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Afforestation neutralizes soil pH
Hong, SB (Hong, Songbai)1; Piao, SL (Piao, Shilong)1,2; Chen, AP (Chen, Anping)3; Liu, YW (Liu, Yongwen)1; Liu, LL (Liu, Lingli)4; Peng, SS (Peng, Shushi)1; Sardans, J (Sardans, Jordi)5,6; Sun, Y (Sun, Yan)1; Penuelas, J (Penuelas, Josep)5,6; Zeng, H (Zeng, Hui)7
Volume9Issue:0Pages:文献号 520

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.

Subject Area生态学
WOS IDWOS:000424291600016
Indexed BySCIE
KeywordAcidic Forest Soils Nitrogen Deposition Species Richness Initial Ph Organic-matter Chemical-composition Climate-change Carbon China Aluminum
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Cooperation Status国际
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorPiao, SL (Piao, Shilong); Chen, AP (Chen, Anping); Zeng, H (Zeng, Hui)
Affiliation1.Peking Univ, Coll Urban & Environm Sci, Sinofrench Inst Earth Syst Sci, Beijing 100871, Peoples R China;
2.Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, Inst Tibetan Plateau Res, Ctr Excellence Tibetan Earth Sci, Beijing 100085, Peoples R China;
3.Purdue Univ, Dept Forestry & Nat Resources, W Lafayette, IN 46907 USA;
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China;
5.CREAF, Barcelona 08193, Catalonia, Spain;
6.CREAF CSIC UAB, CSIC Global Ecol Unit, Barcelona 08193, Catalonia, Spain;
7.Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China.
Recommended Citation
GB/T 7714
Hong, SB ,Piao, SL ,Chen, AP ,et al. Afforestation neutralizes soil pH[J]. NATURE COMMUNICATIONS,2018,9(0):文献号 520.
APA Hong, SB .,Piao, SL .,Chen, AP .,Liu, YW .,Liu, LL .,...&Zeng, H .(2018).Afforestation neutralizes soil pH.NATURE COMMUNICATIONS,9(0),文献号 520.
MLA Hong, SB ,et al."Afforestation neutralizes soil pH".NATURE COMMUNICATIONS 9.0(2018):文献号 520.
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