GAO Guo-gang, HU Yu-kun, LI Kai-hui, et al. Relationships Between Species Diversity of Plant Communities and Soil Factors in Alpine-cold Grassland[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 118-122.
GAO Guo-gang, HU Yu-kun, LI Kai-hui, et al. Relationships Between Species Diversity of Plant Communities and Soil Factors in Alpine-cold Grassland[J]. Bulletin of Soiland Water Conservation, 2009, 28(3): 118-122.DOI:
The plant communities species diversity of alpine-cold grassland in different elevation gradients was studied.Regression analysis was used to study the relationships between 4 diversity indexes and 14 soil factors.Results indicated that total salt content
HCO3-
Ca2+
available nitrogen
pH
and soil moisture content were correlative to species diversity significantly(P<0.05).The relationship among diversity
total salt content
HCO3-
Ca2+
available nitrogen
and soil moisture content was best fitted by binomial model.The relationship between pH and richness index was best fitted by linear model.The relationship among Shannon Wiener index
the total salt content
Ca2+
and pH was best fitted by binomial model.The relationship between soil moisture content and Shannon Wiener index was best fitted by linear model.The results showed that diversity did not have a simple negative or positive relationship with the soil factors.