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作 者:杜国明[1] 张继心[1] 于凤荣[2] 孙晓兵[1] 春香[1]
机构地区:[1]东北农业大学资源与环境学院,黑龙江哈尔滨150030 [2]黑龙江省农垦科学院科技情报研究所,黑龙江哈尔滨150040
出 处:《农业现代化研究》2016年第4期794-801,共8页Research of Agricultural Modernization
基 金:国家自然科学基金项目(41571167);黑龙江省自然科学基金项目(D201401)~~
摘 要:土地整治是提高土地质量、实现土地资源高效利用的重要手段,也是确保耕地资源动态平衡的关键。本文以黑龙江省2000-2013年实施的土地整治项目为基础数据,以县域为基本单元,采用耕地整治率、地理集中度、基尼系数及变异系数,对其土地整治项目及新增耕地空间分布特征进行分析。主要结论如下:1)2000-2013年,黑龙江省土地整治项目数量和规模均呈现波动增长的态势,项目类型逐渐单一化;2)2000-2013年黑龙江省耕地整治率为9.06%,耕地整治率和整治项目数量分布均呈现两大平原地区高于大小兴安岭和张广才老爷岭地区的态势;3)2000-2013年黑龙江省土地整治新增耕地在时间上呈波动增加态势,在空间分布上呈现先分散再聚集于两大平原区域的变化特征,新增耕地率总体呈下降趋势;4)建议黑龙江省土地整治工作应继续以土地整理类项目(高标准农田建设)为重点,合理确定土地整治项目类型和目标,大力推动各地区土地整治工作协同发展,切实提升耕地整治率。Land reclamation plays an important role in improving land quality and realizing the efifcient utilization of land resources and it is also critical for keeping dynamic equilibrium of the total amount of cultivated land. Based on the data of land reclamation programs being promoted during 2000-2013 in Heilongjiang Province, and using the land reclamation rate, geographic concentration, Gini-coefficient and variation coefficient, this paper analyzed the land reclamation projects and distribution characteristics of the newly increased cultivated land. Results show that:1) during 2000-2013, the number and the scale of projects of land reclamation ware increasing with some lfuctuations and moving to one direction gradually;2) the renovation rate of Heilongjiang Province in 2000-2013 was 9.06%. On spatial distribution, Sanjiang Plain and Songnen Plain had more land reclamation projects and higher renovate rate than those in Daxing’an Mountains, Xiaoxing’an Mountains and Zhang Guangcai mountain areas;and 3) the newly increased cultivated reclamation land in Heilongjiang Province have increased with some fluctuations, the spatial distribution of them had dispersed first and then aggregated in Sanjiang Plain and Songnen Plain areas. The newly-increased reclamation rate have decreased gradually. To improve the rate of arable land consolidation effectively, we should focus on land consolidation (high standards of farmland construction) projects continuously, to determine the type and target of land remediation projects reasonably and to promote coordinated development of land remediation work in each region vigorously in Heilongjiang Province.
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