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Impact of Labor Transfer on Agricultural Land Use Conversion at Rural Household Level Based on Logit Model

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Chinese Geographical Science 2008年第4期18卷 300-307页

作者： zhong taiyang ZHANG Xiuying HUANG Xianjin School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China International Institute for Earth System Science Nanjing University Nanjing 210093 China

Since land and labor force are primary resources to be used and controlled by rural households, the allocation of labor forces will influence land uses, and further lead to land use conversion. The present study used the Binary Logit model to investigate the influence of labor force transfer, characteristics of rural households, location, and land market on agricultural land use conversion at rural household level. This study was conducted based on 329 valid questionnaires, which were obtained in Changshu, Rudong, and Tongshan counties, respectively representing the southern, middle and northern areas of Jiangsu Province. The results showed that land market participation, location, zonal difference and labor transfer had strong influences on agricultural land use conversion. The participation of land market had a strong positive effect on land use conversion, especially for the farmland converted to the fishpond. The nearer to the county seat, the more conversion of land use occurred. Particularly, the labor force transfer caused by wage employment decreased this conversion probability, while the labor transfer caused by self-employment led to more conversion; and the increasing of income from labor transfer increased the conversion. Moreover, land use con- versions demonstrated zonal difference, which were more in Rudong and Changshu counties than in Tongshan County, and the factors influencing this conversion were different in the three regions.

关键词： labor force transfer agricultural land use conversion rural household Logit model Jiangsu Province China

Carbon footprint of different industrial spaces based on energy consumption in China

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Journal of Geographical Sciences 2011年第2期21卷 285-300页

作者： ZHAO Rongqin HUANG Xianjin zhong taiyang PENG Jiawen School of Geographic & Oceanographic Sciences Nanjing University Nanjing 210093 China College of Resources and Environment North China Institute of Water Conservancy and Hydroelectric Power Zhengzhou 450011 China

Using energy consumption and land use data of each region of China in 2007, this paper established carbon emission and carbon footprint model based on energy consumption and estimated the carbon emission amount of fossil energy and rural biomass energy of dif- ferent regions of China in 2007. Through matching the energy consumption items with industrial spaces, this paper divided industrial spaces into five types： agricultural space, living ＆ industrial-commercial space, transportation industrial space, fishery and water conservancy space, and other industrial space. Then the author analyzed the carbon emission intensity and carbon footprint of each industrial space. Finally, advices of decreasing industrial carbon footprint and optimizing industrial space pattern were put forward. The main conclusions are as following：（1） Total amount of carbon emission from energy consumption of China in 2007 was about 1.65 GtC, in which the proportion of carbon emission from fossil energy was 89%. （2） Carbon emission intensity of industrial space of China in 2007 was 1.98 t/hm^2, in which, carbon emission intensity of living ＆ industrial-commercial space and of transportation industrial space was 55.16 t/hm^2 and 49.65 t/hm^2 respectively, they were high-carbon-emission industrial spaces among others. （3） Carbon footprint caused by industrial activities of China in 2007 was 522.34×10^6 hm^2, which brought about ecological deficit of 28.69×10^6 hm^2, which means that the productive lands were not sufficient to compensate for carbon footprint of industrial activities, and the compensating rate was 94.5%. As to the regional carbon footprint several regions have ecological profit while others have not. In general, the present ecological deficit caused by industrial activities was small in 2007. （4） Per unit area carbon footprint of industrial space in China was about 0.63 hm^2/hm^2 in 2007, in which that of living ＆ industrial-commercial space was the highest （17.5 hm^2/hm^2）. The p

关键词： industrial space carbon footprint carbon emission intensity energy consumption China

Urban carbon footprint and carbon cycle pressure： The case study of Nanjing

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Journal of Geographical Sciences 2014年第1期24卷 159-176页

作者： ZHAO Rongqin HUANG Xianjin LIU Ying zhong taiyang DING Minglei CHUAI Xiaowei School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China College of Resources and Environment North China University of Water Resources and Electric PowerZhengzhou 450045 China College of Civil Construction Engineering Zhengzhou Institute of Aeronautical Industry ManagementZhengzhou 450046 China

