Abstract:
In chapter 01. Environmental impacts of landscape materials used in landscape
designs in Sri Lanka such as concrete, steel, timber, glass, clay and plants are described. In
this chapter, the effect of exotic plants on eco systems and ecological influences of hard
landscape materials are discussed.
The concept of Sustainability and Sustainable Landscape Design are explained in
Chapter 02. Sustainable landscape materials and techniques are further discussed in this
chapter.
Chapter 03 contains case studies. The traditional Sri Lankan landscape of Sigiriya and
the modern Sri Lankan landscape of the Havelock city project are presented in ecological
review in this chapter.
The study concludes in chapter 04 by emphasizing the importance of the use
of sustainable materials and techniques in landscape designs. The environmental, economic
and social consequences of ignoring resource depletion, global warming and associated
climate change are likely io be ;he defining world issues of the 21st century and there is a
strong link between such adverse environmental change, and potential social and economic
collapse. After 150 years of industrialization, the developed world is it seems, principally
responsible for the higher global temperatures that we are experiencing today through
increased C02 and other greenhouse gas emissions. This rise in temperature and the
subsequent changes in climate are set to profoundly alter the world’s ecosystems, the places
we live, and ultimately, how we live in the world. We must ensure that we move quickly to a
more sustainable way of living.
The term of sustainability is defined as “improving the quality of human life while
living within the carrying capacity of supporting eco-systems". Unsustainable practices have
badly impacted on ecosystems and environments. The use ofthe sustainability concept in the
landscape industry is mainly concerned in this study.
