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- Title
云南程海湖泊系统响应富营养化与 水文调控的长期模式.
- Authors
刘园园; 陈光杰; 黄林培; 陈子栋; 黄广才; 刘晓龙; 李蕊
- Abstract
In Lhc conLexL of caLchmcnL dcvelopmcnL and climaLe change, anLhropogenic acLiviLics have significanLlv alLcred Lhc sue cession and funcLioning of fresh waLer ecosysLems. Combining Lhe scdimcnLarv records and modern survey daLa, vve rcconsLiiicLcd a 250-v car his Lor v of ecological changes in Chenghai Lake, aiming Lo assess Lhc long-Lcrm ecological changes in Changhai Lake in response Lo mulLiplc environmenLal sLrcsses, such as euLrophicaLion and hydrological HncLnaLion. Three sLagcs were idcnLificd for Lhe process of niiLrienL cnrichmenL leading Lo a long-Lerm increase in primary prod Lie Lion. JNHLricnL level was rclaLivelv low before 1970, increased gradually be L ween 1970 and 2000,wiLh an accclcraLing increase afLcr 2000. ITic waLer rcgnlaLion pmjccL enhanced waLer LLirbLilcncc and river flux during 1993----2000,which promo Led Lhc grow Lh of LLirbnlcncc- LolcranL Aulacoseira and influx of benLhic Nitzschia. The organic carbon cycling in Chenghai Lake was mainly driven by Lhe anLogeneLic inpuLs. The eiiLrophicaLion process dominaLcd Lhc long-Lerm shifts of dia- Lom assemblages followed by hydrological IIncLnaLion. Onr rcsiilLs illLisLraLed LhaL ecological rcsLora- Lion and caLchmcnL managcmcnL of Chenghai Lake noL only need Lo focus on Lhc conLrol of niiLrienL cnrichmenL and polkiLanL inpuL, buL also should consider hydrological rcgnlaLion and waLer level IkicLLiaLion.
- Subjects
CARBON cycle; NITZSCHIA; LAKES; RIVERS
- Publication
Yingyong Shengtai Xuebao, 2020, Vol 31, Issue 5, p1725
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.202005.037