Urban carbon footprint reflects the impact and pressure of human activities on ur- ban environment. Based on city level, this paper estimated carbon emissions and carbon footprint of Nanjing city, analyzed urban carbon footprint intensity and carbon cycle pressure and discussed the influencing factors of carbon footprint through LMDI decomposition model. The main conclusions are as follows：（1） The total carbon emissions of Nanjing increased rapidly since 2000, in which the carbon emission from the use of fossil energy was the largest Meanwhile, carbon sinks of Nanjing presented a declining trend since 2000, which caused the decrease of carbon compensation rate and the increase of urban carbon cycle pressure. （2） The total carbon footprint of Nanjing increased rapidly since 2000, and the carbon deficit was more than ten times of total land areas of Nanjing in 2009, which means Nanjing confronted high carbon cycle pressure. （3） Generally, carbon footprint intensity of Nanjing was on de- crease and the carbon footprint productivity was on increase. This indicated that energy utilization rate and carbon efficiency of Nanjing was improved since 2000, and the policy for energy conservation and emission reduction taken by Nanjing＇s government received better effects. （4） Economic development, population and industrial structure are promoting factors for the increase of carbon footprint of Nanjing, while the industrial carbon footprint intensity was inhibitory factor. （5） Several countermeasures should be taken to decrease urban carbon footprint and alleviate carbon cycle pressure, such as： improvement of the energy efficiency, industrial structure reconstruction, afforestation and environmental protection and land use control. Generally, transition to low-carbon economy is essential for Chinese cities to realize sustainable development in the future.

关键词： carbon footprint carbon cycle pressure LMDI Nanjing

Comparative Analysis of Influence Factors on Arable Land Use Intensity at Farm Household Level:A Case Study Comparing Suyu District of Suqian City and Taixing City,Jiangsu Province,China

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Chinese Geographical Science 2012年第5期22卷 556-567页

作者： LU Xiao HUANG Xianjin zhong taiyang ZHAO Xiaofeng CHEN Yingxue GUO Shuiqiong School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China School of Geography and Tourism QuJu Normal University Qufu 273165 China Jiangsu Engineering CenterJbr Land Development and Consolidation Technology Nanjing 210093 China School of Government Nanjing University Nanjing 210093 China

Using data from the farm household survey conducted in 2009,arable land use intensity(ALUI)and its influence factors at farm household level were investigated by the Tobit *** District of Suqian City and Taixing City of Jiansu Province,China were chosen as the regions for *** results show that:1)On the average, the ALUI,labor intensity,yield-increasing input,and labor-saving input are 15 238.14 yuan(RMB)/ha,192 d/ha, 7233.01 yuan/ha,and 2451.32 yuan/ha in the less economically developed Suyu District,and 13 020.65 yuan/ha,181 d/ha,5871.82 yuan/ha,and 2625.97 yuan/ha in more economically developed Taixing *** figures indicate that Suyu District has higher ALUI and labor intensity input but lower labor-saving input.2)Comparing all the influence factors,the total arable land area in available and average plot size have bigger effects on arable land intensive use;to a small degree,family′s non-farm income affects labor intensity,yield-increasing input,and labor-saving input;the yield-increasing input decreases significantly when the householder has higher education attainment;the commercialization rates of agricultural products and the planting proportion of cash crops both have unstable influence on ALUI; the share of arable land rented in has few impacts on labor intensity,yield-increasing input,and labor-saving input. 3)There are no differences found in the internal impact mechanism of influence factors on the arable land intensive use behaviors of farm ***,there are conspicuous disparities in the impact degrees and statistical significance based on varying economic levels.4)Using the results as bases,this study proposes that the government should implement land management and agricultural policies according to local *** these policies should decrease land fragmentation to promote scale management of land and arable land use intensification.

