Case study report witton creek catchment Essay Example

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Case study report on Witton Creek catchment

Case study report on Witton Creek catchmentTitle :

Case study report on Witton Creek catchment

Introduction

Witton Creek catchments found in Australia occupies 407 hectares. It has been influenced by the urban development especially after the years after the war. Residential premises being developed phased out pineapple and dairy farms. The Kenmore and Indooropilly were developed on this land. The land is endowed with minerals such as gold and quartz which have made the place a mining area. This paper presents a case study report on Witton Creek in which a systems model and systems analysis will be developed.

Systems characteristics

The Title of the system is ‘Witton Creek catchment management.’ The system includes information and notes about Witton creek catchment. This information touches on the flora, fauna, biodiversity, activities and management of the creek catchment. It also touches on the level of conservation and activities that have been carried out to shape the area and give it its present face Tyson (2001).

Management decisions and activities

Actors and institutions
A plan for management was unleashed and the site was put into 11 areas to help reduce the risks of fire, soil erosion and weed control. Management seeks to restore all lost flora and fauna and the water sources. Maintenance activities are carried out every month to help sustain the creek. This is so since the last two centuries there was much destruction of the natural flora, fauna and landscape of the area. The stake holders of Witton Creek cooperate well with neighbors and together they seek to conserve the creek. Grazing is done by nearby animal keepers. Planting has been prohibited since rehabilitation is underway and is aimed at restoring the creek. Slashing is done to get rid of weeds and to control growth of grass. Weed management is done by spraying, burning and dumping them away from the area. Farming still takes place around the creek by neighboring land owners. Farming within the creek has been stopped and water pumping in the area is prohibited Trotter (2002).

A number of actors are involved in the creek catchment. They include the Curbella-Witton catchments Network, habitat Brisbane groups which are over ten, City council of Brisbane and the community around. The University of Queensland operates in the area as well since they have a training ground for students at the site of a former mine. Bush care groups are also instrumental in conservation activities in the catchment area Tyson (2001).

Resources and flows

Soils alternate from shallow in the high places to deep in the lower places and are prone to flooding. There is great diversity in both flora together with fauna within the area. About 44 local species of plants have been found in the catchment. There is tall wood land and tall open forest. Wood lands have Eucalyptus creba, Angophora species, Corymbia, E. Tereticornis. Few portions of rain forest can also be found. These make up the over storey vegetation of the area. Under storey vegetation are abundant with many species remaining short and covering the ground Tyson (2001). The small short species are important for reducing soil erosion and also provide food and habitats for the small animals.

Surveys done on wildlife done on the area showed that there exists “a short eared bush tail possums” colony. Others included burtons lizard snake, eastern snakes, carpet snakes, eastern whip birds, white head pigeons, swampy wallaby, king parrots, pheasant coucals, squirrel gliders and tawny frogmouths. Dung beetles have also been discovered there. There is a mine site on 7.5 hectares of land which has several introduced species of plants such as camphor laurel, Chinese elms, Cat’s claw creeper, Asparagus fern, Duranta and Lantana. Water is abundant in the river and the creeks especially during the rainy season. Many buildings collecting water from their roofs just channel in into the storm waters.

Heavy down pours cause flooding in Brisbane River which results into erosion of loose soil from the catchment area Trotter (2002). Flooding is a common feature in the whole of Brisbane area. It is however being increased by the various structures and buildings which collect water on the roofs.

Time and space

Flooding on the creek limits development and even construction. Every year short lasting floods take place on the flats of the creek. Major floods are infrequent and caused by the Brisbane River. Floods from the river since 1841 have amounted to 14 with 7 of them being serious ones Trotter (2002). The place was first inhabited by two groups the Turrbal and Jagera before the Europeans came. In the 1860s the land was surveyed and exploitation of the forests started which led to much destruction of the original structure of the area. Earliest exploitation involved harvesting timber to be transported by river to Ipswich or Brisbane. Seasons in the catchment area vary from rainy to dry. Thunderstorms and heavy rain are experienced in summer while the winter is dry.

Construction has been a great disturbance in the area especially in the places where urban development has been done. Activities like earth works, irrigation, and transportation of materials for landscaping such as soils, rocks, mulch and fertilizer. Flood plains on the creek have been leveled and converted into car parks and playing fields.

case study report witton creek catchment

http://www.cubberlawitton.org/bushcare_groupsBrisbane; the Witton Creek Catchment area

The witton creek catchment soils were formed from parent materials such as phyllites, little granite, metamorphosed sedimentary rocks, river and local alluvium. Soil groups are five including tenosols found at the catchment’s top and hydrosols which have poor drainage on the local creeks. The Brisbane River has deep alluvium soils called Dermosols around Fig tree pocket. Between these there exists shallow and badly drained Chromosols. Poor drainage results from the nature of the soils.

Changes in the catchment area are geared toward more rehabilitation of the creek to increase its ecological value which has been destroyed over time. Fencing will be done to reduce interference and illegitimate access Trotter (2002). Soils dictate the type of vegetation to be find on various parts of the catchment. It also determines the level of erosion taking place.

2000. University of Queensland.
University Experimental Mine at Indooroopilly – Site Development Plan
References

<http://www.jkmrc.uq.edu.au/Images/History-Poster-.jpg.>Experimental Mine History:

Geological Society of Australia, Queensland DivisionRocks and Landscapes of Brisbane and IpswichWilmott, W. and Stevens, N. (1992). 

Greening Australia Queensland.
Cubberla and Witton Creek Community habitat restoration paln: a blueprint for community action in protecting and restoring vegetation on public land in Cubberla and Witton Creek catchments;Tyson, D. Greening Australia Queensland (2001),

  Cubberla and Witton Creeks:Trotter R., Cubberla-Witton Catchments Network (2002).

Cubberla-Witton Catchments Network;
their physical characteristics and land use over time : proceedings of symposia held in 2000 and 2001 on the Cubberla and Witton Creek catchments;

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