LU Yanfang, ZHAN Yufang, QIAN Wanjian, et al. Species Diversity of Typical Community of Artificial Desert Vegetation in Hexi Corridor[J]. Bulletin of Soiland Water Conservation, 2018, 38(4): 14-18.
DOI:
LU Yanfang, ZHAN Yufang, QIAN Wanjian, et al. Species Diversity of Typical Community of Artificial Desert Vegetation in Hexi Corridor[J]. Bulletin of Soiland Water Conservation, 2018, 38(4): 14-18. DOI: 10.13961/j.cnki.stbctb.2018.04.003.
Species Diversity of Typical Community of Artificial Desert Vegetation in Hexi Corridor
[Objective] The study on species diversity of typical community of artificial desert vegetation in central Hexi Corridor in order to provide theoretical basis for ecological restoration and artificial vegetation construction in arid desert areas and restoration and reconstruction of vegetation diversity in sand areas.[Methods] Based on the investigation of species diversity of typical community of artificial desert in sand control station at Linze County of Zhangye City
Gansu Province. Using the Simpson and Shannon-Wiener species diversity index
the Margalef species richness index
the Simpson species dominance index
and the Pielou species evenness index.[Results] The shrub community had high richness index and diversity index
while the herb community had high evenness index. The species diversity index and richness index showed the same trend
while the uniformity index showed the opposite trend. β diversity is consistent with the α diversity reaction result; There were significant correlations between richness index and diversity index and evenness index. Plant diversity was proportional to soil conjunctival thickness
and had little effect on soil moisture content.[Conclusion] The shrub is dominated by the Haloxylon ammodendron-Nitraria tangutorum community
and the herb is dominated by the Bassia dasyphylla-Haloxylon ammodendron community
which has the characteristics of simple species composition and low diversity. The community is dominated by small shrubs and annual herbaceous plants that are xerophyte