03926nam a2200277 a 450000500170000000800410001703500150005810000220007324501060009526000570020130000550025849000270031350001500034050200580049052026190054865000380316765000430320570000340324870000490328270000410333170000450337270000430341771000640346081000590352485600650358320260818085614.0140619s2012    th ad  |||   |000 0 eng d  a.b121342721 aPradhan, Nirakar 10aCumulative effects assessment of impacts on a lake catchment area :bcase study of Inle Lake, Myanmar  aPathum Thani :bAsian Institute of Technology,c2012  a117 p. :bill., maps, charts  +e1 online resource1 aThesis ;vno. EV-12-14  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering and Management  aThesis (M.Eng.) - Asian Institute of Technology, 2012  aMultiple impacts (effects) on Inle lake ecosystems (Myanmar) examined by recording their strength  and  interaction  in  the  lake  catchment  area.  Numerous  impacts  affect  Valued  Ecosystem Components (VECs) over space and time thus resulting in cumulative impacts in  environmental  management.  Cumulative  nature  of  the  impacts  is  a  major  issue.  The  present   study   proposes   a   conceptual   framework   for   advancing   Cumulative   Effects   Assessment  (CEA). The  study  used  a  participatory  appraisal  technique  for  quantifying  impacts and impact interactions. A combination of assessment tools at spatiotemporal scale used  to  establish  the  CEA  framework  by  steps  as  follows:  (i)  scoping  of  actual  and  potential drivers of change and VECs, (ii) participatory appraisal and expert consultations ,(iii)  quantifying  impact  strengths  and  interactions,  (iv)  field  surveys  (wetland  state,  area  characteristics, etc) and water quality assessment by in-situ analyses and Remote Sensing, (v) data analyses (Rapid Impact Assessment - for impact significance, Loop Analysis {u2013} for impact interactions) and, (vi) formulate strategies for cumulative effects (impacts) control. The tools selected for the developing CEA framework individually internationally verified in assessments of similar ecosystems. The systemic approach of the CEA framework tested on  Inle  lake  catchment  area  proved  to  be  a  rapid,  straightforward,  reliable,  and  thorough  assessment of the lake{u2019}s past, present and future state. The ecosystem components ranked based  on  relative  importance  and  impacts  (or  stressors)  quantified  based  on  relative  significance to indicate the status of the lake. Effects on lake water resources demonstrated serious deterioration of water quality indicating  that  lake  ecosystem  is  critically  losing  its  resilience  to  withstand  ever-increasing  impacts  within  the  catchment  area.  Moreover,  unsustainable   waste  disposal,  floating  garden  agriculture,  agricultural    practices,  sedimentation,  deforestation,  excessive  exploitation  (overfishing,  etc),   infrastructure   development and invasion of exotic species act cumulatively. If the anthropogenic pressure continues to increase at the present pace then the system will be doomed in another decade or  so.  The  study  concludes  that  impact  faced  by  Inle  lake  ecosystems  are  of  cumulative  nature   and   it   requires   comprehensive   mitigation   measures   planned,   executed   and   monitored both at local and strategic levels. 0aWater qualityzMyanmarzInle Lake 0aWetland managementzMyanmarzInle Lake1 aShipin, Oleg V.,eChairperson1 aAnnachhatre, Ajit P.,eExamination Committee1 aEbbers, Theo,eExamination committee1 aDabbadie, Lionel,eExamination committee1 aDuboz, Raphael,eExamination Committee2 aADB-Japan Scholarship Program (ADB-JSP),eScholarship donor2 aAsian Institute of Technology.tThesis ;vno. EV-12-14  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B02522