期刊论文

Regional differences and dynamic evolution of cultivated land pressure in Hubei Province

中文

农业工程学报

1002-6819

2019

35

23

266-272

10.11975/j.issn.1002-6819.2019.23.033

71673096:国家自然科学基金 41801205:国家自然科学基金 19YJC790054:教育部人文社会科学研究项目 2018M642882:中国博士后科学基金

本校为第一机构

为充分认识湖北省耕地压力区域差异、动态演进规律,以保障湖北省的粮食安全,该文用修正耕地压力指数测度湖北省及其17个城市耕地压力大小,从时序和空间两方面分析湖北省区域内耕地压力变动差异,并利用核密度估计方法分析湖北省区域内耕地压力演变规律。结果表明:1)2000-2016年,湖北省平均耕地压力为警报压力,区域内人均所需最小耕地面积与实际人均供给面积差距较小,能够实现湖北省区域内粮食安全有效供给。2)2000-2016年,湖北省区域内耕地压力变化不一,其中鄂东区域耕地压力最大,鄂中区域耕地压力最低。3)耕地压力的总体水平在2000-2016年间逐渐减小,但是地区差距也不断加剧,极化现象十分明显。...

In order to fully research the regional differences and dynamic evolution of cultivated land pressure to ensure food security in Hubei Province, the revised cultivated land pressure index was used to measure the pressure of cultivated land in Hubei Province and its 17 cities. The difference of cultivated land pressure variation in Hubei Province from time series and spatial level was analyzed. The kernel density estimation method was used to describe the dynamic evolution of cultivated land pressure. The results showed that: 1) During the perio...