摘要
研究基于2016年陕西省县级耕地质量等别数据,采用标准粮为研究指标,分析了关中地区耕地质量现状及标准粮单产与产能,以期为关中地区耕地资源保护与粮食安全保障提供理论支持。研究结果表明:关中地区耕地质量等别分布在4~14等,以7~13等耕地为主,耕地质量综合等别为9.72等;关中地区耕地标准粮平均单产为9 084.88 kg·hm-2,在标准粮产能方面,7等和8等地较高,4等和14等较少;总体来看,关中地区粮食产能要大于粮食需求,随着人口的增加,粮食生产依然足以满足粮食需求,但是存在明显的区域差异。
Based on the data of county-level cultivated land quality grade in Shaanxi province in 2016,the study adopted standard grain as the research index to analyze the current situation of cultivated land quality as well as the standard grain yield and production per hectare in Guanzhong area,hoping to provide theoretical support for the protection of cultivated land resources and food security in Guanzhong area.The results showed:The cultivated land quality in Guanzhong area ranges from 4 to 14 and cultivated land is mainly concentrated in 7 to 13.The average quality grade of cultivated land is 9.72.The average standard grain production per hectare of cultivated land in Guanzhong area is 9084.88 kg·hm-2.In terms of standard grain yield,grade 7 and grade 8 are higher,while grade 4 and grade 14 are less.In general,the grain yield in Guanzhong area is larger than the grain demand.With the increase of population,the grain production is still enough to meet the grain demand,but there are obvious regional differences.
作者
王达
杨慧
王同达
WANG Da;YANG Hui;WANG Tongda(School of Earth Science and Resources,Chang'an University,Xi'an 710054,China;Shaanxi Key Laboratory of Land Consolidation,Xi'an 710054,China)
关键词
耕地质量等别
标准粮
粮食产能
粮食安全
关中地区
cultivated land grade
standard grain
grain yield
food security
Guanzhong area
