Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (6): 65-77.DOI: 10.7522/j.issn.1000-694X.2021.00080
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Danhui Qi1,4(), Hongxiao Yang5, Qi Lu1,2, Jianmin Chu3(
), Qi Yuan3, Honghao Gan3, Shuai Zhao3, Jiawei Chen3, Xiaoqing Xu3
Received:
2021-05-24
Revised:
2021-07-14
Online:
2021-11-20
Published:
2021-12-17
Contact:
Jianmin Chu
CLC Number:
Danhui Qi, Hongxiao Yang, Qi Lu, Jianmin Chu, Qi Yuan, Honghao Gan, Shuai Zhao, Jiawei Chen, Xiaoqing Xu. Biodiversity of plant communities and its environmental interpretation in the Otindag Sandy Land, China[J]. Journal of Desert Research, 2021, 41(6): 65-77.
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URL: http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2021.00080
环境因子 | 简称 | 单位 | |
---|---|---|---|
气候因子 | 生长季降水量 | PGS | mm |
生长季均温 | TGS | ℃ | |
≥0 ℃积温 | AT0 | ℃ | |
生长季平均风速 | WGS | m·s-1 | |
土壤因子 | 有机碳 | SOC | g·kg-1 |
全氮 | TN | g·kg-1 | |
全磷 | TP | g·kg-1 | |
全钾 | TK | g·kg-1 | |
有效氮 | AN | mg·kg-1 | |
有效磷 | AP | mg·kg-1 | |
有效钾 | AK | mg·kg-1 |
Table 1 Environmental factors in the study area
环境因子 | 简称 | 单位 | |
---|---|---|---|
气候因子 | 生长季降水量 | PGS | mm |
生长季均温 | TGS | ℃ | |
≥0 ℃积温 | AT0 | ℃ | |
生长季平均风速 | WGS | m·s-1 | |
土壤因子 | 有机碳 | SOC | g·kg-1 |
全氮 | TN | g·kg-1 | |
全磷 | TP | g·kg-1 | |
全钾 | TK | g·kg-1 | |
有效氮 | AN | mg·kg-1 | |
有效磷 | AP | mg·kg-1 | |
有效钾 | AK | mg·kg-1 |
群落名称 | 样方数 | 优势种 |
---|---|---|
榆树群落 | 23 | 榆树(Ulmuspumila)、盐蒿(Artemisiahalodendron)、冰草(Agropyroncristatum)、蒙古虫实(Corispermummongolicum)、冷蒿(Artemisiafrigida)、黄柳(Salixgordejevii) |
小叶锦鸡儿群落 | 18 | 小叶锦鸡儿(Caraganamicrophylla)、沙鞭(Psammochloavillosa)、蒙古虫实(Corispermummongolicum)、猪毛菜(Salsolacollina)、狗尾草(Setariaviridis)、雾冰藜(Bassiadasyphylla) |
黄柳群落 | 7 | 黄柳(Salixgordejevii)、蒙古虫实(Corispermummongolicum)、小叶锦鸡儿(Caraganamicrophylla)、沙鞭(Psammochloavillosa)、盐蒿(Artemisiahalodendron)、乌柳(Salixcheilophila) |
长梗扁桃群落 | 8 | 长梗扁桃(Prunuspedunculata)、糙隐子草(Cleistogenessquarrosa)、大针茅(Stipagrandis)、小叶锦鸡儿(Caraganamicrophylla)、画眉草(Eragrostispilosa)、狭叶锦鸡儿(Caraganastenophylla) |
Table 2 Mean community types of the Otindag Sandy Land
群落名称 | 样方数 | 优势种 |
---|---|---|
榆树群落 | 23 | 榆树(Ulmuspumila)、盐蒿(Artemisiahalodendron)、冰草(Agropyroncristatum)、蒙古虫实(Corispermummongolicum)、冷蒿(Artemisiafrigida)、黄柳(Salixgordejevii) |
小叶锦鸡儿群落 | 18 | 小叶锦鸡儿(Caraganamicrophylla)、沙鞭(Psammochloavillosa)、蒙古虫实(Corispermummongolicum)、猪毛菜(Salsolacollina)、狗尾草(Setariaviridis)、雾冰藜(Bassiadasyphylla) |
黄柳群落 | 7 | 黄柳(Salixgordejevii)、蒙古虫实(Corispermummongolicum)、小叶锦鸡儿(Caraganamicrophylla)、沙鞭(Psammochloavillosa)、盐蒿(Artemisiahalodendron)、乌柳(Salixcheilophila) |
