XIONG Lüying,SHI Xueyi.Effects of Land Use Change on Ecosystem Service Value in the Loess Hilly Area—A Case Study of the Changhe River Basin[J].Research of Soil and Water Conservation,2018,25(02):335-340.
黄土山丘区土地利用变化对生态系统服务价值的影响——以长河流域为例
- Title:
- Effects of Land Use Change on Ecosystem Service Value in the Loess Hilly Area—A Case Study of the Changhe River Basin
- Keywords:
- River Basin; land use change; ecosystem services value
- 分类号:
- F301.2;X171
- 摘要:
- 以长河流域2005年、2010年、2015年的遥感解译数据为基础，采用数学模型分析了土地利用变化特征，然后根据生态系统服务价值的估算模型，定量分析了长河流域土地利用变化对生态系统服务价值的影响。结果表明：（1）2005-2015年，耕地逐渐减少，建设用地逐渐增加，林地、草地、水域先增后减；耕地主要向草地、建设用地转移，建设用地的增加主要来自耕地、草地的转移。（2）2005-2015年长河流域土地利用变化的生态服务总价值一直减少，其生态服务价值由2005年的3 509万元减少到2015年的3 485万元，减少了24万元；水源涵养、娱乐文化、原材料单项功能生态服务价值有所增加，其他6项单价功能生态服务价值减少；长河流域所采用的价值系数缺乏弹性，适合长河流域的实际情况，其生态服务价值估算结果可信。（3）2005-2015年长河流域土地利用类型变化带来的生态系统服务价值的持续减少，2005-2010年净减少了6.28万元，2010-2015年净减少了19.38万元。
- Abstract:
- We analyzed the characteristics of land use change by using mathematical model on the basis of the remote sensing data of the Changhe River Basin from 2005 to 2015, then, according to ecosystem services value evaluation model, we quantitatively analyzed the impact of land use type on ecosystem services value in the Changhe River Basin. The results showed that:(1) from 2005 to 2015, the area of cultivated land decreased gradually, while construction land increased gradually, woodland, grassland, water area increased first and then decreased; cultivated land was mainly turned into grassland and construction land, construction land expansion was mainly from cultivated land and grassland. (2) The total value of ecological services of land use change in the Changhe River Basin decreased from 2005 to 2015, and its ecological service value decreased from 3.509×107 yuan in 2005 to 3.485×107 yuan in 2015,or reduced 2.4×105 yuan; the ecosystem service value of water conservation, entertainment culture and raw materials increased, the other six functions of ecosystem service value reduced; the value coefficient of the Changhe River Basin is not elastic, which is suitable for the actual situation of the Changhe River Basin, the estimation value of the ecological service value is credible. (3) The ecosystem service values brought about by the change of land use type in the Changhe River Basin between 2005 and 2015 decreased, which decreased by 6.28×104 yuan from 2005 to 2010, and the net decrease was 1.938×105 from 2010 to 2015.
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备注/Memo
收稿日期:2017-5-24;改回日期:2017-6-24。
基金项目:国土资源部公益性行业科研专项经费课题“北方村庄压煤山丘区土地综合整治技术研究”（201411007）
作者简介:熊侣英(1992-),女,江西丰城人,硕士研究生,研究方向为土地资源评价与土地利用规划。E-mail:1772048362@qq.com
通讯作者:师学义(1960-),男,山西祁县人,博士,教授,主要从事土地利用规划与土地利用工程研究。E-mail:shixueyi63@163.com