| 摘要: |
| 以遥感影像目视解译的齐齐哈尔市1990、2001和2015年土地利用数据为支撑，核算齐齐哈尔各县市的土地生态系统服务价值量，探究25年间其时空分异规律，基于土地资源供求关系的研究结合生态服务价值探究齐齐哈尔市土地利用生态可持续程度。结果表明：25年间齐齐哈尔市土地生态系统服务价值在选取的时点上呈下降趋势，主要归因于湿地减少及水体面积的锐减；空间上主要呈现价值总量西南高、东北低的总体空间分布；土地利用生态可持续程度略高于临界值，属于可持续程度较强的状态；应保护湿地和水域数量，维持林地规模的优势。该成果可以为齐齐哈尔生态可持续发展提供科学依据和决策支持。 |
| 关键词: 土地利用 生态服务价值 时空变化 生态可持续 |
| DOI：10.11841/j.issn.1007-4333.2018.02.14 |
| 投稿时间：2017-04-26 |
| 基金项目:黑龙江省自然科学基金项目（D201401）；东北农业大学博士启动基金（2012RCB67） |
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| Spatio-temporal changes of land ecosystem service value in Qiqihar |
|
YANG Fenghai, ZHAO Yerong, SONG Jiajia, HE Xuan, LIU Yan, CAO Bin
|
| (School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China) |
| Abstract: |
| Based on remote sensing images visual interpretation of land use vector data of Qiqihar from 1990 to 2015,the ecosystem services value (ESV) of the study area was accounted and to analyze its spatio-temporal changes were analyzed in this study.The results showed that:The ecosystem services value in Qiqihar displayed an overall decline trend due to a sharp decrease in water area and wet land area;The spatial distribution of ESV revealed high total value in the southwest and low total value in the northeast;Moreover, the degree of land ecological sustainability belonged to a little stronger sustainability;we should protect The present wet land and water area should be protected to maintain the advantage of forest area.In summary,this study provided foundation for the ecological sustainable development in Qiqihar. |
| Key words: land use ecosystem services value spatio-temporal changes ecological sustainability |
