农业现代化研究2017，Vol.38Issue(4)：728-736,9.DOI:10.13872/j.1000-0275.2017.0070
东北地区水田分布格局的时空变化分析
Spatial-temporal patterns of paddy field change in Northeast China
摘要
Abstract
Northeast China is an important grain base for China, especially for rice varieties, like japonica rice. Based on the spatial data of paddy field from 2000 to 2015 and the data of main rivers in Northeast China and applying the GIS spatial model and mathematical statistics method, this paper analyzed the spatial-temporal patterns of paddy field change in Northeast China to provide some basic support for the utilization and management of cultivated land resources and research of agricultural modernization. Main results show that: 1) paddy field of Northeast China are mainly located in the three northeastern plains, including Shenyang, Changchun and Harbin and regions along the rivers. The paddy field in Northeast China increased from 4.1915 million hm2 in 2000 to 6.0349 million hm2 in 2015, increased by 1.8434 million hm2 with an average annual growth rate of 2.93%; 2) the average annual change rates of paddy field in Liaoning, Jilin, and Heilongjiang were -1.06%, 0.11% and 6.04%, respectively and the relative change degree of paddy field in Liaoning, Jilin and Heilongjiang were 0.36, 0.04 and 2.06, respectively. The variation range of paddy field in Heilongjiang Province is higher than that in Northeast China. In recent 15 years, the gravity center of paddy field in Northeast China moved from Changchun City to Harbin City, with a moving distance of 159.92 km and an average moving speed of 10.66 km/a; and 3) the area change of paddy field decreased with the increasing distance to rivers and the advantage paddy field is located at about 35 to 45 km from the rivers. In addition, differences of paddy field changes exist because of different characteristics of rivers and regions.关键词
水田/时空格局/区域差异/河流分异特征/东北地区Key words
paddy field/spatial-temporal pattern/regional difference/different characteristics of rivers/Northeast China分类
管理科学引用本文复制引用
杜国明,春香,于凤荣,张燕,赵雅倩,关桐桐..东北地区水田分布格局的时空变化分析[J].农业现代化研究,2017,38(4):728-736,9.基金项目
国家自然科学基金项目(41571167) （41571167）
黑龙江省自然科学基金项目(D201401).National Natural Science Foundation of China (41571167) （D201401）
Provincial Natural Science Foundation Project of Heilongjiang Province(D201401). （D201401）
