Microclimatic factors and soil characteristics of Arroceros Forest Park in the City of Manila, Philippines

Berame, Julie S.; Elazegui, Erwin P.; Arenas, Minerva C.; Orozco, Jason A.

doi:10.13057/biodiv/d221130

Cited by 3 publications

(1 citation statement)

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“…The decomposition of plant residues is governed by microbial activity (Thoms and Gleixner 2013), and several available substrates are provided by different plantations for microbial growth, thereby providing different soil microbial functions (Jagadamma et al 2014). The plant composition changes could affect microclimatic soil conditions (Gutiérrez and Vivoni 2013; Ivanov et al 2018), such as soil temperature, air temperature, and soil moisture (Berame et al 2021). Those soil conditions then altered the microbial population and their activities (Chapin III et al 2016) due to the increasing tree leaves deposits and decomposing fine roots.…”

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confidence: 99%

The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system

et al. 2023

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Abstract. Rinady MVP, Nuraini Y, Prayogo C, Arfarita N. 2023. The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system. Biodiversitas 24: 1333-1345. Different management of agroforestry systems changes crop composition and growth. This will affect organic matter inputs that become the source of food and energy for soil microorganisms. The soil organisms themself play an important role in amplifying soil biogeochemical processes and regulating soil reactions. This process allows the nutrients to be released into the soil and absorbed by the crop. This study aimed to examine the abundance of soil bacterial population and the changes in soil chemical properties (soil pH, total soil organic carbon (C), and total soil N (Nitrogen) under different land management and organic matter inputs. The determination of total organic C and total soil N was used by Walkey and Black and Kjedahl methods. Total Plate Count (TPC) techniques were employed to measure Total Bacteria Population (TBP) and Total Cellulolytic Bacteria (TCB). The Randomized Complete Block Design was used along with the 5% Tukey's test to examine the significant effect of the treatments. These treatments consisted of various agroforestry system as follow: (i) pine-coffee agroforestry system (PK), (ii) pine-banana agroforestry system (PPs), (iii) pine-cardamom agroforestry system (PR), (iv) pine-vegetable agroforestry system (PS), (v) mixed garden (KC), and (vi) citrus (LJ). Each treatment was repeated four times to obtain 24 experimental plots using a size of 20 m x 20 m. The results showed that the highest organic C and N content was obtained at the PK (agroforestry of pine at 41 years and coffee at 11 years old) plot, which was about 6.64% and 0.56%. Those parameters strongly correspond to the greatest soil bacteria population and soil cellulolytic bacteria population at the value of 1,71 x 105 CFU/g and 4,24 x 104 CFU/g, resulting from the greatest quantity of in-situ litter accumulation at PK plot to reach about 201.35 g. The dry weight value of litter in situ at the PK plot is greater than that of the PS and LJ plots by 81% and 87%. A power equation followed the relationship between soil organic C and the total bacteria population. A similar trend has been observed between total soil Nitrogen and total bacteria population. We concluded that changes in different management could affect soil chemical conditions and the changes in the total population of soil bacteria and cellulolytic soil bacteria.

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Section: Introductionmentioning

confidence: 99%

The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system

et al. 2023

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Investigating the possibility of leakage detection in water distribution networks using cosmic ray neutrons in the thermal region

Sostero,

Pagano,

Bodini

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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Dynamic Responses of Soil Organic Carbon to Urbanization: A Global Perspective

Xu,

Zhao,

2024

Global Change Biology

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Rapid global urbanization has a complex impact on soil organic carbon (SOC) stocks. Through its direct and indirect impacts on soil formation and development, urbanization greatly influences SOC stocks. However, the extent to which urbanization affects SOC stocks globally remains unclear. In this study, we utilized an urban–rural gradient approach to assess the effects of urbanization on SOC stocks at both global and national scales. First, we calculated the urbanization intensity (UI) at a 1 km scale globally, categorizing urbanization into three stages: low (0 ≤ UI ≤ 25), medium (25 < UI ≤ 75), and high (75 < UI ≤ 100). Additionally, we distinguished the contributions of natural factors and human activities and analyzed the effects of land‐use changes in eight representative cities. We found the following: (1) The SOC stocks exhibit distinct trends with increasing UI, but when UI is low or high, an increase in UI is associated with decreasing SOC stocks (reductions of 6.8% and 5.4% at a depth of 30 cm; 6.4% and 3.2% at a depth of 100 cm, respectively). (2) Changes in human activities are the main drivers of SOC stock changes during urbanization. At low and medium urban intensities, the contributions of human activities reach 98% and 89%, respectively. Additionally, land‐use transitions are closely correlated with SOC stock changes, particularly in areas near the urban core, across different climate zones. (3) The response of SOC to urbanization varies across climatic zones. In water‐scarce arid climates, attention should be given to the negative effects of urbanization, and more targeted measures should be taken to enhance the carbon sequestration capacity of urban soils. This study provides valuable insights into the dynamic interplay between urbanization and SOC stocks, underscoring the need for tailored strategies to manage soil carbon in urban environments.

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Microclimatic factors and soil characteristics of Arroceros Forest Park in the City of Manila, Philippines

Cited by 3 publications

References 50 publications

The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system

The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system

Investigating the possibility of leakage detection in water distribution networks using cosmic ray neutrons in the thermal region

Dynamic Responses of Soil Organic Carbon to Urbanization: A Global Perspective

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