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Sustainable Forest Fertilization Strategies: Impact on Soil Quality, Ecosystem Health...
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Sustainable Forest Fertilization Strategies: Impact on Soil Quality, Ecosystem Health and Productivity

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Soil".

Deadline for manuscript submissions: closed (15 November 2024) | Viewed by 6486

Special Issue Editors

Dr. Saif Ullah

E-Mail Website
Guest Editor
Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China
Interests: soil ecology; soil fertility; nutrient cycling; plant–soil interaction; plant physiology
Dr. Izhar Ali

E-Mail Website
Guest Editor
Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China
Interests: soil fertility; plant physiology; biomass production; bioethanol; greenhouse gases
Dr. Nabil Ibrahim Elsheery

E-Mail Website
Guest Editor
Agricultural Botany Department, Faculty of Agriculture, Tanta University, Tanta 31527, Egypt
Interests: plant ecology; plant physiology; plant conservation; plant morphology; phytochemistry
Prof. Dr. Haijun Sun

E-Mail Website
Guest Editor
College of Forestry, Nanjing Forestry University, Nanjing 210037, China
Interests: nitrogen cycling in soil and its environmental effects; biochar application in agricultural and forestry ecosystems; the eco-benefits of soil and water conservation engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue on the use of fertilizers for forestry soil explores the crucial role of fertilizers in sustainable forest management. Forests are essential for carbon sequestration, biodiversity conservation, and timber production, but they require careful nutrient management for health and productivity reasons. Fertilizers are also vital in plant nurseries, supporting root and shoot growth, preventing nutrient deficiencies, and enhancing disease resistance. This Special Issue delves into various aspects of fertilizer use in forestry, addressing specific nutrient needs for different tree species and the challenges presented by nutrient deficiencies. It also emphasizes the importance of balanced fertilization for overall forest health, strategies to reduce nutrient runoff, and exploring sustainable practices, like controlled-release fertilizers.

Furthermore, it examines the economics of forest fertilization, assessing its cost-effectiveness and long-term benefits for timber production. Organic and biofertilizers are considered for their potential to promote sustainability and reduce reliance on synthetic chemicals. Therefore, this Special Issue is aimed at offering valuable insights into the complexities of nutrient management in forest ecosystems, emphasizing the need for science-based approaches that align with ecological, economic, and sustainability goals in forestry.

Potential topics include, but are not limited to:

  • Nutrient management for specific tree species;
  • Nutrient deficiency remediation;
  • Sustainable fertilization practices;
  • Fertilizer application techniques;
  • Forest health and resilience.

Dr. Saif Ullah
Dr. Izhar Ali
Dr. Nabil Ibrahim Elsheery
Dr. Haijun Sun
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Forests is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • forestry soil
  • nutrient management
  • carbon sequestration
  • synthetic chemicals
  • biodiversity conservation

