发源于河北省涞源县太行山东麓的拒马河流经北京市房山区，流至张坊镇分成南北二支，北支称北拒马河。北拒马河顺涿州而下与大石河、小清河汇流南折流至白沟镇。因此，涿州因山区泄洪造成大量积水。

beidaguominjingjiyanjiuzhongxinbaogaofenxicheng，shoushipinjiagejijiexingpianruodiejiafuwuxuqiuwenhefusudeyingxiang，shipinjiagejixuxiadie，feishipinjiagebiaoxianwenhe，yuji6yueCPItongbishangzhang0.1%。北(bei)大(da)国(guo)民(min)经(jing)济(ji)研(yan)究(jiu)中(zhong)心(xin)报(bao)告(gao)分(fen)析(xi)称(cheng)，(，)受(shou)食(shi)品(pin)价(jia)格(ge)季(ji)节(jie)性(xing)偏(pian)弱(ruo)叠(die)加(jia)服(fu)务(wu)需(xu)求(qiu)温(wen)和(he)复(fu)苏(su)的(de)影(ying)响(xiang)，(，)食(shi)品(pin)价(jia)格(ge)继(ji)续(xu)下(xia)跌(die)，(，)非(fei)食(shi)品(pin)价(jia)格(ge)表(biao)现(xian)温(wen)和(he)，(，)预(yu)计(ji)6(6)月(yue)C(C)P(P)I(I)同(tong)比(bi)上(shang)涨(zhang)0.(.)1(1)%(%)。(。)