检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:史文娇[1,2] 丁锐 崔佳莹 石晓丽 Shi,W.J.;Ding,R.;Cui,J.Y.;Shi,X.L.(Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China;School of Geographical Sciences,Hebei Normal University,Hebei Key Laboratory of Environmental Change and Ecological Construction,Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change,Hebei,Shijiazhuang 050024,China)
机构地区:[1]中国科学院地理科学与资源研究所,中国科学院陆地表层格局与模拟院重点实验室,北京100101 [2]中国科学院大学资源与环境学院,北京100049 [3]河北师范大学地理科学学院,河北省环境演变与生态建设实验室,河北省环境变化遥感识别技术创新中心,石家庄050024
出 处:《全球变化数据学报(中英文)》2022年第3期402-408,V0402-V0408,共14页Journal of Global Change Data & Discovery
基 金:中国科学院(XDA20040301,XDA20010202,XDA23100202)。
摘 要:青藏高原粮食供需安全关系到边区稳定,是区域可持续发展的重要基础。本数据集基于1985-2016年青藏高原及其毗邻地区统计数据,采用粮食自给率和供需缺口两个指标,分析了青藏高原区域、省级和县级三个尺度的粮食供需时空格局及其变化特征。结果表明1985-2016年青藏高原粮食自给能力呈上升趋势,但粮食供需平衡状况在空间分布上差异较大。数据集包括:(1)青藏高原及其毗邻地区整体1989-2016年粮食产量、消费量、自给率、供需缺口变化以及1985-2016年城镇和农村人均粮食消费量变化;(2)各时段(1985-1989年、1990-1999年、2000-2009年、2010-2016年)青藏高原及其毗邻地区各省粮食产量、消费量、自给率、供需缺口变化;(3)各县区粮食产量、消费量、自给率、供需缺口现状(2010-2016年平均值)。数据集存储为.xlsx和.shp格式,由8个数据文件组成,数据量为20.3 MB(压缩为1个文件,6.58 MB)。The security of grain supply and demand on the Tibetan Plateau is related to the stability of the border region and is an important foundation for regional sustainable development.Based on the statistical data from 1985 to 2016,the grain self-sufficiency rate and supply-demand gap were used to analyze the spatial and temporal patterns of grain supply and demand at regional,provincial,and county scales on the Tibetan Plateau and its adjacent area.The results showed that the grain self-sufficiency of the Tibetan Plateau showed an upward trend from 1985 to 2016,but the spatial distribution of the balance of grain supply and demand was quite different.The dataset includes:(1)annual capacity for grain self-sufficiency on the Tibetan Plateau and its adjacent area during 1985-2016;(2)capacity for grain self-sufficiency in each province of the Tibetan Plateau in different periods from 1985 to 2016;(3)average capacities for grain self-sufficiency at the county level on the Tibetan Plateau and its adjacent area from 2010 to 2016.The dataset is archived in.xlsx and.shp data formats,and consists of 8 data files with data size of 20.3 MB(compressed into one single data file with 6.58 MB).
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.63