environmental assessment n.
Skip this Video
Loading SlideShow in 5 Seconds..
Environmental Assessment PowerPoint Presentation
Download Presentation
Environmental Assessment

Loading in 2 Seconds...

play fullscreen
1 / 16

Environmental Assessment - PowerPoint PPT Presentation

  • Uploaded on

Environmental Assessment. Pressure-State-Response & use of Indicators. The Livestock & Environment Toolbox uses the Pressure-State-Response (PSR) Framework. The PSR framework was developed in the early 1990s and forms the basis for Environmental Assessment and Reporting, e.g. SOE reports.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'Environmental Assessment' - kasi

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
environmental assessment

Environmental Assessment


& use of Indicators


The Livestock & Environment Toolbox uses the Pressure-State-Response (PSR) Framework

  • The PSR framework was developed in the early 1990s and forms the basis for Environmental Assessment and Reporting, e.g. SOE reports
  • Indicators form an integral part of PSR
  • Quantify and Simplify phenomena
  • Inform and Alert about changes taking place in systems

WARNING function

  • Their use / utility depends on the context
  • Should also be designed to help decision makers understand why change is taking place
use of indicators
Use of Indicators

How much ?

  • Performance evaluation

In relation to a defined Max / Min quantity

  • Thresholds

Analysis of cause & effect

  • Causal Loops
  • Model construction & Scenario analysis

What If ?

Without good monitoring data, it is not possible to develop indicators
  • Performance measures imply that targets are set, e.g. quotas, or acceptable maximum levels
  • Indicators must take into account different locations, people, cultures and institutions.
  • Sets of indicators evolve over time, and are seldom, if ever, complete
  • Indicators tend to reduce uncertainty, but not eliminate it
  • Indicators play an important part in influencing human impact on the environment operate.
pressure state response

There are a number of different diagrams illustrating PSR


Condition of the Environment

Human Activities



the environment

Response to Prevent / Reduce Negative Impact

Adapted from: Pinter et al, UNEP, IISD & Ecologistics International, 1999

ongoing development of psr

DSR:Driving Force - State - Response

DPSIR: Driving Force - Pressure - State - Impact - Response

Ongoing Development of PSR

PSR:Pressure - State - Response


The pressures Human Society puts on the environment, as a result of:

  • human activities
  • trade, and consumption

These activities, or Driving Forces, result in direct pressures on the environment such as:

  • pollution
  • resource depletion
  • Condition (typically of the environment) that results from the pressures, e.g. pollution levels, degree of land degradation or extent of deforestation
  • These changed conditions may, in turn, affect human health and well-being
  • One therefore needs an understanding of both the State of the Environment as well as the direct and indirect effects - or Impacts

Relates to actions taken by society either individually or collectively,

  • to prevent or mitigate against negative environmental impacts,
  • to correct existing damage,
  • or, to conserve natural resources
responses include
Responses Include
  • Regulatory action & Instruments of Policy
  • Public opinion & consumer preference
  • Changed management strategies
  • Environmental or research expenditure
  • Provision of environmental information

Do Not Include

Coping Strategies: These tend to be State or Impacts, are less easy to influence with policy instruments, and are symptoms rather than causes


Condition of the Environment

Human Activities



the environment

Indicators of state should be designed to be responsive to the pressures and at the same time facilitate corrective action

Response to Prevent / Reduce Negative Impact

indicators the psr framework
Indicators & the PSR framework


Improved techniques,

Better control over use,

Trypanotolerant varieties


Levels of active residues in dung .

 Dung Beetle mortality

 Reduced nutrient cycling



Pesticide Use e.g. Deltamethrin as Pour-on for control of tsetse