长梗扁桃群落 | 8 | 长梗扁桃(Prunuspedunculata)、糙隐子草(Cleistogenessquarrosa)、大针茅(Stipagrandis)、小叶锦鸡儿(Caraganamicrophylla)、画眉草(Eragrostispilosa)、狭叶锦鸡儿(Caraganastenophylla) |
物种 | 科 | 生活型 | 生态类型 | 存在度/% |
---|---|---|---|---|
糙隐子草(Cleistogenessquarrosa) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 81.93 |
蒙古虫实(Corispermummongolicum) | 苋科(Amaranthaceae) | 一年生草本 | 旱生 | 80.72 |
猪毛菜(Salsolacollina) | 苋科(Amaranthaceae) | 一年生草本 | 旱中生 | 77.11 |
雾冰藜(Bassiadasyphylla) | 苋科(Amaranthaceae) | 一年生草本 | 旱生 | 66.27 |
狗尾草(Setariaviridis) | 禾本科(Poaceae) | 一年生草本 | 中生 | 62.65 |
冷蒿(Artemisiafrigida) | 菊科(Asteraceae) | 多年生草本 | 旱生 | 61.45 |
盐蒿(Artemisiahalodendron) | 菊科(Asteraceae) | 半灌木 | 中旱生 | 60.24 |
小叶锦鸡儿(Caraganamicrophylla) | 豆科(Fabaceae) | 灌木 | 旱生 | 57.83 |
冰草(Agropyroncristatum) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 45.78 |
蒙古韭(Alliummongolicum) | 石蒜科(Amaryllidaceae) | 多年生草本 | 旱生 | 43.37 |
细叶韭(Alliumtenuissimum) | 石蒜科(Amaryllidaceae) | 多年生草本 | 旱生 | 43.37 |
花苜蓿(Medicagoruthenica) | 豆科(Fabaceae) | 多年生草本 | 中旱生 | 42.17 |
寸草(Carexduriuscula) | 莎草科(Cyperaceae) | 多年生草本 | 中旱生 | 42.17 |
藜(Chenopodiumalbum) | 苋科(Amaranthaceae) | 一年生草本 | 中生 | 39.76 |
羊草(Leymuschinensis) | 禾本科(Poaceae) | 多年生草本 | 旱生-中旱生 | 39.76 |
沙鞭(Psammochloavillosa) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 38.55 |
榆树(Ulmuspumila) | 榆科(Ulmaceae) | 乔木 | 旱中生 | 33.73 |
画眉草(Eragrostispilosa) | 禾本科(Poaceae) | 一年生草本 | 中生 | 33.73 |
地梢瓜(Cynanchumthesioides) | 夹竹桃科(Apocynaceae) | 多年生草本 | 中旱生 | 30.12 |
Table 3 Common plant species in the Otindag Sandy Land (Presence>30%)
物种 | 科 | 生活型 | 生态类型 | 存在度/% |
---|---|---|---|---|
糙隐子草(Cleistogenessquarrosa) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 81.93 |
蒙古虫实(Corispermummongolicum) | 苋科(Amaranthaceae) | 一年生草本 | 旱生 | 80.72 |
猪毛菜(Salsolacollina) | 苋科(Amaranthaceae) | 一年生草本 | 旱中生 | 77.11 |
雾冰藜(Bassiadasyphylla) | 苋科(Amaranthaceae) | 一年生草本 | 旱生 | 66.27 |
狗尾草(Setariaviridis) | 禾本科(Poaceae) | 一年生草本 | 中生 | 62.65 |
冷蒿(Artemisiafrigida) | 菊科(Asteraceae) | 多年生草本 | 旱生 | 61.45 |
盐蒿(Artemisiahalodendron) | 菊科(Asteraceae) | 半灌木 | 中旱生 | 60.24 |
小叶锦鸡儿(Caraganamicrophylla) | 豆科(Fabaceae) | 灌木 | 旱生 | 57.83 |
冰草(Agropyroncristatum) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 45.78 |
蒙古韭(Alliummongolicum) | 石蒜科(Amaryllidaceae) | 多年生草本 | 旱生 | 43.37 |
细叶韭(Alliumtenuissimum) | 石蒜科(Amaryllidaceae) | 多年生草本 | 旱生 | 43.37 |
花苜蓿(Medicagoruthenica) | 豆科(Fabaceae) | 多年生草本 | 中旱生 | 42.17 |
寸草(Carexduriuscula) | 莎草科(Cyperaceae) | 多年生草本 | 中旱生 | 42.17 |
藜(Chenopodiumalbum) | 苋科(Amaranthaceae) | 一年生草本 | 中生 | 39.76 |
