1992-2017年基于荟萃分析的中国耕地撂荒时空特征
Spatio-temporal pattern of cropland abandonment in China from 1992 to 2017: A Meta-analysis
查看参考文献25篇
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文摘
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当前耕地撂荒已成为一种日益普遍的土地利用变化现象,对粮食安全和生态环境具有重要影响。为揭示1992-2017年中国耕地撂荒的时空特征及驱动机制,采用集成分析的思路,对县(市)域尺度撂荒的研究成果进行了汇总梳理,从中提取撂荒时间、位置、规模(程度)、成因等信息,并进行了荟萃分析。结果发现:1992-2017年全国范围内有撂荒记录的县(市)共165个,主要分布于南方,集中分布区呈逆时针旋转90°的"T"字型,纵轴自北至南贯穿甘肃东南部、四川东部、重庆境内,直至贵州西部和云南北部;横轴位于长江中下游地区,自西向东贯穿湖北、湖南、安徽、江西。其中,湖南、四川、安徽有撂荒记录的县(市)数量较多,分别为24个、23个、21个,其次是湖北、重庆、福建、甘肃、云南,均超过10个。"T"字型结构的形成经历两个阶段,大致以2010年为界,此前有撂荒记录的县(市)为102个,集中分布于沿长江中下游的东西向带状区域,形成横轴;此后新增63个县(市),集中分布于自甘肃东南部至贵州西部和云南北部地区的南北向带状区域,形成纵轴。撂荒格局的形成过程与区域经济发展和产业结构调整背景下的农业劳动力析出基本同步。农业收益低和劳动力不足分别是86%和78%的县(市)撂荒形成的共性因素。 |
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其他语种文摘
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Cropland abandonment has increasingly occurred in China, which potentially affects national food and ecological security. This study collected existing publications focusing on cropland abandonment. Then, we extracted the key characteristics of cropland abandonment events, including time, location, magnitude, and driving force. The meta-analysis was carried out on these items to disclose the spatio- temporal pattern and main drivers of cropland abandonment in China in the last three decades. We found that there were a total of 163 counties in which cropland abandonment occurred according to the existing literature. These counties were mostly located in southern China and, in particular, exhibited a pattern of a T-shape on 90 degree anticlockwise rotation. The vertical axis exhibited a north-south belt across southeastern Gansu Province, eastern Sichuan Province, Chongqing, western Guizhou Province, and northern Yunnan Province. The horizontal axis exhibited a west-east belt along the middle to lower reaches of the Yangtze River across southern Hubei Province, northern Hunan Province, and central to southern Anhui Province. In the provinces of Hunan, Sichuan, and Anhui, cropland abandonment can be found in 24,23,and 21 counties, respectively; in Hubei, Chongqing, Fujian, Gansu, and Yunnan provincial-level areas, there are more than 10 counties with cropland abandonment. The formation of the “T” structure underwent two stages. Before 2010, there were 102 counties with cropland abandonment that mainly existed along the middle to lower reaches of the Yangtze River, where the horizontal axis occurred. Since 2010, there have been 63 counties with cropland abandonment, mostly existing in the north-south belt from southeastern Gansu to northern Guizhou, where the vertical axis occurred. The spatiotemporal patterns of cropland abandonment events matched well with the labor emigration from agriculture in the context of regional economic development and industrial restructuring. The low economic efficiency of agriculture and the shortage of agricultural labor are two common drivers leading to cropland abandonment in 86% and 78% of counties, respectively. |
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来源
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地理学报
,2019,74(3):411-420 【核心库】
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DOI
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10.11821/dlxb201903001
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关键词
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中国
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撂荒
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荟萃分析
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时空特征
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地址
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中国科学院地理科学与资源研究所, 中国科学院陆地表层格局与模拟重点实验室, 北京, 100101
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哈尔滨师范大学, 黑龙江省普通高等学校地理环境遥感监测重点实验室, 哈尔滨, 150025
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0375-5444 |
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基金
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国家自然科学基金项目
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中国科学院前沿科学重点研究项目
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中国科学院青年创新促进会项目
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文献收藏号
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CSCD:6447505
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参考文献 共
25
共2页
|
|
1.
