优发国际app

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2013-06-19 16:33:00 来源:首都优发国际app下载政务网

  (一)饮水思源
优发国际app  水是湿地的血脉,湿地是水的载体,中华民族赖以生存的长江、黄河等都是湿地。作为地球上淡水的主要储存库,人类生产和生活用水除少数来自地下水源外,绝大多数都来源于湿地。纵横的河流、广袤的湖泊、蜿蜒的溪流、零星的池塘以及连绵的滨岸带湿地中都有可以直接利用的水,甚至潜藏林下的森林泥炭沼泽湿地也可以成为淡水水源。

优发国际app  shuishishengwushengcunhuanjingzhongzuizhongyaodewuzhijichuzhiyi,youleshui,caiyougezhongshengwudexinchendaixie,caiyourenleidefanyanshengxi,caiyoushengjiangrandedaqianshijie。shuidegongji,congrenleideyinshui、nongyeguangaiyongshui、gongyehechengshiyongshuidenggegecengmianyingxiangzherenleiduiziyuandekaifaliyong、jingjishehuifazhandeguimoyushuiping,erhonglao、ganhan、shuiwuran、shuishengtaiehuadengxianxiangzhijieweixierenleishengcunheshengchanshenghuo。beijingshizhongduodezhaoze、heliu、kutangzhishuidoukebeizhijieliyong,shidizaishushui、chushuihegongshuifangmianfahuizhejudaxiaoyi,yetongyangyingxiangzhejingchengrenminderichangshenghuohegongnongyeshengchansuoxuyaodeshuiyuangongji。

  beijingwudashuixinianjunjingliuzongliang21.6yilifangmi,nianjunrujingshuiliang16.5yilifangmi,qizhongyongdinghe8.5yilifangmi,chaobaihe7.1yilifangmi,liangherujingshuiliangzhanrujingshuizongliangde94.5%(beijingshishuiwuju2009nianshuju)。ciwai,beijingyongyoumiyunshuiku、guantingshuiku、yeyahu、jinniuhu、guishuihudeng30duogekutangshidi,wanruokekemingzhudianzhuizhebeijingcheng,zongmianjichaoguo10pingfanggongli。qizhongmianjizuidademiyunshuikuconggenbenshangxiaochulechaobaihedeshuihai,bingdanfuzhegongyingbeijing、tianjinjihebeishengbufendiqugongnongyeyongshuiheshenghuoyongshuiderenwu,chengweishoudouzuizhongyaodeshuiyuan。yuxin《zhengdiaoqu》:“luoqishizhesiqishu,yinqiliuzhehuaiqiyuan。”shidiyushuishirenleikechixufazhandeshengmingxian,beijinglibukaishui,beijingjingjikechixufazhanbunengmeiyoushui,beijingyushidixixixiangguan。

  (二)天赐良“源”
  除了水资源,湿地还可以向人类提供食物、原材料、能源等各种直接和间接可利用资源,如稻米、鱼虾、莲、藕、菱、芡、芦苇、药材、水电、薪柴等多种天然的湿地资源。有些湿地生物富含葡萄糖、糖苷、鞣质、生物碱、乙醚油等生物活性物质,可以入药;有些则是轻工业的重要原材料,如芦苇可以用于造纸,众多芳香植物(如狭叶杜香)可用于制作香料。在北京的众多湿地中,1亩芦苇地每年的经济净收益为400 元左右,1亩莲藕的间接经济效益为年均1200元左右(2009年数据)。北京的农业、渔业、牧业和副业生产在相当程度上依赖于湿地提供的自然资源,湿地动植物资源的利用还间接带动了加工业的发展。

  shidigongjidezhuyaoshiwushidaomi。beijingdedaotiandaduoshufenbuzailishuiyuan(heliu、shuiqu、shuikudeng)jiaojindequyu,rubaihe、yongdinghe,jisuowei“longwangdi”,qizhongliulangzhuangdejingxidaojiuyiyuquanshanhexishandequanshuiguangai。suiransuizherenkoujuzeng、chengshifazhan、tudiliyongbianhuadengyuanyinerdaozhibeijingdaotianmianjizhuniansuojian,danbeijingdaotianshidibijingweibeijingshimintigongleyidingdeliangshigongying。yuleishibeijingshidijingjichanchuzuidadeshidishengwuziyuan,beijingshishejishuichanpinyangzhidekutangshidizongmianjiyuewei72pingfanggongli,qizhong84.6%fenbuzaichangping、shunyi、tongzhou、daxing、pinggu。2010nianbeijingshishangbanniandanshuiyangzhimianjiwei57.09pingfanggongli,qizhongchitangwei45.46pingfanggongli,zheiyishidiziyuanbaozhenglebeijingshuichanpinchanliangdeyouxiaogongji。shidiyuyechanpinbujinweibeijingrenminshenghuotigongledaliangshiwulaiyuan,yechuangzaolezhongyaodejingjijiazhi。ciwai,beijingshidineiyixieyeshengyuleisuiranzhijiejingjijiazhihendi,queshishidiniaoleidezhongyaoshiwulaiyuan,yefahuizhezhiguanzhongyaodezuoyong。

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