基于psr模型的河口生态安全评价指标体系研究-core.pdfVIP

30 1 V o l. 3 0 , N o. 1 2 0 1 1 0 2 MA R INE ENV IRONM ENTA L SC IEN CE February . 2 0 1 1 PSR 1, 2 1 2 杨 志 , 赵冬至, 林元烧 ( 1. , 116023; 2. , 36 1005 : P SR , P SR , , , P SR , P SR , : PSR ; ; : X 17 1 : A : 20 11 0 10 13904 The evaluating index sy stem for estuary ecosy stem safety based on PSR m odel 1, 2 1 2 YANG Zh i , ZHAO Dongzhi , L IN Yuanshao ( 1. N at ional M arine Env ironm en talM on itoring C enter, D al ian 116023, C h ina; 2. Co llege of O ceanography and E nvironm ental Science of X iam en U n iversity, X iam en 36 1005, C h ina Ab stract: PSR m odel is an ef ficient model for evaluat ing and m an aging ecosy stem and h as been u sed m ore and more popu lar in the f ield of ecosy stem assessm en t in recen t y ears. T h is paper in troduced the origin, theories and types of P SR m ode,l as w ell as its appl ica tion in the f ield of ecosy stem assessm en t, especially the assessm en t of basees tuary and ocean ecosy stem safety, searched for assessing the estuary ecosy stem safety. Pract icab ility of PSR m odel in th e assessm ent of estuary ecosystem safety w as analyzed. It con structed the index sy stem of estuary ecosy stem safety assessm ent and pu t forw ard som e prob lem s ab out th is m od el eventually. K ey word s: PSR m od e;l ecolog ica l safety evaluation; estuary PSR ( P ressureS tate