Relationship between plant diversity, productivity and environmental factors at a transect scale in the dryland of China

PDF HTML?? XML?? ???? ???? ????????????????????????? DOI: 10.5846/stxb202202110335 ??: ????: ????: ????: ?????: ????: ???????????41991233?U21A2011?41971129?????????????? Relationship between plant diversity, productivity and environmental factors at a transect scale in the dryland of China Author: Affiliation: Fund Project: ?? | ?/? ???? ???? ???? ???? ???? ???? ??:???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????1?????????????????????R2=0.46????Shannon-Wiener????????????R2=0.21???????2?????Shannon-Wiener?????????????????????????????????????????????????????????Shannon-Wiener???????????????????????????????????????3?????????????????????40.9%???????????????Shannon-Wiener???????28.3%???????????4????????????????????????????????????????????????????????? Abstract:The relationship is an important subject ecological research, which will provide scientific guidance for revealing adaptation mechanism vegetation this area. Based on systematic sampling in-situ investigation along east-west northern China, effects various diversity productivity, regulation were quantified. The results showed that:(1) community weighted mean trait values aboveground biomass (R2=0.46) was stronger than that Shannon-Wiener index (R2=0.21). (2) index, values, positively linearly correlated with annual precipitation, soil organic carbon content total nitrogen content, while not significantly phosphorus. negatively temperature, temperature. (3) precipitation explained 40.9% change dryland, two correlated. temperature 28.3% (4) direct path to significant. indirectly affected through values.