叶尔羌河流域土地覆被生态服务价值变化分析  

Analysis on the Change of Land Use/Cover Ecological Service Value in Yarkand River Basin

作　　者：张雪琪[1] 满苏尔.沙比提 马国飞[1] ZHANG Xueqi;Mansur· Shabiti;MA Guofei(School of Geographic Science and Tourism, Xinjiang Normal University, Urumqi 830054, Chin)

机构地区：[1]新疆师范大学地理科学与旅游学院,新疆乌鲁木齐830054

出　　处：《环境科学与技术》2018年第6期152-160,共9页Environmental Science & Technology

基　　金：国家自然科学基金项目(41661100)

摘　　要：文章参照中国陆地生态系统服务价值当量,结合叶尔羌河流域土地利用/覆被类型特征,分析研究区土地利用/覆被类型及生态服务价值变化。结果表明:(1)在1996-2015年,叶尔羌河流域土地利用/覆被发生了较大的变化,农田和建设用地面积明显增加,增长率分别为7.73%和35.88%;湿地和未利用地面积明显减小,减小率分别为2.89%和0.68%;林地、草地和水体面积基本没有变化。(2)研究区的生态服务价值为13.48×10~8元/a,体现了潜在的生态地位。在9项生态服务功能中水文调节(25.91%)和废物处理(22.75%)生态服务功能价值较高,食物(1.79%)和原料生产(2.92%)生态服务功能价值较低。(3)在研究期间生态服务总价值量增加2.24×10~8元/a,增长率为0.17%,这主要是由农田面积增加所引起;在9项生态服务功能价值中粮食生产功能(1.53%)和原料生产功能(0.29%)价值增长较高,这也是与食物和原材料生产生态服务价值系数较高的农田面积增加有关系。在价格比例上1996-2015年间未发生较大的变化。The land use/cover type and the value of ecological service in the study area are analyzed according to the land use/cover type characteristics of the Yarkand River Basin, taking into account the value equivalent of land ecosystem services in China. The results showed that land use/cover was changed in the Yarkand River basin from 1996 to 2015, and the area of farmland and construction land increased obviously with the growth rates of 7.73% and 35.88%, respectively. The wetland and unused land area decreased significantly, with the reduction rate as 2.89% and 0.68%. Forest land, grassland and water area remained unchanged. The ecological service value of the study area was 13.48×10^8 yuan/a, which reflects the potential ecological status. In the nine ecological service functions, the hydrological regulation（25.91%） and the waste treatment（22.75%）had higher ecological service function, and the value of ecological service was lower in food（1.79%） and raw material production（2.92%）. During the study period, the total value of ecological services increased by 2.24×10^8 yuan/a, the growth rate was 0.17%, which was mainly caused by the increase of farmland area. In the nine ecological service function, the grain production function（1.53%） and value of raw material production（0.29%） was higher, which was also related to the increase in the area of farmland with higher value of food and raw material production. In the proportion of the price of 1996 to 2015, no major changes occurred.

关 键 词：土地利用/覆被 生态服务价值 变化特征 叶尔羌河流域 

分 类 号：X826[环境科学与工程—环境工程]