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

15 pages, 3144 KiB  
Article
Effect of Inoculation with Rhizosphere Phosphate-Solubilizing Bacteria on the Growth and Physiological Characteristics of Parashorea chinensis
by Zhongheng Hu, Shuang Wei, Wannian Li, Tong Wu, Saif Ullah and Mei Yang
Forests 2024, 15(11), 1932; https://doi.org/10.3390/f15111932 - 1 Nov 2024
Viewed by 1518
Abstract
Given the challenges of slow growth and low survival rates in the early stages of Parashorea chinensis cultivation, identifying sustainable methods to enhance seedling performance is critical for successful reforestation and conservation efforts. This study aimed to address these by investigating the growth-promoting [...] Read more.
Given the challenges of slow growth and low survival rates in the early stages of Parashorea chinensis cultivation, identifying sustainable methods to enhance seedling performance is critical for successful reforestation and conservation efforts. This study aimed to address these by investigating the growth-promoting effects of phosphate-solubilizing bacteria (PSB). One-year-old seedlings of P. chinesis were inoculated with PSB strains isolated from the rhizosphere soil of Parashorea chinensis H. Wang plantations Y3, W5, H8, and a mixed strain (Mix), with inoculated seedling as a control (CK). The effects of inoculation on seedling growth, photosynthetic physiology, plant nutrient status, and physiological indicators were comprehensively evaluated. Results showed that PSB inoculation increased seedling height and basal diameter growth of P. chinensis, with an increase of 1.56 cm and 0.53 mm compared to CK, respectively, though the differences were not significant. The Mix treatment significantly improved photosynthesis, with increases in net photosynthetic rate (106.3%), transpiration rate (93.89%), and intercellular CO2 concentration (75.51%) compared to CK. Nutrient levels including total nitrogen, total phosphorus, and total potassium were significantly increased by 15.98%, 25.54%, and 32.12%, respectively, in the Mix treatments compared to CK. Moreover, stress resistance also improved, with higher proline content, soluble sugar, and soluble protein levels. Antioxidant enzyme activities (SOD, CAT, and POD) were increased by 9.83%, 23.66%, and 292.32%, respectively, while MDA content was significantly reduced by 69.01%. The mixed strain treatment also significantly increased acid phosphatase activity by 111.88%. In conclusion, PSB inoculation, particularly with the mixed strain, promoted growth and nutrient uptake photosynthetic efficiency and stress resistance in P. chinensis seedlings, offering a promising biotechnological solution for improving seedling performance. Full article
(This article belongs to the Special Issue Sustainable Forest Fertilization Strategies: Impact on Soil Quality, Ecosystem Health and Productivity)
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13 pages, 13557 KiB  
Article
Substitution of Inorganic Fertilizer with Organic Fertilizer Influences Soil Carbon and Nitrogen Content and Enzyme Activity under Rubber Plantation
by Qiu Yang, Jiale Li, Wenxian Xu, Jingjing Wang, Yamin Jiang, Waqar Ali and Wenjie Liu
Forests 2024, 15(5), 756; https://doi.org/10.3390/f15050756 - 25 Apr 2024
Cited by 2 | Viewed by 2160
Abstract
Conventional fertilization practices can lead to many ecological problems, such as nutrient imbalance, soil acidity, and reduced soil fertility, in natural rubber plantations. To address these challenges, a field investigation was strategically carried out to substitute inorganic fertilizer with organic fertilizer, consisting of [...] Read more.
Conventional fertilization practices can lead to many ecological problems, such as nutrient imbalance, soil acidity, and reduced soil fertility, in natural rubber plantations. To address these challenges, a field investigation was strategically carried out to substitute inorganic fertilizer with organic fertilizer, consisting of six treatments: no fertilization (CK), inorganic fertilizer (NPK), 25% replacement of inorganic through organic (25% manure (M)), 50% replacement of inorganic through organic (50% manure (M)), 75% replacement of inorganic through organic (75% manure (M)), and 100% organic fertilizer (100% manure). The soil physicochemical properties (soil organic carbon (SOC), total nitrogen (TN), mineral nitrogen (N), ammonium nitrogen (NH4+-N), and nitrate nitrogen (NO3−-N)), C:N, pH, and the carbon- and nitrogen-converting enzymes β-1,4-glucosidase (BG), N-acetylglucosaminidase (NAG) and L-leucine