关键词： arable land use intensity (ALUI) labor intensity yield-increasing input labor-saving input comparativeanalysis farm household

Comprehensive Assessment of Regional Circular Economy Development Based on Efficiency of Resource&Environment:A Case Study of Jiangsu Province

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Chinese Journal of Population,Resources and Environment 2006年第1期4卷 54-64页

作者： zhong taiyang Huang Xianjin Li Lulu Wang Chen Department of Urban and Resources Sciences Nanjing UniversityNanjingJiangsu 210093China Coliege of Land Resource and Environment Jiangxi Agricultural UniversityNanchangJiangxi 330045China

In the first,the paper gave a retrospective analysis on the comprehensive assessment of circular economic *** to the requirement of improving resource&environment efficiency,the paper designed an analytical framework for a comprehensive assessment of regional circular economic growth,which consists of the goal,object and technical line of the comprehensive assessment of regional circular economic *** that,the paper discussed the criterion for choosing the assessment index,the approaches of index's weighing determination,the means of data standardization,and the reference system of assessment index value and so *** to the framework of regional circular economic development evaluation,the paper made a comprehensive evaluation of Jiangsu Province's circular economic *** result shows that from temporal change,Jiangsu Province's circular economic development had different stages;from the spatial comparison,there is variance among different regions,which could be divided into different types according to the spatial variance and the relation between the development of circular economy and the aggregative index *** was a remarkable correlation between circular economic development level and GDP or the 2nd industry ***,the?aper gives some suggestions on how to promote the development of drcular economy in Jiangsu Province.

关键词： efficiency of resource&environment omprehensive assessment of circular economic ievelopment sustainable development Jiangsu province

Carbon Emission of Regional Land Use and Its Decomposition Analysis: Case Study of Nanjing City, China

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Chinese Geographical Science 2015年第2期25卷 198-212页

作者： ZHAO Rongqin HUANG Xianjin LIU Ying zhong taiyang DING Minglei CHUAI Xiaowei School of Resources and Environment North China University of Water Resources and Electric Power School of Geographic and Oceanographic Sciences Nanjing University College of Civil Construction Engineering Zhengzhou Institute of Aeronautical Industry Management

Through the matching relationship between land use types and carbon emission items, this paper estimated carbon emissions of different land use types in Nanjing City, China and analyzed the influencing factors of carbon emissions by Logarithmic Mean Divisia Index（LMDI） model. The main conclusions are as follows： 1） Total anthropogenic carbon emission of Nanjing increased from 1.22928 ×10^7 t in 2000 to 3.06939 × 10^7 t in 2009, in which the carbon emission of Inhabitation, mining ＆ manufacturing land accounted for 93% of the total. 2） The average land use carbon emission intensity of Nanjing in 2009 was 46.63 t/ha, in which carbon emission intensity of Inhabitation, mining ＆ manufacturing land was the highest（200.52 t/ha）, which was much higher than that of other land use types. 3） The average carbon source intensity in Nanjing was 16 times of the average carbon sink intensity（2.83 t/ha） in 2009, indicating that Nanjing was confronted with serious carbon deficit and huge carbon cycle pressure. 4） Land use area per unit GDP was an inhibitory factor for the increase of carbon emissions, while the other factors were all contributing factors. 5） Carbon emission effect evaluation should be introduced into land use activities to formulate low-carbon land use strategies in regional development.

关键词： carbon emission land use intensity Logarithmic Mean Divisia Index(LMDI) model decomposition analysis Nanjing City

土地出让相关收入央地分成政策变迁与耕地资源流失的关系

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资源科学 2016年第1期38卷 73-82页

作者：徐智颖钟太洋南京大学地理与海洋科学学院南京210023

近年来,中国土地财政问题引发的土地资源不合理利用已受到较多关注。探究央地政府间土地收入分配与耕地资源流失的相互作用机制,能为进一步完善土地财政政策提供决策建议。本文在梳理中国20世纪80年代起耕地占用税和国有土地有偿出让收... 详细信息

