中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 渭干河流域土地利用程度与生态系统服务价值的关系 湖北农业科学 2014,53 (2) 39-45
Position: Home > Articles > Relationships between Land Use Degree and Ecosystem Service Values in the Weigan River Basin Hubei Agricultural Sciences 2014,53 (2) 39-45

渭干河流域土地利用程度与生态系统服务价值的关系

作  者：
杨永菊;乔旭宁;唐宏;乔旭明;聂小军;王锐
单  位：
四川农业大学四川省农村发展研究中心;河南理工大学测绘与国土信息工程学院;河南省统计局普查中心
关键词：
土地利用程度;生态系统服务价值;时空变化;动态度;渭干河流域
摘  要：
基于1990、2000、2008年3个时期遥感影像数据,估算了渭干河流域不同时期的土地利用程度与生态系统服务价值,并利用ArcGIS空间分析功能对其空间特征与动态变化进行分析,探讨二者的相互关系。结果表明,①流域未利用地面积较大导致土地利用程度较低。1990~2008年流域平均土地利用程度综合指数为0.331 5,上、中、下游依次升高,该指数总体呈增长趋势,年均增长0.23%,变化动态度由大到小依次为下游、中游和上游。②1990、2000和2008年流域总生态系统服务价值分别为2 722 484万、2 709 389万和2 662 851万元,总体有所下降,林地、草地、沼泽面积的减少是其主要原因。下游未利用地面积小、林地比重较大,其单位面积生态系统服务价值为流域最高。研究期间上游生态系统服务价值略有增加,下游降幅较大。③生态系统服务价值随土地利用程度的加剧先增后减,增长期主要由于未利用地比重减小,减少期则表现为建设用地比重的增大,生态系统服务价值增加区域主要分布在流域上、中游,减少区域则中游略多于上游和下游。
译  名：
Relationships between Land Use Degree and Ecosystem Service Values in the Weigan River Basin
作  者：
YANG Yong-ju;QIAO Xu-ning;TANG Hong;QIAO Xu-ming;NIE Xiao-jun;WANG Rui;School of Surveying and Land Information Engineering, Henan Polytechnic University;Xinjiang Institute of Ecology and Geography, CAS;Rural Development Research Center of Sichuan Province,Sichuan Agricultural University;Center of Survey,Henan Bureau of Statistics;
关键词：
land use degree;;ecosystem service values;;spatial-temporal change;;dynamic degree index;;Weigan river basin
摘  要：
Based on the remote sensing images of 1990, 2000 and 2008, the land use degree and ecosystem services value of the Weigan River Basin was calculated, and the temporal and spatial variation and relationship in 1990-2008 was analyzed by the module of spatial analysis in ArcGIS. The results showed that the average composite index of land use degree in 1990~2008 was 0.331 5, increasing from 1990 to 2008 with an average growth rate of 0.23%. The lower index was because of the larger area of unused land. The average composite index was higher in downstream and lower in upper stream. Dynamic degree index was on the same trend. The total value of ecosystem services of area studied in 1990, 2000 and 2008 were 272.248 4×108yuan, 270.938 9×108yuan and 266.285 1×108yuan which showed a trend of decline. The main reasons were the reducing of forest land, meadowland and wetland area. The value of ecosystem services per unit area in downstream was more than that of upper stream and middle reaches because of the larger forest land area and smaller unused land area. The ecosystem services value in upper stream increased slightly and downstream showed a larger decline. With the increase of land use degree, the ecosystem services value increased first and then decreased. The growth period was mainly due to the decline in proportion of unused land area, and the increasing in proportion of construction land area was the main reason in decline period. The spatial difference in change of land use degree was insignificant. The regions with increasing ecosystem services value were mainly located at upper stream and middle reaches, while the regions with reducing ecosystem services value in middle reaches was more than that of upper stream and downstream.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46