Phosphorus is more effective than nitrogen in restoring plant communities of heavy metals polluted soils

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Phosphorus is more effective than nitrogen in restoring plant communities of heavy metals polluted soils
	Huang, Jingxin; Wang, Chenjiao; Qi, Lanlan; Zhang, Xiaole; Tang, Guangmei; Li, Lei; Guo, Jiahang; Jia, Yujing; Dou, Xiaolin; Lu, Meng
刊名	ENVIRONMENTAL POLLUTION
	2020-11
卷号	266 页码:1-10
关键词	Soil heavy metals pollution Plant community composition Plant diversity conservation Nitrogen and phosphorus
ISSN号	0269-7491
英文摘要	Heavy metal pollution is widespread, and has an increasing trend in some countries and regions. It can be easily accumulated in plants, leading to plant species loss and affecting plant community composition. Artificial restoration can conserve plant diversity in contaminated soils and accelerate the recovery of polluted ecosystems. The application of nitrogen (N) and phosphorus (P) is inexpensive and convenient, which can increase the resistance of plants to adversity and promote the growth of plants in heavy metal polluted soils. In order to examine the effect of N and P nutrition on the conservation of plant community, we conducted a comparison experiment in greenhouse using soil with low N and P concentration, and set five treatments: C (soil with no heavy metals and fertilizer addition), H (soil with heavy metals addition but with no fertilizer), HN (soil with heavy metals and N addition), HP treatment(soil with heavy metals and P addition), HNP treatment (soil with heavy metals, N and P addition). Our results showed that heavy metal pollution reduced plant species by 300%, and significantly decreased plant diversity (P < 0.05). N addition increased the richness of plant species and increased the dominance of Euphorbia peplus, but had no significant effect on plant diversity and community structure, while reduced the evenness of plant species. P addition of HP and HNP treatments restored plant species richness and increased plant diversity under heavy metal pollution. The plant community structures of these two treatments were more similar to that of group C. Compared with N addition, P addition had a better performance to restoring the species composition and relative dominance of plant communities. Our results provided a guidance for the restoration of plant communities and the conservation of plant species in low N and P concentration soils with the context of heavy metal pollution. (C) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45199]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	Huang, Jingxin,Wang, Chenjiao,Qi, Lanlan,et al. Phosphorus is more effective than nitrogen in restoring plant communities of heavy metals polluted soils[J]. ENVIRONMENTAL POLLUTION,2020,266:1-10.
APA	Huang, Jingxin.,Wang, Chenjiao.,Qi, Lanlan.,Zhang, Xiaole.,Tang, Guangmei.,...&Lu, Meng.(2020).Phosphorus is more effective than nitrogen in restoring plant communities of heavy metals polluted soils.ENVIRONMENTAL POLLUTION,266,1-10.
MLA	Huang, Jingxin,et al."Phosphorus is more effective than nitrogen in restoring plant communities of heavy metals polluted soils".ENVIRONMENTAL POLLUTION 266(2020):1-10.