近年来,中国土地财政问题引发的土地资源不合理利用已受到较多关注。探究央地政府间土地收入分配与耕地资源流失的相互作用机制,能为进一步完善土地财政政策提供决策建议。本文在梳理中国20世纪80年代起耕地占用税和国有土地有偿出让收入央地分成政策的基础上,利用协整检验、VEC模型和Granger因果检验等方法分析央地分成比例变化与建设占用耕地面积的时间序列数据。结果表明,耕地占用税与国有土地有偿出让收入的央地分成比例在1987-1999年间变动频繁。耕地占用税及国有土地有偿出让收入分成变化与建设占用耕地之间存在长期协整关系,并且存在从分成变化到建设占用耕地面积变化的单向因果关系。这说明建设占用耕地面积的增减是对央地分成变化的主动响应,而土地出让收入分配的调整受到了政府行为等复杂因素的影响。土地出让相关收入分配比例的有效调节会对耕地资源的保护产生积极的作用,为遏制耕地资源非农化可针对不同类型土地收入制定适宜的分配主体和分配比例,避免多种土地出让收入征收的叠加失效和土地资源的浪费错配。

关键词：土地财政土地利用变化建设占用耕地 VEC模型 Granger因果检验

土地审批制度改革对建设占用耕地的影响——基于1995-2013年省级面板数据的实证研究

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资源科学 2016年第9期38卷 1692-1701页

作者：陈宇琼钟太洋南京大学地理与海洋科学学院南京210023

改革开放以来,用地审批制度逐步成为中国土地管理的重要制度和手段之一,土地审批制度也历经了多次改革。为分析土地审批制度变化对建设占用耕地的影响,本文梳理了中国土地审批制度的改革历程,选取1995-2013年省级面板数据进行实证分析... 详细信息

改革开放以来,用地审批制度逐步成为中国土地管理的重要制度和手段之一,土地审批制度也历经了多次改革。为分析土地审批制度变化对建设占用耕地的影响,本文梳理了中国土地审批制度的改革历程,选取1995-2013年省级面板数据进行实证分析。结果表明:审批建设占用耕地规模对建设占用耕地的影响具有滞后性,全国当年审批建设占用耕地面积每增加1hm^2能够显著引起当年及次年实际耕地被占用面积分别增加0.25hm2和0.36hm^2,即当年建设占用耕地1hm^2中约有0.25hm^2由当年审批用地所致、约有0.36hm^2为前一年审批用地所致、约0.4hm^2为其他年份审批以及违法占地等所导致;国务院审批土地比重的增加使得建设占用耕地面积显著减少,国务院审批面积比重每增加1%约能减少耕地占用面积2351hm^2;1999-2005年审批权限上收期比2006-2013年审批权限调整下放期在耕地保护的作用更为显著。建设用地审批权限的上收减缓了建设占用耕地速度,但后期的审批权限调整下放并未显著影响建设占用耕地。

关键词：土地审批制度改革建设占用耕地政策效应面板数据中国

外来职业农民和本地农户种植多样性差异及影响因素研究

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资源科学 2018年第9期40卷 1752-1761页

作者：闫梦露钟太洋南京大学地理与海洋科学学院南京210023

种植多样化是传统农户应对农业风险冲击的有效策略,而外来职业农民驱动下的农业转型发展可能会与本地农户种植多样性存在差异。为分析不同类型农户种植多样性差异及影响因素,本文利用2015年在江苏省南京市通过农户问卷调查获得的393份... 详细信息

种植多样化是传统农户应对农业风险冲击的有效策略,而外来职业农民驱动下的农业转型发展可能会与本地农户种植多样性存在差异。为分析不同类型农户种植多样性差异及影响因素,本文利用2015年在江苏省南京市通过农户问卷调查获得的393份有效样本数据,以农户种植作物种类数为指标测度种植多样性,采用Poisson(泊松)回归模型进行实证检验。结果表明:①不同类型农户种植多样性存在显著差异,在保持其他变量不变的情况下,外来职业农民的种植多样性比本地农户少17%;②种植面积是影响种植多样性的重要因素,种植面积每增加1hm2,种植多样性降低2.7%左右;③其它影响农户种植多样性的因素还包括农业生产决策者的年龄、农户地块总数和农户住地到主城区的距离:在保持其它变量不变的情况下,农业生产决策者的年龄每提高1岁,种植多样性提高0.9%左右;农户地块总数每增加1块,种植多样性提高4.6%左右;农户住地到主城区的距离每增加1km,种植多样性提高0.8%左右。

关键词：土地经济学外来职业农民 Poisson回归种植多样性