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河北省耕地图谱特征及其生态服务价值变化

标题: 河北省耕地图谱特征及其生态服务价值变化
英文标题: Characteristics of Cultivated Land Map and the Change of Its Ecological Service Value in Hebei Province
作者: 郝娜,王晓晴,王耀,张迪,牛志君,齐跃普
出版时间: 2018-07-06
机构: 秦皇岛市国土资源局,河北农业大学,石家庄师兄弟土地环境技术服务有限公司
关键词: 耕地,图谱特征,生态服务价值,河北省
刊名: 水土保持研究
英文刊名: Research of Soil and Water Conservation
ISSN: 1005-3409
期号: 06
国内刊号: 61-1272/P
基金: 国土资源部公益性行业科研专项经费项目(201311060); 河北省科技支撑计划项目(132276329)
主题: 河北省耕地图谱特征及其生态服务价值变化
页码: 281-287
分类号: F301.21
出版单位: 水土保持研究
数据来源: cnki
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摘要: 为了响应耕地"数量—质量—生态"统筹发展的号召,以河北省为例,运用ArcGIS 10.2,从耕地图谱特征变化的角度出发,分别对前期变化型、后期变化型、反复变化型以及持续变化型4个模式下的耕地生态服务价值变化情况进行了研究分析。结果表明:2004—2016年期间,研究区内耕地面积共增加了4 331 555.45hm~2,且生态服务价值保持上升状态,共增加287.71亿元。前期变化型主要以"耕地—草地—草地"类型为主,其生态服务价值增加38 599.78万元;后期变化型主要以"耕地—耕地—草地"类型为主,是整个变化模式中最大的单体变化类型,生态服务价值增加了85 651.01万元;反复变化型主要以"耕地—草地—耕地"的变化类型为主,其生态服务价值也是此变化类型中增加最多的;持续变化型模式主要以"耕地—园地—草地"模式为主,耕地转向园地生态服务价值增加了40 044.61万元,园地转向草地减少了5 585.61万元。研究表明河北省耕地生态服务价值总体上呈增加趋势,与园地、草地之间的转换有着密切的关系。
英文摘要: In order to respond to the call of‘quantity—quality—ecology'for the development of cultivated land,this paper takes Hebei Province as an example,using ArcGIS 10.2 from the perspective of cultivated land mapping characteristics change,such as early change,late change,repeated change and persistence changes of ecosystem services value in cultivated land under four patterns of change.The results showed that the cultivated area increased by 4 331 555.45 hm~2 in the study area from 2004 to 2016,and the value of ecological service was increased by 28.771 billion yuan.The main changes were mainly‘cultivated land—grassland-grassland',where ecosystem services value increased 385.997 8 million yuan.The main type of later change is‘cultivated land—cultivated land—grassland',which is the largest type of monomer change in the whole change pattern,and the ecosystem services value is increased by 856.510 1 million yuan.The change type of repeatedly changes mainly focuses on the change type of ‘cultivated land—grassland—cultivated land',and the ecosystem services value is the largest increase in the type of change.The pattern of continuous change is mainly based on the model of‘cultivated land—gardenland—grassland',the cultivated land turning to garden ecosystem services value increased by 400.446 1 million yuan,and the garden land turned to grassland ecosystem services value decreased by 55.856 1 million yuan.The results show that the ecosystem services value of cultivated land in Hebei Province is on the increase,which is closely related to the con-version between the garden and the grassland.