水庫樞紐
馮家山水庫(ku)庫(ku)區流經千陽縣(xian)、鳳(feng)翔(xiang)區和陳倉區。是(shi)一座以灌溉(gai)為主,兼有防(fang)洪(hong)(hong)、發(fa)(fa)電(dian)、養(yang)殖等綜合利(li)用的(de)大(da)型水利(li)樞(shu)紐(niu)。水庫(ku)總庫(ku)容(rong)(rong)(rong)4.13億立方(fang)米(mi)(mi),有效庫(ku)容(rong)(rong)(rong)2.86億立方(fang)米(mi)(mi),防(fang)洪(hong)(hong)庫(ku)容(rong)(rong)(rong)0.92億立方(fang)米(mi)(mi),死庫(ku)容(rong)(rong)(rong)0.91億立方(fang)米(mi)(mi)。水庫(ku)正常(chang)水位(wei)712m,回水至(zhi)干(gan)陽縣(xian)城關長17.5km,水庫(ku)水面(mian)17.7平(ping)方(fang)公里。水庫(ku)樞(shu)紐(niu)防(fang)洪(hong)(hong)標準為百年一遇(yu)洪(hong)(hong)水(3400立方(fang)米(mi)(mi)/秒)設(she)計,千年一遇(yu)洪(hong)(hong)水(7200立方(fang)米(mi)(mi)/秒)校核,二千年一遇(yu)洪(hong)(hong)水(8300立方(fang)米(mi)(mi)/秒)情況下(xia)保壩。 水庫(ku)樞(shu)紐(niu)工(gong)程(cheng)由攔河大(da)壩、右(you)岸(an)(an)壓力泄洪(hong)(hong)洞(dong)、非常(chang)溢(yi)(yi)洪(hong)(hong)道、古河道防(fang)滲工(gong)程(cheng)和左岸(an)(an)明流溢(yi)(yi)洪(hong)(hong)洞(dong),灌溉(gai)、發(fa)(fa)電(dian)輸水洞(dong)以及電(dian)站等七部分(fen)工(gong)程(cheng)組(zu)成(cheng)。
水庫灌區
灌(guan)(guan)區(qu)西起金陵河(he)(he)、東至漆(qi)水河(he)(he),北依(yi)喬(qiao)山,南接(jie)寶(bao)雞峽(xia)灌(guan)(guan)區(qu)。東西長約80km,南北寬約18km。灌(guan)(guan)溉寶(bao)雞、鳳翔、岐山、扶風(feng)、眉縣、永壽、乾縣七縣的旱原,設計(ji)面積為(wei)(wei)126萬(wan)(wan)畝(mu)(mu)(mu)(mu),施工中擴大(da)為(wei)(wei)129萬(wan)(wan)畝(mu)(mu)(mu)(mu),施工后期控(kong)制面積為(wei)(wei)136萬(wan)(wan)畝(mu)(mu)(mu)(mu)。 灌(guan)(guan)區(qu)以干河(he)(he)為(wei)(wei)界,分為(wei)(wei)東、西兩(liang)個灌(guan)(guan)區(qu)。西灌(guan)(guan)區(qu),為(wei)(wei)抽水灌(guan)(guan)溉,面積15.2萬(wan)(wan)畝(mu)(mu)(mu)(mu)。東灌(guan)(guan)區(qu),灌(guan)(guan)溉120.8萬(wan)(wan)畝(mu)(mu)(mu)(mu),其中自流灌(guan)(guan)溉65萬(wan)(wan)畝(mu)(mu)(mu)(mu),其余為(wei)(wei)抽水。自流灌(guan)(guan)區(qu)每畝(mu)(mu)(mu)(mu)毛(mao)用水定(ding)額(e)為(wei)(wei)325立(li)方米,抽水灌(guan)(guan)區(qu)每畝(mu)(mu)(mu)(mu)毛(mao)用水定(ding)額(e)為(wei)(wei)218.4立(li)方米。
形態描述
馮家山水庫(陜西) 北(bei)方(fang)區, 面積(ji)1.500萬畝, 平均深度24.00米, 最大深度50.00米,生態特征 浮游(you)生物(毫克/升)
浮(fu)植(zhi)現存量1.160, 浮(fu)植(zhi)優勢種甲(jia)藻、硅藻, 浮(fu)游動物量0.910.
浮游植(zhi)物生物量及優勢藻類的季節(jie)變化(hua)(毫克/升)
1981-1982年, 春(chun)(chun)季(ji)生(sheng)物量(liang)0.92, 春(chun)(chun)優勢(shi)藻(zao)(zao)(zao)類(lei)硅藻(zao)(zao)(zao), 夏季(ji)生(sheng)物量(liang)0.71, 夏優勢(shi)藻(zao)(zao)(zao)類(lei)甲藻(zao)(zao)(zao), 秋季(ji)生(sheng)物量(liang)0.50, 秋優勢(shi)藻(zao)(zao)(zao)類(lei)甲藻(zao)(zao)(zao).
水庫的浮游(you)植物生物量(毫克(ke)/升)及其組成
浮植(zhi)生(sheng)物量(liang)1.160, 硅藻(zao)占(zhan)門(men)(men)(men)27.6%, 綠(lv)藻(zao)占(zhan)門(men)(men)(men)16.4%, 金(jin)藻(zao)占(zhan)門(men)(men)(men)4.3%, 甲藻(zao)占(zhan)門(men)(men)(men)44.8%, 裸藻(zao)占(zhan)門(men)(men)(men)4.3%, 藍藻(zao)占(zhan)門(men)(men)(men)2.6%
水(shui)庫浮(fu)游(you)動(dong)物生物量與季節變化(毫克/升(sheng))
原生(sheng)生(sheng)物(wu)量0.26,枝角生(sheng)物(wu)量0.28, 橈足生(sheng)物(wu)量0.39, 總(zong)生(sheng)物(wu)量0.91.
營養類型
植物生量物中, 植物優勢種中, 無機(ji)氮(dan)富,COD富, 水質營養狀況屬于中營養型。