期刊文献+
共找到8篇文章
< 1 >
每页显示 20 50 100
“新农人”对大城市郊区农业生态化的影响:以南京市为例
1
作者 刘敏 钟太洋 《现代城市研究》 北大核心 2022年第11期20-26,共7页
近年来,随着互联网电商平台的快速发展以及鼓励市民下乡等农民培育政策的大力支持,大城市郊区的新农人越来越多,推动了农业发展转型。不同类型农民对决策的偏好不同,新农人已经被认为是坚持运用生态原理务农的农民群体。然而,人们对新... 近年来,随着互联网电商平台的快速发展以及鼓励市民下乡等农民培育政策的大力支持,大城市郊区的新农人越来越多,推动了农业发展转型。不同类型农民对决策的偏好不同,新农人已经被认为是坚持运用生态原理务农的农民群体。然而,人们对新农人如何影响农业生态化的实证研究较少。因此,论文收集了农民采用不同种养行为的情况,并采用样本选择模型来探究新农人对农业生态化的影响。结果表明,新农人和传统农民对农业生态化的影响有显著的差异;新农人种养行为的生态化程度相对更高;新农人对采取不同生态化种养行为、提高种养行为的生态化程度都有显著积极的影响。农业生态化的差异可能是由农民对农业生态化生产的认知、对不同生态化种养行为的偏好和农业生产目标的差异造成。 展开更多
关键词 新农人 生态化种养行为 Heckman样本选择模型 南京市
下载PDF
河长制下江苏省实施河湖流域化管理的改革建议
2
作者 黄贤金 钟太洋 陈昌仁 《江苏水利》 2019年第8期63-65,共3页
水治理体系与治理能力现代化是生态文明建设以及国家治理现代化建设的重要内容。江苏在水治理体系与治理能力现代化方面始终走在全国前列,但随着生态文明建设的推进,河湖功能呈现多元化、生态化的发展趋势,现有河湖管理体制机制难以适... 水治理体系与治理能力现代化是生态文明建设以及国家治理现代化建设的重要内容。江苏在水治理体系与治理能力现代化方面始终走在全国前列,但随着生态文明建设的推进,河湖功能呈现多元化、生态化的发展趋势,现有河湖管理体制机制难以适应新时期的发展要求。在分析江苏省河湖管理存在问题的基础上,结合中央和省级政府的具体要求,从管理体制、河湖资源管理方式、考核督察机制、预警及信息共享机制、联合执法机制5个维度提出江苏河湖流域化管理体制机制完善建议。 展开更多
关键词 河长制 流域化管理 江苏
下载PDF
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 被引量:15
3
作者 LU Xiao HUANG Xianjin +3 位作者 zhong taiyang ZHAO Xiaofeng CHEN Yingxue GUO Shuiqiong 《Chinese Geographical Science》 SCIE CSCD 2012年第5期556-567,共12页
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 model.Suyu District of Suqian City and Taixin... 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 model.Suyu District of Suqian City and Taixing City of Jiansu Province,China were chosen as the regions for comparison.The 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 City.The 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 households.However,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 condition.And these policies should decrease land fragmentation to promote scale management of land and arable land use intensification. 展开更多
关键词 arable land use intensity (ALUI) labor intensity yield-increasing input labor-saving input comparativeanalysis farm household
下载PDF
Impact of Labor Transfer on Agricultural Land Use Conversion at Rural Household Level Based on Logit Model 被引量:9
4
作者 zhong taiyang ZHANG Xiuying HUANG Xianjin 《Chinese Geographical Science》 SCIE CSCD 2008年第4期300-307,共8页
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 ... 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. 展开更多
关键词 labor force transfer agricultural land use conversion rural household Logit model Jiangsu Province China
下载PDF
Carbon Emission of Regional Land Use and Its Decomposition Analysis: Case Study of Nanjing City, China 被引量:11
5
作者 ZHAO Rongqin HUANG Xianjin +3 位作者 LIU Ying zhong taiyang DING Minglei CHUAI Xiaowei 《Chinese Geographical Science》 SCIE CSCD 2015年第2期198-212,共15页
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 carb... 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. 展开更多
关键词 carbon emission land use intensity Logarithmic Mean Divisia Index(LMDI) model decomposition analysis Nanjing City
下载PDF
Comprehensive Assessment of Regional Circular Economy Development Based on Efficiency of Resource&Environment:A Case Study of Jiangsu Province 被引量:2
6
作者 zhong taiyang Huang Xianjin +1 位作者 Li Lulu Wang Chen 《Chinese Journal of Population,Resources and Environment》 北大核心 2006年第1期54-64,共11页
In the first,the paper gave a retrospective analysis on the comprehensive assessment of circular economic development.According to the requirement of improving resource&environment efficiency,the paper designed an... In the first,the paper gave a retrospective analysis on the comprehensive assessment of circular economic development.According 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 development.Given 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 on.According to the framework of regional circular economic development evaluation,the paper made a comprehensive evaluation of Jiangsu Province's circular economic development.The 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 number.There was a remarkable correlation between circular economic development level and GDP or the 2nd industry GDP.Finally,the?aper gives some suggestions on how to promote the development of drcular economy in Jiangsu Province. 展开更多
关键词 efficiency of resource&environment omprehensive assessment of circular economic ievelopment sustainable development Jiangsu province
下载PDF
Carbon footprint of different industrial spaces based on energy consumption in China 被引量:28
7
作者 ZHAO Rongqin HUANG Xianjin +1 位作者 zhong taiyang PENG Jiawen 《Journal of Geographical Sciences》 SCIE CSCD 2011年第2期285-300,共16页
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 fos... 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 per unit area carbon footprint of different industrial spaces all presented a declining trend from east to west of China. 展开更多
关键词 industrial space carbon footprint carbon emission intensity energy consumption China
原文传递
Urban carbon footprint and carbon cycle pressure: The case study of Nanjing 被引量:6
8
作者 ZHAO Rongqin HUANG Xianjin +3 位作者 LIU Ying zhong taiyang DING Minglei CHUAI Xiaowei 《Journal of Geographical Sciences》 SCIE CSCD 2014年第1期159-176,共18页
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 carbo... 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. 展开更多
关键词 carbon footprint carbon cycle pressure LMDI NANJING
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部