scholarly journals Existing land use and extent of lead (Pb) contamination in the grazing food chain of the closed Carmona sanitary landfill in the Philippines

Heliyon ◽  
2019 ◽  
Vol 5 (5) ◽  
pp. e01680 ◽  
Author(s):  
Richard Dein D. Altarez ◽  
Noel A. Sedigo
Keyword(s):  
Land Use ◽  
Food Chain ◽  
The Philippines ◽  
Sanitary Landfill ◽  
Pb Contamination ◽  
Grazing Food Chain

Stable isotopic evidence for the differential contribution of diazotrophs to the epipelagic grazing food chain in the mid-Pacific Ocean

2018 ◽  
Vol 27 (12) ◽  
pp. 1467-1480 ◽  
Author(s):  
Sachiko Horii ◽  
Kazutaka Takahashi ◽  
Takuhei Shiozaki ◽  
Fuminori Hashihama ◽  
Ken Furuya
Keyword(s):  
Pacific Ocean ◽  
Food Chain ◽  
Isotopic Evidence ◽  
Stable Isotopic ◽  
Differential Contribution ◽  
Grazing Food Chain

SWAT-based sediment yield simulation with mining land-use change scenario in Lanuza Bay, Philippines

2020 ◽  
Author(s):  
Peter Jeffrey Maloles ◽  
Adonis Gallentes ◽  
Cesar Villanoy
Keyword(s):  
Land Use ◽  
Sediment Yield ◽  
Assessment Tool ◽  
Marine Protected Area ◽  
Swat Model ◽  
Time Lag ◽  
The Philippines ◽  
Marine Biodiversity ◽  
Change Scenario ◽  
Mining Operations

<p>The Philippines is known for its rich marine biodiversity and is deemed as the apex of the world’s coral triangle. However, sediment yield studies and river discharge measurements in the country are sparse if not non-existent. High sediment rates have detrimental effects on water quality and consequently to coral reef health and marine biodiversity. Thus, modeling of runoff and sediment yield at a watershed level is important in assessing coral community environments.</p><p>In this study, a Soil and Water Assessment Tool (SWAT) based sediment yield simulation was done for Lanuza Bay-- a site with high productivity but increasing mining activity. Two simulations were conducted. The first utilized a land-use map before January 2011 and was made to run from January 1998 to August 2018 in order to simulate a scenario in which mining operations did not occur in the area. The second simulation utilized an updated land-use map that incorporated mining sites from January 2011 to August 2018.</p><p>SWAT model results indicate that slope class was the primary determinant of erosion rates (slope band > 20%). The study suggests that consecutive precipitation occurrences affected soil erodability and induced a time lag between precipitation and sediment yield peaks. The highest contributors to sediment yield at a sub-basin level were identified to be areas adjacent to or coinciding in mining or excavation sites. Comparing the scenarios with and without mining, mining contributed to 4% of the increase in the watershed’s total annual sediment yield.</p><p>Qualitative and historical validation shows reasonable agreement between simulated values and satellite images. The output of this study can be used as a science-based reference in crafting laws and policies for land-use management and Marine Protected Area (MPA) planning.</p>

scholarly journals The implications of remittances for agricultural land use and fuelwood collection: Evidence from the remaining forested landscapes in the Philippines

2021 ◽  
Author(s):  
Eliza Zhunusova ◽  
Melvin Lippe ◽  
Anastasia Lucy Yang ◽  
Sven Günter
Keyword(s):  
Land Use ◽  
Rural Communities ◽  
Agricultural Land ◽  
Rural Households ◽  
The Philippines ◽  
The Sustainable Development ◽  
Variable Approach ◽  
Forested Landscapes ◽  
Environmental Goals ◽  
The Impact

Abstract Despite the projected sharpest decline in remittances in history due to the global economic crisis induced by the Covid-19 pandemic, remittances are expected to remain an important source of external financing for many developing countries. The Philippines is among the top five recipients of remittances worldwide, while outmigration is an important livelihood strategy for rural communities in the country due to rapid population growth, poor employment opportunities, and scarce agricultural land. Migration and remittances can influence smallholder land use with potential implications on forest resource use through an impact on household income and household decisions on local activities. However, little attention has been paid in previous research to how remittances relate to changes in rural households’ land use and their implications for forests. The goal of this study is to investigate the linkages between the inflow of both international and internal remittances and rural households’ land use in forested landscapes in the Philippines. In order to do that, we use the data from 1,024 household surveys and an instrumental variable approach to investigate the impact of remittances on fuelwood use and on the area cultivated by perennials and cereals. The findings of this study show that remittances positively influence the size of land planted by perennials and reduce households’ reliance on fuelwood use. Our findings provide an improved understanding of the links between migration - remittances - natural resource management, which will become especially relevant as countries struggle to deal with the economic fallout associated with Covid-19. We argue that demographic policy measures should play a bigger role in Land Use, Land-use Change, and Forestry (LULUCF) negotiations than before. Moreover, global sustainability agendas such as the Sustainable Development Goals (SDGs) should recognize the impacts of migration on natural resources to help bridge the gap between developmental and environmental goals.

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