Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm
To obtain the relationship between the pattern of plant community biodiversity and distribution and environmental factors, we conducted a study in a “3-circles” paradigm, which included grassland, sand, and beach land. Based on the “3-circles” paradigm, a 11.7 km land belt was selected, including th...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2016-11-01
|
| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2016.01.181 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849247308898631680 |
|---|---|
| author | WANG Xing SONG Naiping YANG Xinguo |
| author_facet | WANG Xing SONG Naiping YANG Xinguo |
| author_sort | WANG Xing |
| collection | DOAJ |
| description | To obtain the relationship between the pattern of plant community biodiversity and distribution and environmental factors, we conducted a study in a “3-circles” paradigm, which included grassland, sand, and beach land. Based on the “3-circles” paradigm, a 11.7 km land belt was selected, including three land types of girder land, slope land and beach land, which represented grassland, sandy land and wet land, respectively, and located in the ecotone area of grassland and sandy land in Wanjigou and Shabianzi villages of Yanchi County, Ningxia, China. Vegetation characteristics, soil water content at different layers, litter biomass and faeces counts on the ground and elevation were surveyed in August 2012. We conducted a clustering analysis by the important value of dominate species and then analyzed the relationship among the spatial distribution of community and biodiversity and different environmental factors (soil water content, litter biomass, faeces counts and elevation) by redundancy analysis (RDA).Results showed that: 1) A total of 56 plant species were recorded, including 14 families and 38 genera. The grasses, legumes and weeds were shown as the main species. The average coverage of plant showed a good restoration effect in comparison with that before enclosure and grazing prohibition, but the community structure did not change significantly, and psammophytic species were still the dominant species. The value (0.2-2) of plant diversity was lower, and the interferential factors (litter biomass and faeces counts on the ground) had significant effects, which were primary factors for the changes of plant biodiversity along the belt.2) The plant communities were classified into 12 groups at the fifth level of division by two-way indicator species analysis (TWINSPAN) and were classified into five groups by detrended correspondence analysis (DCA). The results of TWINSPAN and DCA were similar in the level of vegetation type in the desert steppe. The soil water content (60-80 cm) had a significant influence and it controlled the spatial distribution patterns of the plant community.In summary, under the “3-circles” belt condition, the spatial distribution of water resource in deep soil layer and interferential factors on the ground lead to the distinguished patch features of grassland. In the landscape level, the spatial distribution of soil water resource influenced the spatial distribution of plant community, and the interferential factors drived the change of plant diversity. There existed arduousness and feasibility in the restoration process of desert steppe, and the integration of geography and biology provide a new way for the restoration of desert steppe. Based on the redistribution of soil water resource in the zone of “3-circles”, future studies would focus on the spatial relationship between the soil water resource and community type, which will help make sure a reasonable and scientific program in ecological restoration and reconstruction in the desert steppe. |
| format | Article |
| id | doaj-art-fbcaf616bbaa4895b67fea1f08eefc48 |
| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-fbcaf616bbaa4895b67fea1f08eefc482025-08-20T03:58:14ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552016-11-014274775910.3785/j.issn.1008-9209.2016.01.18110089209Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigmWANG XingSONG NaipingYANG XinguoTo obtain the relationship between the pattern of plant community biodiversity and distribution and environmental factors, we conducted a study in a “3-circles” paradigm, which included grassland, sand, and beach land. Based on the “3-circles” paradigm, a 11.7 km land belt was selected, including three land types of girder land, slope land and beach land, which represented grassland, sandy land and wet land, respectively, and located in the ecotone area of grassland and sandy land in Wanjigou and Shabianzi villages of Yanchi County, Ningxia, China. Vegetation characteristics, soil water content at different layers, litter biomass and faeces counts on the ground and elevation were surveyed in August 2012. We conducted a clustering analysis by the important value of dominate species and then analyzed the relationship among the spatial distribution of community and biodiversity and different environmental factors (soil water content, litter biomass, faeces counts and elevation) by redundancy analysis (RDA).Results showed that: 1) A total of 56 plant species were recorded, including 14 families and 38 genera. The grasses, legumes and weeds were shown as the main species. The average coverage of plant showed a good restoration effect in comparison with that before enclosure and grazing prohibition, but the community structure did not change significantly, and psammophytic species were still the dominant species. The value (0.2-2) of plant diversity was lower, and the interferential factors (litter biomass and faeces counts on the ground) had significant effects, which were primary factors for the changes of plant biodiversity along the belt.2) The plant communities were classified into 12 groups at the fifth level of division by two-way indicator species analysis (TWINSPAN) and were classified into five groups by detrended correspondence analysis (DCA). The results of TWINSPAN and DCA were similar in the level of vegetation type in the desert steppe. The soil water content (60-80 cm) had a significant influence and it controlled the spatial distribution patterns of the plant community.In summary, under the “3-circles” belt condition, the spatial distribution of water resource in deep soil layer and interferential factors on the ground lead to the distinguished patch features of grassland. In the landscape level, the spatial distribution of soil water resource influenced the spatial distribution of plant community, and the interferential factors drived the change of plant diversity. There existed arduousness and feasibility in the restoration process of desert steppe, and the integration of geography and biology provide a new way for the restoration of desert steppe. Based on the redistribution of soil water resource in the zone of “3-circles”, future studies would focus on the spatial relationship between the soil water resource and community type, which will help make sure a reasonable and scientific program in ecological restoration and reconstruction in the desert steppe.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2016.01.181desert steppetwo-way indicator species analysis“3-circles” paradigmcommunity biodiversity |
| spellingShingle | WANG Xing SONG Naiping YANG Xinguo Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm 浙江大学学报. 农业与生命科学版 desert steppe two-way indicator species analysis “3-circles” paradigm community biodiversity |
| title | Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm |
| title_full | Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm |
| title_fullStr | Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm |
| title_full_unstemmed | Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm |
| title_short | Response of community distribution and biodiversity of grassland plants to environmental factors based on a “3-circles” paradigm |
| title_sort | response of community distribution and biodiversity of grassland plants to environmental factors based on a 3 circles paradigm |
| topic | desert steppe two-way indicator species analysis “3-circles” paradigm community biodiversity |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2016.01.181 |
| work_keys_str_mv | AT wangxing responseofcommunitydistributionandbiodiversityofgrasslandplantstoenvironmentalfactorsbasedona3circlesparadigm AT songnaiping responseofcommunitydistributionandbiodiversityofgrasslandplantstoenvironmentalfactorsbasedona3circlesparadigm AT yangxinguo responseofcommunitydistributionandbiodiversityofgrasslandplantstoenvironmentalfactorsbasedona3circlesparadigm |