汾河上游流域景观破碎化与生态系统服务关系研究  

Relationship Between Landscape Fragmentation and Ecosystem Services in the Upper Reach of the Fenhe River Watershed,China

作　　者：董敏 苏常红[1] 王亚璐 DONG Min;SU Changhong;WANG Yalu(Institute of Loess Plateau,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学黄土高原研究所,山西太原030006

出　　处：《山西大学学报（自然科学版）》2020年第1期186-195,共10页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然基金(41471097)。

摘　　要：以汾河上游流域为研究区,综合运用网格分析法和景观生态学与生态系统服务相关理论,基于ArcGIS和GeoDa方法分析了2000、2008和2015年土壤保持、产水量和植被净初级生产力(NetPrimary Productivity,NPP)三种生态系统服务时空变化特征与景观格局的空间分异规律,定量分析了景观破碎化与生态系统服务的空间相关性。结果表明:(1)2000-2015年,土壤保持与产水量均整体呈现先增加后减小的趋势,空间分布变化比较明显;NPP生产呈现持续增加的趋势。(2)2000-2015年,流域西南部景观格局变化最为明显,其破碎化程度增强,而流域北部景观格局破碎化程度减弱。(3)2000-2015年,土壤保持、产水量与景观破碎化呈现显著空间相关关系(P<0.05),NPP生产与景观破碎化的空间相关性相对较弱。Taking the Upper Reach of the Fenhe River Watershed,Shanxi as study area,we investigated the spatio-temporal pattern of the three ecosystem services of soil conservation,water yield,and Net Primary Productivity(NPP)production,as well as the variation of landscape pattern of 2000,2008and 2015,respectively.The spatial correlation of landscape fragmentation and ecosystem service were quantitatively analyzed by grid analysis,landscape ecology,and ecosystem services methods based on ArcGIS and Geo-Da.The results showed that during 2000-2015period,the soil conservation service and water yield service increased first and then decreased,while the NPP production kept increasing during the whole period.The landscape pattern demonstrated a strong tendency of fragmentation in the southwest of the watershed.On the contrary,the landscape pattern in the north demonstrated a tendency of de-fragmentation.Both the soil conservation service and water yield service illustrated a significant spatial correlation with landscape fragmentation.NPP didn’t show a significant spatial correlation with landscape fragmentation.

关 键 词：汾河生态系统服务 景观格局 破碎化 空间关联 

分 类 号：P901[天文地球—自然地理学]