Species richness and composition of shrub-encroached grasslands in relation to environmental factors in northern China
文献类型： 外文期刊
作者： Zhou, Luhong 1 ; Shen, Haihua 1 ; Chen, Leiyi 1 ; Li, He 1 ; Zhang, Pujin 1 ; Zhao, Xia 1 ; Liu, Taoyu 1 ; Liu, Shangshi; 1 ;
作者机构： 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inner Mongolia Prataculture Res Ctr, Hohhot 010031, Peoples R China
4.Peking Univ, Coll Urban & Environm Sci, Minist Educ, Dept Ecol, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
5.Peking Univ, Key Lab Earth Surface Proc, Minist Educ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
关键词： CCA; community composition; northern China; shrub-encroached grasslands; TWINSPAN
期刊名称：JOURNAL OF PLANT ECOLOGY （ 影响因子：1.774； 五年影响因子：2.547 ）
ISSN： 1752-9921
年卷期： 2019 年 12 卷 1 期
页码：
收录情况： SCI
摘要： Aims Shrub encroachment has taken place in many of China's northern grasslands. This study attempts to answer the following questions: which plant communities are present in these shrub-encroached grasslands (SEGs)? What are the species richness and composition of these communities? Which environmental factors determine the spatial distribution thereof? Methods We investigated the community characteristics of 255 SEG plots with a size of 20 m x 20 m at 69 locations across grasslands in northern China. In each plot, paired 1-m(2) quadrats were established within shrub patches and the neighbouring grassy matrix to record herb species composition. The quantitative characteristics (abundance, coverage and height) of herbs were measured in 0.25-m(2) subquadrats, and soil samples were collected in the quadrats. Two-way indicator species analysis (TWINSPAN), detrended canonical analysis (DCA) and canonical correspondence analysis (CCA) were used for community clustering and ordination. Important Findings The DCA and TWINSPAN results suggested that the SEGs in northern China can be divided into six community types: Potentilla fruticosa + Carex atrofusca, Spiraea hypericifolia + Festuca ovina, Caragana acanthophylla + Stipa sareptana, Caragana microphylla + Leymus chinensis, Caragana microphylla + Stipa klemenzii and Caragana tibetica + Cleistogenes songorica. At a regional scale, climate and soil nutrients controlled the spatial patterns of species richness and community composition of the SEGs in northern China. Temperature exerted a negative impact, whereas precipitation and nutrients had positive effects on species richness. Among the environmental factors used, climate was the major controller of the variations in community structure. These results provide new insights into the community composition of SEGs in China and enrich the global dataset of SEGs.
- 相关文献
作者其他论文 更多>>
-
Effects of Nitrogen and Water Addition on Ecosystem Carbon Fluxes in a Grazing Desert Steppe
作者：Wen, Chao;Shan, Yumei;Yang, Ding;Mu, Lan;Zhang, Pujin;Liu, Xinchao;Chang, Hong;Ye, Ruhan;Huang, Jianhui;Huang, Jianhui
关键词：desert steppe; grazing intensity; precipitation increase; nitrogen addition; net ecosystem CO2 exchange
-
Effects of nitrogen and water addition on ecosystem carbon fluxes in a heavily degraded desert steppe
