THE LANDSCAPE ECOLOGY OF METRO MANILA
by Antonio C. Antonio
July 2, 2013
The most common definition: “Landscape Ecology is the science of
studying and improving relationships between ecological processes in the environment
and particular ecosystems. This is done
within a variety of landscape scales, development of spatial patterns and
organizational levels of research and policy.”
I have chosen to write about Metro Manila as my landscape for the following
reasons: (a) It is where my family and I
live; (b) It is the most modern metropolis in the country; and, (c) It is the
most inhabited area in the Philippines. It may not be the best cluster of
cities in the world, in terms of urban planning, but this is my living
environment and it would be best to focus on it… and, perhaps, understand and
appreciate it better.
Metro Manila is composed of 16 cities and 1 municipality… namely; the
cities of Manila, Caloocan, Las Pinas, Makati, Malabon, Mandaluyong, Marikina,
Muntinlupa, Navotas, Paranaque, Pasay, Pasig, Quezon, San Juan, Taguig and
Valenzuela and the municipality of Pateros.
Composition, structure, function and change are just some of the more
important principles in understanding Landscape Ecology. In general:
·
COMPOSITION involves the genetic makeup of populations, identity and
abundance of species in the ecosystem, and the different types of communities
present.
·
STRUCTURE involves the variety of habitat patches or ecosystems and
their patterns.
·
FUNCTION involves climactic, geological, hydrological, ecological and
evolutionary processes such as seed dispersion or gene flow.
·
CHANGE involves the continual state of flux present in ecosystems.
It is also important for to learn and understand the three main
components of a landscape… namely:
·
MATRIX which is the dominant component in the landscape, is the most
extensive and connected landscape type, and it plays the dominant role in
landscape functioning.
·
PATCHES are nonlinear surface areas that differ in vegetation and
landscape from their surroundings. They are units of land or habitat that are
heterogeneous when compared to the whole.
·
CORRIDORS are the strip of land that differs from the matrix on either
side. Corridors are areas that link patches together, serving as highways or
conduits for organisms to transfer or move from patch to patch.
Using these principles and main components of a landscape, and applying
such to my chosen area the following were observed using Google Earth image of
Metro Manila:
1. Metro Manila is a
thickly populated area with infrastructure (buildings, houses and pavement)
dominating the landscape which could be considered as its matrix.
2. Metro Manila is one
big habitat patch or ecosystem.
3. No distinct corridors
could be identified for Metro Manila.
4. The weather in Metro
Manila is characterized to be generally hot and humid.
5. The function and
structure of Metro Manila is mainly residential and business.
6. On the
North-Northeastern part of Metro Manila is a strip of blue (indicating water)
surrounded green patch (indicating a forest area) which is the La Mesa Dam and
La Mesa Eco Park. Further North is Angat Lake.
7. The western boundary
of Metro Manila is Manila Bay and on the Southeast is Laguna de Bay.
A difference in color --- blue for Manila Bay and light moss green for Laguna
de Bay --- seems to indicate the deteriorated state of Laguna de Bay.
8. Change in landscape
in Metro Manila is characterized by fast expansion to the Southern part towards
Laguna and Cavite and to the East towards Rizal.
With a pollution index that is slightly above normal levels, Metro
Manila is really not a “healthy” place to live in. However, people have a
tendency to flock in it since it is the where the center of business and
economic activities are… not to mention that Metro Manila is also the center
for socio-political activities considering that our central government is
located here and it is also where the better schools are located. Better
urban planning and strict adherence to zoning laws and regulations could still
make Metro Manila a better place to live in.
Just my little thoughts…
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