. The study area

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Fig. 2. The technical route

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Fig. 3. Spatial pattern of cropland in the Zhangjiu River Basin in 1700

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Fig. 4. Spatial pattern of cropland in the Zhangjiu River Basin at a 30 m × 30 m resolution from 1700 to 1978

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Fig. 5. Reclamation rates on different terrain types in the Zhangjiu River Basin from 1700 to 1978

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Fig. 6. Changes in per capita cropland area in the Zhangjiu River Basin from 1700 to 1978

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Table 1. Relationship between cropland reclamation area, population, and agricultural technology in mountainous settlements in Yunnan Province

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Table 1. Relationship between cropland reclamation area, population, and agricultural technology in mountainous settlements in Yunnan Province

创建时间(a)	发展阶段	人口来源	田地开垦情况	水利情况
0~100	初建时期	自然增长和机械增长	大量开垦	少量兴修
100~200	发展时期	自然增长和机械增长	少量开垦	大量兴修
≥ 200	成熟时期	自然增长为主	少量开垦	少量兴修

Table 2. Coefficients of population driving changes in cropland areas in settlements on different terrain types of settlements in the Zhangjiu River Basin from 1700 to 1978

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Table 2. Coefficients of population driving changes in cropland areas in settlements on different terrain types of settlements in the Zhangjiu River Basin from 1700 to 1978

时间	中下游河谷区	平坝区	半山区	山区
1700—1750年	1.11	1.12	1.13	1.14
1751—1800年	1.11	1.11	1.13	1.15
1801—1850年	1.11	1.11	1.12	1.16
1851—1900年	1.01	1.11	1.12	1.16
1901—1950年	1.11	1.11	1.12	1.17
1951—1978年	1.41	1.41	1.43	1.46

Table 3. Coefficients of institutional and policy factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

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Table 3. Coefficients of institutional and policy factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

时间	中下游河谷区	平坝区	半山区	山区
1700—1750年	1.1	1.1	1.1	1.1
1751—1800年	1.1	1.1	1.1	1.1
1801—1850年	1.1	1.1	1.1	1.1
1851—1900年	1.0	1.1	1.1	1.1
1901—1950年	1.1	1.1	1.2	1.2
1951—1978年	1.15	1.15	1.3	1.6

Table 4. Coefficients of water conservation technology driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

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Table 4. Coefficients of water conservation technology driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

时间	中下游河谷	平坝	半山区	山区
1700—1750年	0.9	0.9	0.95	0.95
1751—1800年	0.9	0.9	0.95	0.95
1801—1850年	0.9	0.9	0.95	0.95
1851—1900年	1.0	0.9	0.95	0.95
1901—1950年	0.9	0.9	0.95	0.95
1951—1978年	0.7	0.7	0.75	0.8

Table 5. Coefficients of anthropogenic factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

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Table 5. Coefficients of anthropogenic factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

时间	中下游河谷区	平坝区	半山区	山区
1701—1750年	1.10	1.11	1.18	1.19
1751—1800年	1.10	1.10	1.18	1.20
1801—1850年	1.10	1.10	1.17	1.21
1851—1900年	1.01	1.10	1.17	1.21
1901—1950年	1.10	1.10	1.28	1.33
1951—1978年	1.14	1.14	1.39	1.87

Table 6. Settlement density and potential cropland radii for different terrain types in the Zhangjiu River Basin

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Table 6. Settlement density and potential cropland radii for different terrain types in the Zhangjiu River Basin

地形	面积(km²)	占总面积的(%)	聚落数量(个)	聚落密度(个/km²)	理论耕地分布半径R(m)
中下游河谷区	83.2	6	92	1.1	550
平坝区	152.4	11	83	0.5	-
海拔2200 m以下平坝区	74.8	-	59	0.8	650
海拔2200 m以上平坝区	77.6	-	24	0.3	1000
半山区	195.3	14	191	1.0	600
山区	945.3	69	414	0.4	850

Table 7. Total cropland area and per capita cropland area for different terrain types in the Zhangjiu River Basin in 1700

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Table 7. Total cropland area and per capita cropland area for different terrain types in the Zhangjiu River Basin in 1700

区域	耕地面积(hm²)	人口数量(人)	人均耕地面积(hm²/人)	20世纪50年代初最低耕地保障量(hm²/人)
中下游河谷区	657.20	4619	0.14	0.07
平坝区	416.67	2068	0.20	0.09
半山区	563.67	2578	0.22	0.12
山区	1291.33	2265	0.57	0.29

Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm²)

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Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm²)

时间	中下游河谷区	平坝区	半山区	山区	流域
1700	657	417	564	1291	2929
1750	756	491	717	1706	3670
1800	891	630	992	2404	4917
1850	1055	866	1412	3725	7057
1900	1146	1164	1891	5450	9652
1950	1340	1451	2632	8232	13655
1978	1637	1925	3825	14139	21526

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Renlong HUO, Yuda YANG, Zhimin MAN. Gridded reconstruction of spatiotemporal evolution of cropland in the Zhangjiu River Basin in Yunnan Province from 1700 to 1978[J]. Acta Geographica Sinica, 2020, 75(9): 1966

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Paper Information

Received: Sep. 9, 2019

Accepted: --

Published Online: Apr. 14, 2021

The Author Email:

DOI:10.11821/dlxb202009011

Topics

Resource Economy

Research Articles

Table 1. Relationship between cropland reclamation area, population, and agricultural technology in mountainous settlements in Yunnan Province

Table 1. Relationship between cropland reclamation area, population, and agricultural technology in mountainous settlements in Yunnan Province

Table 2. Coefficients of population driving changes in cropland areas in settlements on different terrain types of settlements in the Zhangjiu River Basin from 1700 to 1978

Table 2. Coefficients of population driving changes in cropland areas in settlements on different terrain types of settlements in the Zhangjiu River Basin from 1700 to 1978

Table 3. Coefficients of institutional and policy factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 3. Coefficients of institutional and policy factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 4. Coefficients of water conservation technology driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 4. Coefficients of water conservation technology driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 5. Coefficients of anthropogenic factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 5. Coefficients of anthropogenic factors driving changes in cropland areas on different terrain types in the Zhangjiu River Basin from 1700 to 1978

Table 6. Settlement density and potential cropland radii for different terrain types in the Zhangjiu River Basin

Table 6. Settlement density and potential cropland radii for different terrain types in the Zhangjiu River Basin

Table 7. Total cropland area and per capita cropland area for different terrain types in the Zhangjiu River Basin in 1700

Table 7. Total cropland area and per capita cropland area for different terrain types in the Zhangjiu River Basin in 1700

Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm2)

Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm2)

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Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm²)

Table 8. Cropland area in the Zhangjiu River Basin from 1700 to 1978 (hm²)