EESC13H3 Lecture Notes - Lecture 8: Strategic Environmental Assessment, Scenario Analysis
14 Dec 2016
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Lecture 08- cumulative & strategic environmental assessment: definitions: Cumulative environmental effect: (cid:862)the total effe(cid:272)t, i(cid:374)(cid:272)ludi(cid:374)g di(cid:396)e(cid:272)t a(cid:374)d i(cid:374)di(cid:396)e(cid:272)t, o(cid:374) a gi(cid:448)e(cid:374) (cid:396)esou(cid:396)(cid:272)e, e(cid:272)osyste(cid:373), o(cid:396) hu(cid:373)a(cid:374) (cid:272)o(cid:373)(cid:373)u(cid:374)ity of all a(cid:272)tio(cid:374)s take(cid:374). (cid:863) Cumulative effect: (cid:862)a change in the environment caused by multiple interactions among human activities and natural p(cid:396)o(cid:272)esses that a(cid:272)(cid:272)u(cid:373)ulate a(cid:272)(cid:396)oss spa(cid:272)e a(cid:374)d ti(cid:373)e. (cid:863) Cumulative effects assessment: (cid:862)a syste(cid:373)ati(cid:272) p(cid:396)o(cid:272)ess of ide(cid:374)tifyi(cid:374)g, a(cid:374)alyzi(cid:374)g, a(cid:374)d e(cid:448)aluati(cid:374)g (cid:272)u(cid:373)ulati(cid:448)e effe(cid:272)ts. (cid:863) Cumulative effects management: (cid:862)the ide(cid:374)tifi(cid:272)atio(cid:374) a(cid:374)d i(cid:373)ple(cid:373)e(cid:374)tatio(cid:374) of (cid:373)easu(cid:396)es to (cid:272)o(cid:374)t(cid:396)ol, (cid:373)i(cid:374)i(cid:373)ize, o(cid:396) p(cid:396)e(cid:448)e(cid:374)t the ad(cid:448)e(cid:396)se (cid:272)o(cid:374)se(cid:395)ue(cid:374)(cid:272)es of (cid:272)u(cid:373)ulati(cid:448)e effe(cid:272)ts. (cid:863: typical sources and types. Sources pf cumulative effects: point source vs. non- point source (ex. Discharging pipe, oil spill or underground storage tanks vs. spraying pesticides & agricultural runoff) Sources of change that contribute to cumulative environmental effects: space crowding. High spatial density of activities or effects: time crowding. Events frequent or repetitive in time (deforestation and replanting have to be in balance in terms of time: time lags.
