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 > 不同时空尺度下流域景观格局与水质的相关性研究——以嫩江右岸典型子流域为例 水土保持通报 2011,31 (5) 254-258+263
Position: Home > Articles > Correlation Between Landscape Pattern and River Water Quality at Various Temporal and Spatial Scales——A Case Study of Typical Sub-watersheds of Nenjiang River Right Bank Bulletin of Soil and Water Conservation 2011,31 (5) 254-258+263

不同时空尺度下流域景观格局与水质的相关性研究——以嫩江右岸典型子流域为例

作  者：
于磊;赵彦伟;汪思慧;田竹君
单  位：
水环境模拟与污染控制国家重点实验室北京师范大学环境学院松辽流域水资源保护局;中国科学院东北地理与农业生态研究所;北京师范大学环境学院;水环境模拟与污染控制国家重点实验室北京师范大学环境学院
关键词：
时空尺度;流域景观格局;水质;相关性分析;嫩江
摘  要：
流域景观格局与水质的相关关系依赖于研究的时空尺度,区分时空尺度的研究有助于为流域水陆一体化管理提供准确依据。以嫩江右岸典型子流域为例,从亚流域、河流廊道2个空间尺度,丰水和枯水期2个时间尺度,研究了景观格局与河流水质的相关关系,分析了相关关系的时空差异。空间尺度上的研究结果表明:(1)亚流域尺度上与水质指标相关性显著的景观指标个数较河流廊道尺度多;(2)随尺度增大,NO3—N,综合污染指数与林地景观百分比的负相关性先增后减,400m处负相关性最强;TDS,NH4—N,NO3—N,综合污染指数与耕地景观百分比的正相关性先增后减,300m处正相关性最强,300～400m是嫩江支流廊道管理的关键区域。时间尺度上的研究结果表明,丰水期与水质指标显著相关的景观指数个数较枯水期多;丰水期林地、草地和耕地景观与水质指标的相关性强,而枯水期建设用地景观与水质指标的相关性强。
译  名：
Correlation Between Landscape Pattern and River Water Quality at Various Temporal and Spatial Scales——A Case Study of Typical Sub-watersheds of Nenjiang River Right Bank
作  者：
YU Lei1,ZHAO Yan-wei1,WANG Si-hui1,TIAN Zhu-jun2(1.State Key Laboratory of Environmental Simulation and Pollution Control;School of Environment,Beijing Normal University, Beijing 100875,China;2.Songliao River Basin Water Resources Protection Bureau,Changchun,Jilin 130021,China)
关键词：
temporal and spatial scales;watershed landscape pattern;water quality;correlation analysis;Nenjiang river
摘  要：
The correlation between watershed landscape pattern and water quality depends upon the temporal and spatial scales.The study addressing different spatio-temporal scales could provide a clear basis for integrated management of land and water.Typical sub-watersheds of Nenjiang river were chosen as study sites,and the correlation between landscape pattern and river water quality was studied at the scales of sub-basin and riparian,wet and dry season,then the temporal and spatial difference in correlation was analyzed.The results of spatial scale analysis indicate that,more landscape indices correlated significantly with water quality indices at the sub-basin scale than at the riparian scale.Along with increase of spatial scale,the negative relationship of NO3—N and integrated pollution index with the forest percentage declined after initial increasing,and this negative relationship reached its strongest at the 400 m buffer.While the positive correlation of TDS,NH4—N,NO3—N,integrated pollution index with the farmland percentage also decreased after initial increasing along with increase of spatial scale,and the strongest relationship was found at 300 m buffer.Therefore,300~400 m might be the critical area for river corridor management of Nenjiang river.As for temporal scale analysis,more landscape indices correlated closely with water quality indices in wet season than in dry season.In wet periods,forest,grassland and farmland landscapes were more relevant to water quality,while the construction landscape was more relevant to water quality in dry season.

相似文章

导出引用
计量
文章访问数: 7
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