作者：Wen, Chao;Liu, Sibo;Baoyin, Taogetao;Wen, Chao;Shan, Yumei;Yin, Guomei;Ye, Ruhan;Liu, Xinchao;Chang, Hong;Yi, Fengyan;Liu, Sibo;Zhang, Pujin;Xing, Tingting;Liu, Li;Huang, Jianhui
关键词：Desert steppe; Ecosystem CO2 fluxes; Precipitation increase; Nitrogen addition
-
High-resolution mapping of grassland canopy cover in China through the integration of extensive drone imagery and satellite data
作者：Hu, Tianyu;Cao, Mengqi;Zhao, Xiaoxia;Liu, Xiaoqiang;Liu, Zhonghua;Huang, Zhengying;Chen, Leiyi;Liu, Guofang;Song, Chuangye;Yang, Xuejun;Ye, Xuehua;Liu, Lingli;Su, Yanjun;Hu, Tianyu;Cao, Mengqi;Zhao, Xiaoxia;Liu, Xiaoqiang;Liu, Zhonghua;Huang, Zhengying;Chen, Leiyi;Liu, Guofang;Song, Chuangye;Yang, Xuejun;Ye, Xuehua;Zhang, Shuren;Liu, Lingli;Su, Yanjun;Hu, Tianyu;Cao, Mengqi;Zhao, Xiaoxia;Liu, Xiaoqiang;Liu, Zhonghua;Su, Yanjun;Liu, Liangyun;Li, Liping;Tao, Shengli;Tang, Zhiyao;Guo, Yanpei;Ji, Chengjun;Zheng, Chengyang;Fang, Jingyun;Tao, Shengli;Tang, Zhiyao;Guo, Yanpei;Ji, Chengjun;Zheng, Chengyang;Fang, Jingyun;Guo, Yanpei;Wang, Guoyan;Hu, Xiaokang;Zhou, Luhong;Cheng, Yunxiang;Ma, Wenhong;Wang, Yonghui;Cheng, Yunxiang;Ma, Wenhong;Wang, Yonghui;Zhang, Pujin;Fan, Yuejun;Yu, Feihai;Wang, Zhong;Qiao, Xiujuan;Cheng, Xiaoli;Yin, Chunying;Yin, Chunying;Ma, Hongyuan;Yang, Yan;Luo, Wanyin;Gong, Yanming;Wang, Lei;Zhang, Shuren;Zhu, Xiangyun;Wang, Qinggang;Li, Shijin;Yang, Yongchuan;Kelly, Maggi;Kelly, Maggi
关键词：Grassland; Canopy cover; Drone imagery; Machine learning; Scale mismatch
-
Root-Borne Microbial Necromass-An Overlooked Source of Grassland Soil Organic Carbon
作者：Zhang, Xinying;Dai, Guohua;Zhai, Guoqing;Yi, Wenxing;Ma, Lixiao;Huang, Zhenying;Ye, Xuehua;Feng, Xiaojuan;Zhang, Xinying;Dai, Guohua;Zhai, Guoqing;Yi, Wenxing;Ma, Lixiao;Huang, Zhenying;Ye, Xuehua;Feng, Xiaojuan;Zhang, Xinying;Zhai, Guoqing;Yi, Wenxing;Ma, Lixiao;Huang, Zhenying;Feng, Xiaojuan;Zhang, Xinying;Ma, Wenhong;Wang, Yonghui;Zhang, Pujin
关键词：root; grassland; arbuscular mycorrhizal fungi; microbial necromass; soil organic carbon
-
Effects of precipitation and grazing on the diversity and productivity of desert steppe
作者：Ye, Ruhan;Yang, Ding;Yi, Fengyan;Zhang, Pujin;Qiu, Xiao;Tuya, Wulan;Sun, Hailian;Yu, Wanying;Ye, Xuehua;Yang, Xuejun;Huang, Zhenying;Liu, Guofang;Yu, Wanying;Huang, Zhenying;Liu, Guofang
关键词：aboveground biomass; annual precipitation variability; desert steppe; grazing pressure; plant diversity
-
Response of soil extracellular enzyme activity to experimental precipitation in a shrub-encroached grassland in Inner Mongolia
作者：Akinyemi, Damilare Stephen;Zhu, Yankun;Zhao, Mengying;Zhang, Pujin;Shen, Haihua;Fang, Jingyun;Akinyemi, Damilare Stephen;Zhu, Yankun;Zhao, Mengying;Shen, Haihua;Fang, Jingyun;Zhang, Pujin;Zhang, Pujin
关键词：Altered precipitation; Climate change; Extracellular enzyme; Shrub encroachment; Soil
-
Shrub encroachment decreases soil inorganic carbon stocks in Mongolian grasslands
作者：Liu, Shangshi;Zhou, Luhong;Li, He;Zhao, Xia;Yang, Yuanhe;Zhu, Yankun;Hu, Huifeng;Chen, Leiyi;Zhang, Pujin;Shen, Haihua;Fang, Jingyun;Liu, Shangshi;Li, He;Zhu, Yankun;Shen, Haihua;Zhou, Luhong;Fang, Jingyun;Zhou, Luhong;Fang, Jingyun;Zhang, Pujin
关键词：carbon budget; carbon source; shrub encroachment; soil acidification; soil inorganic carbon; temperate grassland
