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Richness and composition of herbaceous species in restored shrubland and grassland ecosystems in the northern Loess Plateau of China
Jia, Xiaoxu2; Shao, Mingan1; Wei, Xiaorong2
2011-12-01
Source PublicationBIODIVERSITY AND CONSERVATION
Volume20Issue:14Pages:3435-3452
AbstractRestored grasslands and shrublands are integral parts of the semi-natural landscape and are of major importance for biodiversity in the northern Loess Plateau. Determining the underlying factors that control the richness and composition of herbaceous species in restored grasslands and shrublands is urgently needed. Thus, the specific objective of this study was to evaluate the relative importance of soil, plant, and topographic explanatory variables affecting the richness and composition of herbaceous species in restored shrubland and grassland ecosystems in a typical watershed within the northern Loess Plateau. In this study, 27 restored grassland sites and 16 restored shrubland sites were sampled during September 2009. Using variation partitioning (partial canonical correspondence analysis), we determined the individual and shared effects of these three sets of explanatory variables on herbaceous biodiversity in the two restored habitats. Most of the explained variation in plant diversity was related to the pure effect of soil, plant, and topographic variables. Restored shrublands had significantly more species than grasslands, and abandoned dam farmlands had significantly more species than other grassland sites. Moreover, botanical diversity responded differently to the explanatory variables in different plant communities. The pure effects of soil properties, soil moisture in particular, accounted for the largest fractions of explained variation in species diversity in restored grasslands. Both plant and topographic variables had balancing pure effects on species diversity in restored shrublands, in particular the shrub density and slope angle. We conclude that the maintenance of a moderate density of shrubs (less than 3600 shrubs per ha), construction of check-dams, and grazing at a low stocking rate, taking conditions of soil and topographic site into account, may help to conserve biodiversity in the northern Loess Plateau.
SubtypeArticle
KeywordHerbaceous Biodiversity Partial Canonical Correspondence Analysis Shrubland Grassland Variation Partitioning The Loess Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS KeywordLAND-USE ; SPATIAL VARIABILITY ; PLANT-COMMUNITIES ; SOIL-WATER ; DIVERSITY ; MANAGEMENT ; STABILITY ; MOISTURE ; TOPOGRAPHY ; VEGETATION
Indexed BySCI
Language英语
WOS SubjectBiodiversity Conservation ; Ecology ; Environmental Sciences
WOS IDWOS:000297348600009
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68068
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShao, Mingan
Affiliation1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.NW A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
Recommended Citation
GB/T 7714
Jia, Xiaoxu,Shao, Mingan,Wei, Xiaorong. Richness and composition of herbaceous species in restored shrubland and grassland ecosystems in the northern Loess Plateau of China[J]. BIODIVERSITY AND CONSERVATION,2011,20(14):3435-3452.
APA Jia, Xiaoxu,Shao, Mingan,&Wei, Xiaorong.(2011).Richness and composition of herbaceous species in restored shrubland and grassland ecosystems in the northern Loess Plateau of China.BIODIVERSITY AND CONSERVATION,20(14),3435-3452.
MLA Jia, Xiaoxu,et al."Richness and composition of herbaceous species in restored shrubland and grassland ecosystems in the northern Loess Plateau of China".BIODIVERSITY AND CONSERVATION 20.14(2011):3435-3452.
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