AN INVESTIGATION OF UNCERTAINTY IN-FIELD HABITAT MAPPING AND THE IMPLICATIONS FOR DETECTING LAND-COVER CHANGE

被引：46

作者：

CHERRILL, A

MCCLEAN, C

机构：

[1] Centre for Land Use and Water Resources Research, University of Newcastle Upon Tyne, Porter Building, Newcastle Upon Tyne, NE1 7RU, St. Thomas Street

来源：

LANDSCAPE ECOLOGY | 1995年 / 10卷 / 01期

关键词：

FIELD SURVEY; VEGETATION; LAND COVER TYPE; MAPPING; UNCERTAINTY; ERROR; CHANGE;

D O I：

10.1007/BF00158550

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Land cover data for landscape ecological studies are frequently obtained by field survey. In the United Kingdom, temporally separated field surveys have been used to identify the locations and magnitudes of recent changes in land cover. However, such map data contain errors which may seriously hinder the identification of land cover change and the extent and locations of rare landscape features. This paper investigates the extent of the differences between two sets of maps derived from field surveys within the Northumberland National Park in 1991 and 1992. The method used in each survey was the 'Phase 1' approach of the Nature Conservancy Council of Great Britain. Differences between maps were greatest for the land cover types with the smallest areas. Overall spatial correspondence between maps was found to be only 44.4%. A maximum of 14.4% of the total area surveyed was found to have undergone genuine land cover change. The remaining discrepancies, equivalent to 41.2% of the total survey area, were attributed primarily to differences of land cover interpretation between surveyors (classification error). Differences in boundary locations (positional error) were also noted, but were found to be a relatively minor source of error. The implications for the detection of land cover change and habitat mapping are discussed.

引用

页码：5 / 21

页数：17

共 26 条

[21]

Rich T.C.G., Woodruff E.R., Recording bias in botanical surveys, Watsonia, 19, pp. 73-95, (1992)

[22]

Stamp L.D., The land of Britain: the final report of the Land Utilisation of Britain, (1947)

[23]

Whitby M., Land use change: the causes and consequences, (1992)

[24]

Wyatt B.K., Greatorex Davies N., Bunce R.G.H., Fuller R.M., Hill M.O., Dictionary of surveys and classifications of land cover and land use, Report to the Department of Environment, (1993)

[25]

Wyatt B.K., Greatorex Davies N., Bunce R.G.H., Fuller R.M., Hill M.O., Comparisons of land cover definitions, Report to Department of the Environment, (1994)

[26]

Wyatt G., A review of Phase 1 habitat survey in England, (1991)

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