气候变化领域集成服务门户(CCPortal): Afforestation neutralizes soil pH

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DOI	10.1038/s41467-018-02970-1
	Afforestation neutralizes soil pH
	Hong, Songbai; Piao, Shilong; Chen, Anping; Liu, Yongwen; Liu, Lingli; Peng, Shushi; Sardans, Jordi; Sun, Yan; Penuelas, Josep; Zeng, Hui
通讯作者	Piao, SL (通讯作者)
发表日期	2018
ISSN	2041-1723
卷号	9
英文摘要	Soil pH regulates soil biogeochemical processes and has cascading effects on terrestrial ecosystem structure and functions. Afforestation has been widely adopted to increase terrestrial carbon sequestration and enhance water and soil preservation. However, the effect of afforestation on soil pH is still poorly understood and inconclusive. Here we investigate the afforestation-caused soil pH changes with pairwise samplings from 549 afforested and 148 control plots in northern China. We find significant soil pH neutralization by afforestation-afforestation lowers pH in relatively alkaline soil but raises pH in relatively acid soil. The soil pH thresholds (T-pH), the point when afforestation changes from increasing to decreasing soil pH, are species-specific, ranging from 5.5 (Pinus koraiensis) to 7.3 (Populus spp.) with a mean of 6.3. These findings indicate that afforestation can modify soil pH if tree species and initial pH are properly matched, which may potentially improve soil fertility and promote ecosystem productivity.
关键词	ACIDIC FOREST SOILS NITROGEN DEPOSITION SPECIES RICHNESS INITIAL PH ORGANIC-MATTER CHEMICAL-COMPOSITION CLIMATE-CHANGE CARBON CHINA ALUMINUM
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000424291600016
来源期刊	NATURE COMMUNICATIONS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259345
推荐引用方式 GB/T 7714	Hong, Songbai,Piao, Shilong,Chen, Anping,et al. Afforestation neutralizes soil pH[J]. 中国科学院青藏高原研究所,2018,9.
APA	Hong, Songbai.,Piao, Shilong.,Chen, Anping.,Liu, Yongwen.,Liu, Lingli.,...&Zeng, Hui.(2018).Afforestation neutralizes soil pH.NATURE COMMUNICATIONS,9.
MLA	Hong, Songbai,et al."Afforestation neutralizes soil pH".NATURE COMMUNICATIONS 9(2018).