Mapping forest vegetation patterns in an Atlantic-Mediterranean transitional area by integration of ordination and geostatistical techniques  

作　　者：Adriana E.Olthoff Cristina Gómez Josu G.Alday Carolina Martínez-Ruiz 

机构地区：[1]Ecology Area,Agroforestry Sciences Department,E.T.S.II.AA.University of Valladolid,Avda.Madrid 50,34071 Palencia,Spain [2]Department of Geography and Environment,School of Geoscience,University of Aberdeen,Aberdeen AB243UE,UK [3]Department of Forest Systems and Resources,CIFOR-INIA,Ctra.de La Coruña km 7.5,28040 Madrid,Spain [4]Department of Crop and Forest Sciences-AGROTECNIO Center,University of Lleida,25198 Lleida,Spain [5]Sustainable Forest Management Research Institute,University of Valladolid-INIA,E.T.S.II.AA.,Avda.Madrid 50,34071 Palencia,Spain

出　　处：《Journal of Plant Ecology》2018年第1期114-122,共9页植物生态学报（英文版）

基　　金：J.G.A.was supported by the program‘Juan de la Cierva-Incorporación’fellowships(IJCI-2014-21393).

摘　　要：Aims Forest vegetation variability may be explained by the complex inter-play among several spatial structuring factors,including climate and topography.We modelled the spatial variability of forest vegetation assemblages and significant environmental variables along a com-plex environmental gradient or coenocline to produce a detailed cartographic database portraying the distribution of forests along it.Methods We combined an analysis of ordination coenoclines with kriging over 772 field data plots from the third Spanish National Forest Inventory in an Atlantic-Mediterranean transitional area(northern Spain).Important Findings The best fitted empirical semivariogram revealed a strong spatial structure of forest species composition along the complex envi-ronmental gradient considered(the climatic-topographic gradient from north to south).The steady and gradual increase of semivari-ance with a marked lag distance indicates a gradual turnover of forest assemblages according to the climatic-topographic vari-ations(regional or local).Two changes in the slope of the semi-variogram suggest the existence of two different scales of spatial variation.The interpolation map by Kriging of forest vegetation assemblages along the main coenocline shows a clear spatial dis-tribution pattern of trees and shrubs in accordance with the spa-tial variation of significant environmental variables.We concluded that the multivariate geostatistical approach is a suitable technique for spatial analysis of forest systems employing data from national forest inventories based on a regular network of field plots.The development of an assortment of maps describing changes in veg-etation assemblages and variation in environmental variables is expected to be a suitable tool for an integrated forest management and planning.

关 键 词：coenocline KRIGING National Forest Inventory ORDINATION VARIOGRAM 

分 类 号：S71[农业科学—林学]