阜康绿洲生态系统健康的的研究

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1、田、居民地大面积增加，湿地面积有所增加，草地、林地、盐碱地在不同时期有不同程度的变化；绿洲生态系统初级生产力和生态系统服务价值都明显增加，整个地区景观多样性指数有所降低，人口密度有所增加，人类活动对绿洲生态系统的压力呈波动趋势。通过压力一状念一反映指标体系，得出在17年的时间尺度中绿洲生态系统健康状况变化主要是由人为因素驱动，影响绿洲生态系统健康变化的主要因子是经济因素和人口因素，人类活动对生态系统压力发生变化时，人类根据生态系统表现的反映适当调整开发策略，使绿洲生念系统健康状态在波动的过程中不断提高；同时提出了阜康生态系统建设的思考，指出

2、只有很好地保持绿洲生态系统健康，走区域可持续发展的道路，才能实现干旱区绿洲经济与社会的最大效益。关键词：阜康绿洲；生态系统健康；评价；遥感EvaluateonEcosystemHealthofFukangOasisAhstractStudyingthehealthofXinjiangoasisecosystemandfindingthedisaceordedfactors，whichattaintheunificationoftheeconomydevelopmentandenvironmentprotection，isthekeyofre

3、alizingthearidareaoasiseconomyandsocietysustainabledevelopment，TakingtheFukangoasisasthestudyobject，basingonecosystemhealththeoryandcombiningtheoasisecosystemstructureandfunction，thispaperdesignsecosystemhealthestimateindexsystemofFukangoasis，discussestheinfluenceofhumanac

4、tivitiesbyRSandGIStechnologyandtakingthepress——state—-reflectionindexastheconceptualframeandevaluatesitshealthystatusfrom1987to2003：(1)From1987to2003Fukangoasisecosystemhealthintheoveralltrendofimprovement．primaryproductivityoasisecosystemsandecosystemservicesworthallmarke

5、dincrease．(2)From1987to1993Fukangoasisecosystemhealththresholdsin【0．2-0．4】scopeofthehealthstatusofpooroasisecosystem，thevitalityofthesystemlow,outsidepressure，ecologicalfunctionshavebeenunabletomeettheneedsofthemaintenanceofoasisecosystems，thedegradationofoasisecosystemsha

6、sbegun．(3)From1994to2003Fukangoasisecosystemhealththresholdsin【0．4-0．6】scopeoasisecosystemhealthby1994hadrisentothepreviousstateofpoorhealthstatusingeneral．Oasisecosystemsstructured，andfairlydynamicsystem，butoutsidepressure，thesystemisstable，playoasisbasicecologicalfunctio

7、ns．Theresearchshowsthatduring17yearstheecosystemcharactersofstudyareachangedobservably,farmlandandresidentialareaandmarshincreased．TherehaschangesofvariousdegreeindifferentperiodsOnthemeadow，forestland，saltandalkalineland；Theelementaryproductivityofoasisecosystemandvalueof

8、ecologicalserviceofthesystemaIlincreaseobviously．thediversifiedindexoftheviewofthewholear