羊草(Leymuschinensis) | 禾本科(Poaceae) | 多年生草本 | 旱生-中旱生 | 39.76 |
沙鞭(Psammochloavillosa) | 禾本科(Poaceae) | 多年生草本 | 旱生 | 38.55 |
榆树(Ulmuspumila) | 榆科(Ulmaceae) | 乔木 | 旱中生 | 33.73 |
画眉草(Eragrostispilosa) | 禾本科(Poaceae) | 一年生草本 | 中生 | 33.73 |
地梢瓜(Cynanchumthesioides) | 夹竹桃科(Apocynaceae) | 多年生草本 | 中旱生 | 30.12 |
环境因子 | 多样性指数 | ||||
---|---|---|---|---|---|
Patrick指数 | Simpson指数 | Shannon-Wiener指数 | Pielou指数 | ||
气候因子 | 生长季降水量 | 0.426** | 0.289** | 0.394** | 0.114 |
生长季均温 | -0.458** | -0.321** | -0.445** | -0.173 | |
≥0 ℃积温 | -0.426** | -0.332** | -0.418** | -0.163 | |
生长季风速 | -0.356** | -0.329** | -0.318** | -0.097 | |
土壤因子 | 有机碳 | 0.275* | 0.439** | 0.244* | 0.128 |
有效氮 | 0.382** | 0.465** | 0.332** | 0.131 | |
全磷 | -0.215 | -0.185 | -0.263* | -0.153 |
Table 4 Pearson correlation analysis between species diversity indices and environmental factors of plant communities in the Otindag Sandy Land
环境因子 | 多样性指数 | ||||
---|---|---|---|---|---|
Patrick指数 | Simpson指数 | Shannon-Wiener指数 | Pielou指数 | ||
气候因子 | 生长季降水量 | 0.426** | 0.289** | 0.394** | 0.114 |
生长季均温 | -0.458** | -0.321** | -0.445** | -0.173 | |
≥0 ℃积温 | -0.426** | -0.332** | -0.418** | -0.163 | |
生长季风速 | -0.356** | -0.329** | -0.318** | -0.097 | |
土壤因子 | 有机碳 | 0.275* | 0.439** | 0.244* | 0.128 |
有效氮 | 0.382** | 0.465** | 0.332** | 0.131 | |
全磷 | -0.215 | -0.185 | -0.263* | -0.153 |
统计轴 | 特征值 | 物种-环境 相关性 | 累计变异率/% | |
---|---|---|---|---|
物种数据 方差 | 物种-环境 关系 | |||
第1轴 | 0.398 | 0.941 | 7.19 | 26.87 |
第2轴 | 0.312 | 0.938 | 12.81 | 47.87 |
第3轴 | 0.204 | 0.928 | 16.49 | 61.65 |
第4轴 | 0.151 | 0.897 | 19.23 | 71.87 |
Table 5 Results for the first four axes of the CCA of communities and environmental factors in the Otindag Sandy Land
统计轴 | 特征值 | 物种-环境 相关性 | 累计变异率/% | |
---|---|---|---|---|
物种数据 方差 | 物种-环境 关系 | |||
第1轴 | 0.398 | 0.941 | 7.19 | 26.87 |
第2轴 | 0.312 | 0.938 | 12.81 | 47.87 |
第3轴 | 0.204 | 0.928 | 16.49 | 61.65 |
第4轴 | 0.151 | 0.897 | 19.23 | 71.87 |
环境因子 | 解释率/% | 贡献率/% | P值 |
---|---|---|---|
生长季降水量 | 6.7 | 25.1 | 0.002 |
生长季温度 | 4.8 | 18.1 | 0.002 |
全氮 | 4.1 | 15.2 | 0.004 |
全钾 | 2.8 | 10.3 | 0.054 |
生长季风速 | 2.4 | 8.9 | 0.248 |
土壤有机碳 | 2.3 | 8.6 | 0.172 |
≥0 ℃积温 | 1.8 | 6.6 | 0.782 |
全磷 | 2 | 7.4 | 0.572 |
Table 6 Explains and Contribution rate of community with environmental factors in the Otindag Sandy Land
环境因子 | 解释率/% | 贡献率/% | P值 |
---|---|---|---|
生长季降水量 | 6.7 | 25.1 | 0.002 |
生长季温度 | 4.8 | 18.1 | 0.002 |
全氮 | 4.1 | 15.2 | 0.004 |
全钾 | 2.8 | 10.3 | 0.054 |
生长季风速 | 2.4 | 8.9 | 0.248 |
土壤有机碳 | 2.3 | 8.6 | 0.172 |
≥0 ℃积温 | 1.8 | 6.6 | 0.782 |
全磷 | 2 | 7.4 | 0.572 |
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