Development of a new index for integrating landscape patterns with ecological processes at watershed scale
文献类型：期刊论文
| 作者 | Chen Liding ; Tian Huiying ; Fu Bojie ; Zhao Xinfeng |
| 刊名 | CHINESE GEOGRAPHICAL SCIENCE
 |
| 出版日期 | 2009-03 |
| 卷号 | 19期号:1页码:37-45 |
| 关键词 | landscape pattern location-weighted landscape index (LWLI) Lorenz curve theory nutrient loss surface water quality |
| 中文摘要 | Understanding the relationship between landscape patterns and ecological processes has been a central yet challenging research theme in landscape ecology. Over the past decades, many landscape metrics have been proposed but few directly incorporated ecological processes. In this paper, we developed a landscape index, namely, location-weighted landscape index (LWLI) to highlight the role of landscape type in ecological processes, such as nutrient losses and soil erosion. Within the framework of the Lorenz curve theory, we develop this index by integrating landscape pattern and point-based measurements at a watershed scale. The index can be used to characterize the contribution of landscape pattern to ecological processes (e.g. nutrient losses) with respect to a specific monitoring point in a watershed. Through a case study on nutrient losses in an agricultural area in northeastern China, we found that nutrient losses tended to be higher for a watershed with a higher LWLI value, and vice versa. It implied that LWLI can be used to evaluate the potential risk of nutrient losses or soil erosion by comparing their values across watersheds. In addition, this index can be extended to characterize ecological processes, such as the effect of landscape pattern on wildlife inhabitation and urban heat island effect. Finally, we discuss several problems that should be paid attention to when applying this index to a heterogeneous landscape site. |
| WOS记录号 | WOS:000263511000005 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21370]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen Liding,Tian Huiying,Fu Bojie,et al. Development of a new index for integrating landscape patterns with ecological processes at watershed scale[J]. CHINESE GEOGRAPHICAL SCIENCE,2009,19(1):37-45. |
| APA | Chen Liding,Tian Huiying,Fu Bojie,&Zhao Xinfeng.(2009).Development of a new index for integrating landscape patterns with ecological processes at watershed scale.CHINESE GEOGRAPHICAL SCIENCE,19(1),37-45. |
| MLA | Chen Liding,et al."Development of a new index for integrating landscape patterns with ecological processes at watershed scale".CHINESE GEOGRAPHICAL SCIENCE 19.1(2009):37-45. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。