Research on land resources restriction on population distribution in China, 2000-2010
Received date: 2013-12-25
Request revised date: 2014-05-03
Online published: 2014-08-20
Copyright
Population, resources, environment and development are the most important global issues the world is facing today. With population surge, the consequents such as shortage of resources, environmental pollution and other issues are increasingly attracting attention. As an important theme of regional sustainable development, the relationship between population distribution and resources, environment, and socio-economic development has attracted much attention for a long time. The resources restriction on population distribution becomes more significant for population growth in China, especially the land resources. This paper established a series of index system and models for evaluating land resources restriction on population distribution. The spatial-temporal features of land resources restriction on population distribution in China were assessed comprehensively in recent ten years at national, provincial and county scales. The limited degree, spatial pattern and changing law of land resources restriction on population pattern were also revealed quantitatively. The results showed that: (1) At the national level, the carrying capacity of land resources has been enhanced since 1949. The limited degree of land resources on population distribution in China declined during 2000-2010, down to 34.50 from 42.87. (2) At the provincial level, the relationship between population and grain production in China was improved from 2000 to 2010. The land resources restriction on population distribution had significant differences on provincial scale, and most of provinces were in low level. The restriction degree of land resources on population distribution overall showed a downward trend at the provincial level during 2000-2010. (3) At the county level, the relationship between population and grain production tended to be harmonious from 2000 to 2010. About 60% and 70% of the counties in China were not affected by land resources restriction respectively in 2000 and 2010. The restriction degree of land resources on population distribution was overall in low level at the county level and showed a downward trend in recent ten years. The basic spatial pattern of land resources restriction on population distribution showed that the eastern region surpassed the western region, that the southern region was superior to the northern region, and Yellow River Basin was higher than Yangtze River Basin.
Key words: population; land resources; carrying capacity; restriction degree
FENG Zhiming , YANG Yanzhao , YOU Zhen . Research on land resources restriction on population distribution in China, 2000-2010[J]. GEOGRAPHICAL RESEARCH, 2014 , 33(8) : 1395 -1405 . DOI: 10.11821/dlyj201408001
Fig. 1 Flow chart for land restriction in China图1 研究技术路线图 |
Fig. 2 Land carrying capacity in China from 1949 to 2010图2 1949年以来中国土地资源承载能力演变趋势 |
Fig. 3 Spatial distribution of land carrying capacity in China at province level in 2000 and 2010图3 2000年和2010年中国分省土地资源承载力 |
Tab. 1 Land carrying capacity in China at county level in 2000 and 2010表1 2000年和2010年中国分县土地资源承载力评价统计表 |
| 年份 | 承载力评价 | 土地 | 分县单元 | |||
|---|---|---|---|---|---|---|
| 数量(104km2) | 比例(%) | 数量(个) | 比例(%) | |||
| 2000 | 粮食盈余 | 453.86 | 47.46 | 845 | 35.56 | |
| 人粮平衡 | 181.03 | 18.93 | 587 | 24.71 | ||
| 土地超载 | 321.41 | 33.61 | 944 | 39.73 | ||
| 2010 | 粮食盈余 | 592.33 | 61.94 | 1262 | 53.63 | |
| 人粮平衡 | 137.13 | 14.34 | 400 | 17.00 | ||
| 土地超载 | 226.83 | 23.72 | 691 | 29.37 | ||
Fig. 4 Spatial distribution of land carrying capacity in China at county level in 2000 and 2010图4 2000年和2010年中国分县土地资源承载力空间格局 |
Fig. 5 Trends of land resource restriction in China in 2000 and 2010图5 2000年和2010年中国土地资源限制度变化趋势 |
Fig. 6 Spatial distribution of land resource restriction in China at province level in 2000 and 2010图6 2000年和2010年中国分省土地资源限制度空间格局 |
Tab. 2 Land resource restriction in China at county level in 2000 and 2010表2 2000年和2010年中国分县土地资源限制度评价统计表 |
| 土地 资源 限制度 | 2000 | 2010 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 土地 | 人口 | 县区 | 土地 | 人口 | 县区 | |||||||
| 数量 (104km2) | 比例 (%) | 数量 (万人) | 比例 (%) | 数量 (个) | 比例 (%) | 数量 (104km2) | 比例 (%) | 数量 (万人) | 比例 (%) | 数量 (个) | 比例 (%) | |
| 0 | 631.25 | 66.01 | 72316.87 | 57.13 | 1432 | 60.27 | 729.46 | 76.28 | 87752 | 65.50 | 1662 | 70.63 |
| 0~20 | 35.57 | 3.72 | 7189.91 | 5.68 | 135 | 5.68 | 41.50 | 4.34 | 4220.13 | 3.15 | 94 | 3.99 |
| 20~40 | 109.88 | 11.49 | 14126.66 | 11.16 | 276 | 11.62 | 55.27 | 5.78 | 9686.21 | 7.23 | 192 | 8.16 |
| 40~60 | 54.13 | 5.66 | 9126.63 | 7.21 | 166 | 6.99 | 42.75 | 4.47 | 4220.13 | 3.15 | 87 | 3.70 |
| 60~80 | 19.89 | 2.08 | 4708.89 | 3.72 | 93 | 3.91 | 13.77 | 1.44 | 2679.45 | 2.00 | 59 | 2.51 |
| 80~100 | 105.57 | 11.04 | 19114.03 | 15.10 | 274 | 11.53 | 73.54 | 7.69 | 25414.6 | 18.97 | 259 | 11.01 |
Fig. 7 Spatial distribution of land resource restriction in China at county level in 2000 and 2010图7 2000年和2010年中国分县土地资源限制度空间格局 |
The authors have declared that no competing interests exist.
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