青藏高原高寒灌丛草甸和草原化草甸CO2通量动态及其限制因子
柴曦1,3,李英年2,段呈1,3,张涛4,宗宁1,石培礼1,3,*(
),何永涛1,3,张宪洲1,3
),何永涛1,3,张宪洲1,3
CO2 flux dynamics and its limiting factors in the alpine shrub-meadow and steppe-meadow on the Qinghai-Xizang Plateau
CHAI Xi1,3,LI Ying-Nian2,DUAN Cheng1,3,ZHANG Tao4,ZONG Ning1,SHI Pei-Li1,3,*(),HE Yong-Tao1,3,ZHANG Xian-Zhou1,3
),HE Yong-Tao1,3,ZHANG Xian-Zhou1,3
图2. 高寒灌丛草甸和草原化草甸生长季节(GS)和年际(Ann) CO2通量(包括生态系统净初级生产力(NEP)、总初级生产力(GPP)和生态系统呼吸(Re))的总值、环境因子(平均气温(Ta)和降水总量(PPT))以及年际碳利用效率(CUE)、Re/GPP、归一化植被指数(NDVI)以及各因子年际变异系数(CV)对比。
Fig. 2. Comparison of annual (Ann) and growing season (GS) accumulative values of CO2 fluxes (including net ecosystem productivity (NEP ), gross primary productivity (GPP) and ecosystem respiration (Re)) and environmental factors (including mean air temperature (Ta) and total precipitation (PPT )) as well as annual carbon use efficiency (CUE), Re/GPP, normalized difference vegetation index (NDVI) and coefficients of variation (CV) of these factors in the alpine shrub-meadow and steppe-meadow.
