Next Article in Journal
Trends in Forest Fire Occurrence in the Ilmensky Nature Reserve, Southern Urals, Russia, between 1948 and 2014
Next Article in Special Issue
Ecosystem Carbon Stocks and Their Annual Sequestration Rate in Mature Forest Stands on the Mineral Soils of Estonia
Previous Article in Journal
Changes in Soil-Phosphorus Fractions by Nitrogen and Phosphorus Fertilization in Korean Pine Plantation and Its Natural Forest
Previous Article in Special Issue
Changes in the Soil Labile Organic Carbon Fractions following Bedrock Exposure Rate in a Karst Context
 
 
Article

Effect of Simulated Combined N and P on Soil Acidity within Soil Aggregates in Natural and Planted Korean Pine Forest in Northeast China

1
School of Forestry, Northeast Forestry University, Harbin 150040, China
2
Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin 150040, China
3
Department of Natural Resource Management (NRM), National Agriculture Research Center (NARC), Islamabad 44000, Pakistan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Anna Zavarzina, Irina N. Kurganova, Yakov Kuzyakov, Francisco Matus, Agustin Merino and Wenhua Xiang
Forests 2022, 13(4), 529; https://doi.org/10.3390/f13040529
Received: 13 February 2022 / Revised: 23 March 2022 / Accepted: 24 March 2022 / Published: 29 March 2022
(This article belongs to the Special Issue Soil Organic Matter and Nutrient Cycling in Forests)
Globally, atmospheric nitrogen (N) deposition is rising, adversely impacting soil health, i.e., increasing soil acidity. While phosphorus (P) is the limiting element in the temperate environment and plays a key role in making the ecosystem more vulnerable to N-derived acidification. The impact of elevated N and P inputs on soil acidity and exchangeable base cations have been extensively studied; however, few studies have focused on these parameters, especially within various soil aggregate fractions in the temperate forest. In 2017, a field experiment was conducted under N and P additions with four soil aggregate fractions (>5 mm, 2–5 mm, 0.25–2 mm, and <0.25 mm) in two forests, i.e., the broad leave Korean pine forest (BKPF) and Korean pine plantation (KPP) in the Liangshui National Natural Reserves in Northeast China. Results showed that high NP addition decreases pH, base cations, Mg2+ Ca2+, and BS% and increases in Fe3+, Al3+, and E.A (effective acidity) in all four aggregate fractions, in descending order; overall concentration of the base cations is ranked as BKPF > KPP. Thus, soil acidification is primarily caused by a decrease in base cations, such as Ca2+ and Mg2+, and increase in exchangeable Fe3+ and Al3+ ions in large macro-aggregates and macro-aggregates, which leads to the depletion of soil nutrients. The initial pH value (5.69) in >5 mm soil aggregate was decreased to (5.4) under high fertilizer application, while a minimum value of 5.36 was observed in 0.25–2 mm aggregates under high fertilizer application. The same trend was observed in all aggregates because of decrease in base cations, which, in turn, affects the vitality and health of the forests. View Full-Text
Keywords: acidity; fertilization; aggregates; fertility; nutrition; ecosystem acidity; fertilization; aggregates; fertility; nutrition; ecosystem
Show Figures

Figure 1

MDPI and ACS Style

Jamil, M.A.; Hussain, A.; Duan, W.; Chen, L.; Khan, K.; Abid, K.; Li, C.; Guo, Q.; Zarif, N.; Qu, M.; Wang, Y.; Khan, A. Effect of Simulated Combined N and P on Soil Acidity within Soil Aggregates in Natural and Planted Korean Pine Forest in Northeast China. Forests 2022, 13, 529. https://doi.org/10.3390/f13040529

AMA Style

Jamil MA, Hussain A, Duan W, Chen L, Khan K, Abid K, Li C, Guo Q, Zarif N, Qu M, Wang Y, Khan A. Effect of Simulated Combined N and P on Soil Acidity within Soil Aggregates in Natural and Planted Korean Pine Forest in Northeast China. Forests. 2022; 13(4):529. https://doi.org/10.3390/f13040529

Chicago/Turabian Style

Jamil, Muhammad Atif, Anwaar Hussain, Wenbiao Duan, Lixin Chen, Kashif Khan, Kulsoom Abid, Changzhun Li, Qiwen Guo, Nowsherwan Zarif, Meixue Qu, Yafei Wang, and Attaullah Khan. 2022. "Effect of Simulated Combined N and P on Soil Acidity within Soil Aggregates in Natural and Planted Korean Pine Forest in Northeast China" Forests 13, no. 4: 529. https://doi.org/10.3390/f13040529

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop