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“农村土地资源多功能利用创新引智基地”引智专家学术报告
发布时间:2019-05-13    点击次数:397

报告人:Dr. Zhanli Sun(德国莱布尼兹转型经济农业发展研究所(IAMO)高级研究员)

报告题目:The spatial dynamics of China’s crop lands and its determinants from 1980-2011

报告时间:2019年5月16日(周四),上午10:00

报告地点:逸夫楼7021

报告内容摘要:

Since the rural reform started in 1979, China’s agricultural land system has experienced fundamental changes in land use intensity, spatial configuration pattern, and land tenure settings. Firstly, the spatial configuration of China’s cropland and major crops were analysed. Specifically, we used annual agricultural statistics at the county level from 1980 to 2011 for all of China to analyse the changes in spatial clustering and inequality of overall cropland and of the harvested areas of the five major crops (rice, maize, wheat, soybean, and potato). After that, we used spatial panel regressions to quantify the determinants of the observed changes cultivated areas for the major cultivation centres of the five crops. The results showed that the cropland area and harvested areas of the major crops indeed became more homogeneous over time. Higher population was associated with more areas dedicated to these crops while GDP growth and increasing road density negatively affected the extent of the harvested areas, arguably mirroring the rapid urbanization and economic development. Overall, increasing concentration may offer opportunities in specialization and positive agglomeration effects but can reduce the resilience of food systems and agricultural sustainability due to increasing reliance on fewer crops and fewer places of production.

报告人简历:

Dr. Zhanli Sun 于1999年获得中国科学院地理学博士学位,2000年至2006年任职于美国伊利诺伊大学香槟分校(University of Illinois Urbana-Champaign),2008年至今为德国莱布尼兹转型经济农业发展研究所(IAMO)高级研究员,并担任中国国际研究组协调联络人。孙战利研究员主要从事土地系统及其变迁方面的研究,在复杂系统理论基础上,利用Agent模型、空间计量经济、贝叶斯网络等多种技术方法对中国、东南亚、阿根廷等国家或地区的土地系统变迁、土地利用决策过程进行分析。目前孙战利研究员在NatureGlobal Environmental ChangeLand Use PolicyEnvironmental Modelling & Software 等知名学术期刊发表学术论文50余篇,论文被引次数达到2100余次,H-index(高引用次数指数)达到17。


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