摘要
土地利用和生态系统服务价值变化对区域生态建设及可持续发展具有重要意义。以河北省黄骅市为研究区域,基于ENVI和ArcGIS软件平台,通过解译黄骅市1990年、2000年、2010年三期遥感影像图,分析了研究区土地类型及生态系统服务价值变化情况。结果表明:研究期间地类呈现"二增五减"的变化规律,园地、建设用地分别增加1 268.95,4 873.54hm2,耕地、草地、水域、盐碱地和未利用地均减少;土地生态系统服务价值构成中,耕地、水域和盐碱地3种土地生态类型贡献较大,土地生态系统总服务价值20a间减少了7 257.40万元。黄骅市土地生态类型变化对生态系统产生负面影响,生态环境质量降低。
The change of land use and ecosystem service value on regional ecological construction and sustain- able development is of great significance. This article interpreted remote sensing image of Huanghua City in 1990, 2000 and 1990 by ENVI and ArcGIS, and analyzed the changes of the land types and the values of eco- system services in the research area. The results showed that during the study period land types presented rules o{ two types of increasing and five types of decreasing. Garden lands increased in 1 268.95 hm2 and con- struction lands increased in 4 873.54 hm2. Cultivated land, grassland, water area, saline and unused land reduced. Cultivated land, water area and saline land had important contribution to land ecosystem service values. However, total land ecosystem service value reduced by 72. 574 million yuan. Land ecological type changes have the negative impact on the ecological system, and the ecological environmental quality is declining in Huanghua City.
出处
《水土保持研究》
CSCD
北大核心
2015年第3期236-240,共5页
Research of Soil and Water Conservation
基金
国土资源部公益性行业科研专项经费"环渤海盐碱土地景观整治与植物修复技术集成"(201311060)
河北省科技支撑计划"基于景观生态优化的河北省滨海盐碱土地整治研究"(132276329)
关键词
土地利用
生态服务价值
遥感
动态度模型
黄骅市
land use
ecosystem service value
remote sensing
dynamic model
Huanghua City
