This study seeks to isolate a select group of landscape metrics particularly well-suited for describing the Hani Terrace in southwest of China.We examined the response of 47 landscape metrics to a large range of imagery grain sizes.Based on a correlation analysis,the original 47 metrics were placed into 21 groups such that all metrics within a group were strongly correlated with each other with a value of more than 0.9,and were represented by a single descriptor.Using these cross-sectional metrics in the context of principal components analysis,we found that five factors explained almost 93%of the total variation in the landscape pattern.The highest loadings for these five factors were the Splitting index(SPLIT),Patch area distribution(AREA_CV),Shannon's diversity index(SHDI),Euclidean nearest neighbor distance distribution(ENN_AM),and Total core area(TCA),respectively.Considering the real landscape,we added the Patch fractal dimension distribution(FRAC_MN)as the sixth landscape pattern metric.As the scale effect of landscape pattern metrics we design to investigate how a suite of commonly use landscape metrics respond to changing grain size.Based on the anlasis,we determined that the best domain of scale to characterise the Hani Terrace pattern metrics is between 40m and 45m.Through the fractal method,we found that the characteristic scale of the Hani Terrace is the same as the scale domain of metrics,among the 40m and 45m.We suggest that the majority of the patterns in the Hani Terrace landscapes,indeed for all those in southwest China,can be described effectively with these six metrics.
XU Yuantao, MIN Qingwen, YUAN Zheng, BAI Yanying, SUN Yehong, LI Jing, CAO Zhi
. Identifying Landscape Pattern Metrics for the Hani Terrace in Yunnan, China[J]. Journal of Resources and Ecology, 2013
, 4(3)
: 212
-219
.
DOI: 10.5814/j.issn.1674-764x.2013.03.004
Adachi S.2007.Agricultural technologies of terraced rice cultivation in the Ailao Mountains,Yunnan,China(The front of area studies).Asian and African Area Studies,6:173-196.
Alhamad M N,M A Alrababah,R A Feagin and A Gharaibeh.2011.Mediterranean drylands:The effect of grain size and domain of scale on landscape metrics.Ecological Indicators,11:611-621.
Bailey D,F Herzog,I Augenstein,et al.2007.Thematic resolution matters:Indicators of landscape pattern for European agro-ecosystems.Ecological Indicators,7:692-709.
Cifaldi R L,J D Allan,J D Duh and D G Brown.2004.Spatial patterns in land cover of exurbanizing watersheds in southeastern Michigan.Landscape and Urban Planning,66:107-123.
Clark W C.1985.Scales of climate impacts.Climatic Change,7:5-27.
Cushman S A,K McGariyal and M C Neel.2008.Parsimony in landscape metrics:Strength,universality,and consistency.Ecological Indicators, 8:691-703.
Delcourt H R and P A Delcourt.1988.Quaternary landscape ecology:Relevant scales in space and time.Landscape Ecology,2:23-44.
Fullen M A.2009.Agro-environmental sustainability of the Yuanyang rice terraces of Yunnan(China):Lessons for Europe.In:Protection of the ecological and productivity functions in a pan European context:International Conference of ESSC,Pruhonice,Czech Republic,2009:12-18.
Gao J and Li S.2011.Detecting spatially non-stationary and scale-dependent relationships between urban landscape fragmentation and related factors using geographically weighted regression.Applied Geography,31:292-302.
Gustafson E J.1998.Quantifying landscape spatial pattern:What is the state of the art?Ecosystems,1:143-156.
Mi H F,Wang J,Qian C,et al.2012.Simulation of eco-hydrological process in Hani Terrace wetland.Procedia Earth and Planetary Science,5:230-236.
Jiao Y and Li X.2011.Ethnic culture and nature:Interactions in the Hani Terrace Landscape.In:Hong S K,Kim J E,Wu J G,et al.(Ed.).Landscape Ecology inAsian Cultures.Springer,29-40.
Li H and J Reynolds.1995.On definition and quantification of heterogeneity.Oikos,73(2):280-284.
Li H B and Wu J G.2004.Use and misuse of landscape indices.Landscape Ecology,19:389-399.
McGarigal K,S A Cushman,M C Neel,E Ene.2002.FRAGSTATS:Spatial Pattern Analysis Program for Categorical Maps.Computer software program produced by the authors at the University of Massachusetts,Amherst,MA,USA.Available at www.umass.edu/landeco/research/ fragstats/fragstats.html.
Riitters K H,R O'neill,C Hunsaker,et al.1995.A factor analysis of landscape pattern and structure metrics.Landscape Ecology,10:23-39.
Turner M G.1989.Landscape ecology:The effect of pattern on process.Annual Review of Ecology and Systematics,20:171-197.
Turner M G,V H Dale and R H Gardner.1989.Predicting across scales:Theory development and testing.Landscape Ecology,3:245-252.
Wheatley M.2010.Domains of scale in forest-landscape metrics:Implications for species-habitat modeling.Acta Oecologica-International Journal of Ecology,36:259-267.
Wiens JA.1989.Spatial scaling in ecology.Functional Ecology,3:385-397.
Wu J.1999.Hierarchy and scaling:extrapolating information along a scaling ladder.Canadian Journal of Remote Sensing,25:367-380.
Wu J.2004.Effects of changing scale on landscape patten analysis:scaling relations.Landscape Ecology,19:125-138.
Wu J and Li H.2006.Concepts of scale and scaling.In:Wu J(Eds.).Scaling and uncertainty analysis in ecology.Springer,3-15.
Wu J G and R Hobbs.2002.Key issues and research priorities in landscape ecology:An idiosyncratic synthesis.Landscape Ecology,17:355-365.
Wu J J.2013.Landscape ecology.In:Leemans R(Ed.).Ecological Systems.Springer,179-200.
Zhu Y,Chen H,Fan J,et al.2000.Genetic diversity and disease control in rice.Nature,406:718-722.
Zhu Y,Wang Y,Chen H and Lu B R.2003.Conserving traditional rice varieties through management for crop diversity.Bioscience,53:158-162.