aminopeptidase (LAP) were all determined. The partial substitution of inorganic fertilizer with organic fertilizer (i.e., 75% M at surface soil layer) showed higher SOC (14.52 g·kg−1), TN (1.06 g·kg−1), N (20.07 mg·kg−1), C:N (14.63), NH4+-N (10.63 mg·kg−1), and NO3−-N (11.06 mg·kg−1) than NPK and CK. This increase in physicochemical properties after partial replacement of inorganic with organic fertilizer resulted from higher carbon and nitrogen enzyme activities (BG (143.17·nmol·g−1·h−1), NAG (153.96 nmol·g−1·h−1), and LAP (153.48 nmol·g−1·h−1)) compared to NPK and CK. Further, the Pearson correlation and redundancy analysis (RDA) analyses confirmed a significant positive correlation between SOC, N, and soil enzymes. This study presents a new strategy for assessing the impact of partially replacing inorganic fertilizer with organic fertilizer in rubber plantations in tropical regions, mainly by modifying the soil nutrient composition. Full article
(This article belongs to the Special Issue Sustainable Forest Fertilization Strategies: Impact on Soil Quality, Ecosystem Health and Productivity)
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28 pages, 2721 KiB  
Article
Autumnal Potassium Induced Modulations in Plant Osmoprotectant Substances, Nutrient Stoichiometry and Precision Sustainable Seedling Cultivation in Parashorea chinensis
by Saif Ullah, Fang Liu, Le Xie, Si Liao, Wannian Li, Izhar Ali, Mei Yang and Yuanyuan Xu
Forests 2024, 15(2), 310; https://doi.org/10.3390/f15020310 - 6 Feb 2024
Cited by 4 | Viewed by 1316
Abstract
Parashorea chinensis, an endemic tree species in China’s tropical rainforests, holds ecological and economic importance. Challenges like low resistance, poor quality, and low survival rates hinder its successful cultivation. This study explores the potential of autumn potassium fertilization on Parashorea seedlings from [...] Read more.
Parashorea chinensis, an endemic tree species in China’s tropical rainforests, holds ecological and economic importance. Challenges like low resistance, poor quality, and low survival rates hinder its successful cultivation. This study explores the potential of autumn potassium fertilization on Parashorea seedlings from two provenances (Napo and Tianyang). The treatments included no fertilizer (CK-1), a single application of 160 mg K·plant−1 (CK-2), and various potassium levels K1, K2, K3, K4, K5, and K6 (corresponding to 0, 40, 80, 160, 320, and 640 mg·K·plant−1, respectively) combined with nitrogen (200 mg·plant−1) and phosphorus (80 mg·plant−1) fertilization. The findings indicate that autumn potassium application, in conjunction with nitrogen (N) and phosphorus (P) fertilization, significantly enhances seedling height and biomass in both provenances, resulting in an average increase of 101% and 89% under the K4 treatment compared to CK-1 and CK-2, comparatively. Both Napo and Tianyang provenances exhibited distinct responses in photosynthetic rate (2.70 μmol·m−2·s−1 and 1.97 μmol·m−2·s−1, respectively) and stomatal conductance (0.042 mol·m−2·s−1 and 0.029 mol·m−2·s−1, respectively) to the K4 treatment, which proved most effective. The chlorophyll content was significantly higher for Napo provenance with the K3 treatment (74.31%, 58.99%), while for Tianyang, it was higher with the K4 treatment (41.48%, 17.36%), compared to CK-1 and CK-2, respectively. Antioxidant enzymes activity, osmoregulatory capacity, and malondialdehyde content all exhibited variations with potassium application levels, with the K4 treatment offering significant benefits. In Napo provenance, lignin (199.82 mg·g−1) and cellulose (252.38 mg·g−1) peaked at K4, while Tianyang exhibited variation, higher lignin (184.25 mg·g−1) at K3, and cellulose (257.73 mg·g−1) at K4. Nutrient content analysis demonstrates that the K4 treatment enhances nutrient absorption and storage, increasing total N (21.56 mg·kg−1), P (4.69 mg·kg−1), and K (13.49 mg·kg−1) content. A comprehensive analysis reveals that the K4 treatment yields the highest quality scores (1.87, 1.85) and membership values (0.82, 0.68) for both Napo and Tianyang seedlings, with Napo seedlings outperforming their Tianyang provenance. Thus, treatment K4 underscores the effectiveness of autumn potassium applications for robust seedling cultivation and adaptation, offering valuable insights for sustainable cultivation practices. Full article
(This article belongs to the Special Issue Sustainable Forest Fertilization Strategies: Impact on Soil Quality, Ecosystem Health and Productivity)
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