Dong J. Spatio-temporal pattern and rationality of land reclamation and cropland abandonment in mid-eastern Inner Mongolia of China in 1990-2005.
Environmental Monitoring and Assessment,2011,179:137-153
|
CSCD被引
8
次
|
|
|
|
|
2.
李升发. 耕地撂荒研究进展与展望.
地理学报,2016,71(3):370-389
|
CSCD被引
95
次
|
|
|
|
|
3.
Yan J. Drivers of cropland abandonment in mountainous areas:A household decision model on farming scale in Southwest China.
Land Use Policy,2016,57:459-469
|
CSCD被引
18
次
|
|
|
|
|
4.
邵景安. 山区土地流转对缓解耕地撂荒的作用.
地理学报,2015,70(4):636-649
|
CSCD被引
43
次
|
|
|
|
|
5.
定光平. 惠农政策下丘陵山区农地边际化的理论分析与实证——以湖北省通城县为例.
地理研究,2009,28(1):109-117
|
CSCD被引
10
次
|
|
|
|
|
6.
Yu Z. Exploring the factors driving seasonal farmland abandonment:A case study at the regional level in Hunan Province, Central China.
Sustainability,2017,9(2):1-18
|
CSCD被引
3
次
|
|
|
|
|
7.
李赞红. 不同类型农户撂荒及其影响因素研究——以重庆市12个典型村为例.
地理研究,2014,33(4):721-734
|
CSCD被引
55
次
|
|
|
|
|
8.
Zhang Z. Soil resistance to concentrated flow and sediment yields following cropland abandonment on the Loess Plateau, China.
Journal of Soils and Sediments,2017,17(6):1662-1671
|
CSCD被引
3
次
|
|
|
|
|
9.
Wertebach T M. Soil carbon sequestration due to post-Soviet cropland abandonment:Estimates from a large-scale soil organic carbon field inventory.
Global Change Biology,2017,23(9):3729
|
CSCD被引
2
次
|
|
|
|
|
10.
Li S. Global understanding of farmland abandonment:A review and prospects.
Journal of Geographical Sciences,2017,27(9):1123-1150
|
CSCD被引
11
次
|
|
|
|
|
11.
桑广书. 浙江非农经济发达地区耕地撂荒问题分析——以余姚市低糖街道为例.
安徽农业科学,2007(5):1459-1463
|
CSCD被引
3
次
|
|
|
|
|
12.
熊祥强. 农村土地抛荒问题的调查与分析——以重庆市忠县三汇镇为例.
安徽农业科学,2006,34(11):2536-2538
|
CSCD被引
5
次
|
|
|
|
|
13.
郑财贵. 基于GIS空间分析的撂荒地空间分布特征研究:以重庆市璧山县大路镇为例.
农机化研究,2010,32(3):31-36
|
CSCD被引
9
次
|
|
|
|
|
14.
Zhang Y. Determinants of cropland abandonment at the parcel, household and village levels in mountain areas of China:A multi-level analysis.
Land Use Policy,2014,41:186-192
|
CSCD被引
58
次
|
|
|
|
|
15.
Zhang Y. Land abandonment under rural restructuring in China explained from a cost-benefit perspective.
Journal of Rural Studies,2016,47:524-532
|
CSCD被引
22
次
|
|
|
|
|
16.
薛宝全. 汉中市汉台区农村耕地撂荒成因分析及对策.
安徽农业科学,2017,45(27):243-250
|
CSCD被引
1
次
|
|
|
|
|
17.
许洪富. 秀山县农村耕地撂荒现状及对策.
现代农业科技,2016(9):345-346
|
CSCD被引
1
次
|
|
|
|
|
18.
李升发. 中国山区耕地撂荒程度及空间分布——基于全国山区抽样调查结果.
资源科学,2017,39(10):1801-1811
|
CSCD被引
55
次
|
|
|
|
|
19.
Guo L B. Soil carbon stocks and land use change:A meta analysis.
Global Change Biology,2002,8:345-360
|
CSCD被引
269
次
|
|
|
|
|
20.
Seto K C. A meta-analysis of global urban land expansion.
Plos One,2011,6(8):e23777
|
CSCD被引
100
次
|
|
|
|
|
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