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Resource Heterogeneity, Not Resource Quantity, Plays an Important Role in Determining Tree Species Diversity in Two Species-Rich Forests 期刊论文
FRONTIERS IN ECOLOGY AND EVOLUTION, 2020, 卷号: 8, 页码: 8
作者:  Zhang, Liwen;  Mi, Xiangcheng;  Harrison, Rhett D.;  Yang, Bo;  Man, Xingxing;  Ren, Haibao;  Ma, Keping
浏览  |  Adobe PDF(1078Kb)  |  收藏  |  浏览/下载：438/169  |  提交时间：2021/06/21
resource quantity  resource heterogeneity  variation partitioning  species richness  ecological niche  plant density  spatial covariation  
入侵植物互花米草的资源化利用研究进展 期刊论文
中国生态农业学报(中英文), 2019, 卷号: 27, 期号: 12, 页码: 1870-1879
作者:  谢宝华, 路峰, 韩广轩
收藏  |  浏览/下载：415/0  |  提交时间：2020/01/09
入侵植物  互花米草  资源化利用  秸秆资源  药用价值  耐盐基因  Invasive plant  Spartina alterniflora  Resource utilization  Straw resource  Medicinal value  Salt tolerant gene  In China, Spartina alterniflora, an invasive alien plant species, covers an area of approximately 54 600 hectares. The total dry matter of the aboveground part of S. alterniflora is 7.5*10~5~1.15*10~6 tons per year. The control and utilization of S. alterniflora have received increasing attention. A combined utilization and control approach could produce simultaneous economic and ecological benefits. Studies of the utilization of S. alterniflora in China tended to focus on the direct utilization of straw, including its use as fuel, feed, and raw material. These methods of utilization were generally low-value. Possible high-value utilization includes the medicinal value of S. alterniflora and its salt-tolerant genes. In all the studies, the largest proportion (43%) of straw was utilized as fuel, whereas the smallest proportion (approximately 8%) was utilized for other purposes, such as fertilizer and for its salt-tolerant genes. Previous studies have focused on utilization technologies, but they have not looked at S. alterniflora collection technology and market promotion. In the future, attention should be paid to every link of the industry chain of S. alterniflora utilization, and cooperation between research institutions and enterprises is essential for the synchronous development of industry, education, and research.  
Precipitation reduction alters herbaceous community structure and composition in a savanna 期刊论文
JOURNAL OF VEGETATION SCIENCE, 2019, 卷号: 30, 期号: 5, 页码: 821-831
作者:  Jin, YQ;  Li, J;  Liu, CG;  Liu, YT;  Zhang, YP;  Song, QH;  Sha, LQ;  Balasubramanian, D;  Chen, AG;  Yang, DX;  Li, PG
Adobe PDF(1600Kb)  |  收藏  |  浏览/下载：305/81  |  提交时间：2020/07/08
community dynamics  drought stress  nonlinear response  plant functional groups  species diversity  
食用蔬菜能吸收和积累微塑料 期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
收藏  |  浏览/下载：491/0  |  提交时间：2020/06/17
微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.  
Phenology-based Spartina alterniflora mapping in coastal wetland of the Yangtze Estuary using time series of GaoFen satellite no. 1 wide field of view imagery 期刊论文
JOURNAL OF APPLIED REMOTE SENSING, 2017, 卷号: 11, 页码: 26020
作者:  Ai, Jinquan;  Gao, Wei;  Gao, Zhiqiang;  Shi, Runhe;  Zhang, Chao
收藏  |  浏览/下载：380/0  |  提交时间：2017/09/05
Phenology-based Mapping  Normalized Difference Vegetation Index Time Series  Classification  Support Vector Machine  Invasive Plant Species  Training Sample Sizes  
Seasonal Dynamics of Rhizosphere Soil Microbial Abundances and Enzyme Activities under Different Vegetation Types in the Coastal Zone, Shandong, China 期刊论文
CLEAN-SOIL AIR WATER, 2014, 卷号: 42, 期号: 8, 页码: 1115-1120
作者:  Zhang, Li-Hua;  Song, Lu-Ping;  Xu, Gang;  Chen, Peng;  Sun, Jun-Na;  Shao, Hong-Bo;  Shao, HB (reprint author), Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China. shaohongbochu@126.com
Adobe PDF(382Kb)  |  收藏  |  浏览/下载：636/224  |  提交时间：2015/07/30
Coastal Sandy Soils  Microbial Community  Plant Species  Soil Property  
Low plant diversity and floristic homogenization in fast-urbanizing towns in Shandong Peninsular, China: Effects of urban greening at regional scale for ecological engineering 期刊论文
ECOLOGICAL ENGINEERING, 2014, 卷号: 64, 页码: 179-185
作者:  Wang, Guang-mei;  Zuo, Jin-cheng;  Li, Xue-rong;  Liu, Yu-hong;  Yu, Jun-bao;  Shao, Hong-bo;  Li, Yun-zhao
浏览  |  Adobe PDF(1150Kb)  |  收藏  |  浏览/下载：1270/391  |  提交时间：2014/07/08
Urban Ecological Greening  Plant Diversity  Floristic Homogenization  Exotic Species  Richness Difference  Species Replacement  
Strong plant-soil associations in a heterogeneous subtropical broad-leaved forest 期刊论文
PLANT AND SOIL, 2011, 卷号: 347, 期号: 1-2, 页码: 211-220
作者:  Zhang, Liwen;  Mi, Xiangcheng;  Shao, Hongbo;  Ma, Keping
Adobe PDF(154Kb)  |  收藏  |  浏览/下载：953/247  |  提交时间：2012/03/06
Dispersal Limitation  Plant-soil Associations  Soil Nutrients  Spatial Patterns  Species Coexistence  Subtropical Forest