The influence of hydrological and land use indicators on macrophyte richness in lakes - A comparison of catchment and landscape buffers across multiple scales

doi:10.1016/j.ecolind.2018.02.016

CORC > 武汉植物园 > 中国科学院武汉植物园

	The influence of hydrological and land use indicators on macrophyte richness in lakes - A comparison of catchment and landscape buffers across multiple scales
	Willby, Nigel J.2; Sun, Junyao 1,2; Hunter, Peter D.2; Tyler, Andrew N.2
刊名	ECOLOGICAL INDICATORS
	2018-06-01
卷号	89 页码:227-239
关键词	Catchment Buffer analyses Lake macrophyte Landscape pattern Species richness
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2018.02.016
英文摘要	In biogeography it is well established that environmental variables often have scale-dependent effects on abundance and distribution of organisms. Here we present results from a study on scale-dependency of macrophyte (aquatic plant) richness to hydrology and land use indicators. Hydrological connectivity and land use within the landscape surrounding 90 UK lakes, at nine buffer sizes varying from 0.25 km to 10 km from the shoreline, with (catchment buffer) and without (landscape buffer) adherence to the catchment boundary, were constructed using GIS. These variables were used to explain variation in macrophyte richness derived from field surveys. The results revealed strong scale-dependency. The effects of land use were most apparent at small buffer sizes and grossly outweighed the importance of hydrology at all spatial scales. The total richness of macrophytes was most strongly determined by land use and hydrology within 1 km of the lake for landscape buffers and 500 m for catchment buffers. The nature of the scale-dependent effect also varied with macrophyte growth habit. In terms of growth form composition, the effects of hydrological connectivity were stronger than those of land use, being greatest at an intermediate distance (similar to 5km) from the lake. Our results indicate the value of maintaining some lake catchments with less intensive land use, at least within 1 km of the lake shore, while also minimising alterations to catchment hydrology (e.g. through drainage or impoundment) over distances extending at least 5 km from the lake shore.
资助项目	University of Stirling, United Kingdom
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000430760900022
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/5089]
专题	中国科学院武汉植物园
通讯作者	Willby, Nigel J.
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.Univ Stirling, Sch Nat Sci, Biol & Environm Sci, Stirling FK9 4LA, Scotland
推荐引用方式 GB/T 7714	Willby, Nigel J.,Sun, Junyao,Hunter, Peter D.,et al. The influence of hydrological and land use indicators on macrophyte richness in lakes - A comparison of catchment and landscape buffers across multiple scales[J]. ECOLOGICAL INDICATORS,2018,89:227-239.
APA	Willby, Nigel J.,Sun, Junyao,Hunter, Peter D.,&Tyler, Andrew N..(2018).The influence of hydrological and land use indicators on macrophyte richness in lakes - A comparison of catchment and landscape buffers across multiple scales.ECOLOGICAL INDICATORS,89,227-239.
MLA	Willby, Nigel J.,et al."The influence of hydrological and land use indicators on macrophyte richness in lakes - A comparison of catchment and landscape buffers across multiple scales".ECOLOGICAL INDICATORS 89(2018):227-239.