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文章来源:优发国际_优发国际官方登录

  植物氮(N)素获取策略在调节植物生长和生态系统功能方面发挥着重要作用。通常认为植物对养分的需求和获取主要发生在生长季,而在光合作用不活跃、植物生长缓慢的非生长季,植物对养分的吸收非常有限,这使得有关森林植物氮素获取的研究大多局限于生长季。然而,已有证据表明,植物在非生长季仍然具有相当大的氮吸收能力和养分需求。忽视季节变化可能引起的土壤氮库动态变化和植物氮吸收差异,很大程度上限制了对森林氮养分利用策略和生态系统氮循环的认知水平。 

优发国际  JIYUCI,ZHONGKEYUANCHENGDOUSHENGWUYANJIUSUOSENLINSHENGTAIGUOCHENGYUDIAOKONGXIANGMUZUYINHUAJUNYANJIUTUANDUIYIQINGZANGGAOYUANDONGYUANWAISHENGJUNGENZHENJUNGAODUGONGSHENGDEYAGAOSHANZHENYELINWEIYANJIUDUIXIANG,CAIYONGYUANWEIWENDINGTONGWEISU15NBIAOJIJISHU,TONGGUOSHUXUEMOXINGPINGGULESHENGZHANGJIJIEHEFEISHENGZHANGJIJIEYAGAOSHANZHENYELINDUITURANGBUTONGXINGTAIDANSU(NH4+、NO3-HEANJISUAN)DEXISHOUPIANHAO,BINGDINGLIANGFENXILEBUTONGDANSUDUIZHIWUDANYANGFENXISHOUDEXIANGDUIGONGXIAN。JIEGUOBIAOMING: 1)JINGUANTURANGWUJIDANSHIGAIQUSENLINDEZHUYAODANYUAN(TURANGNH4+DUIZHIWUZONGDANXISHOULIANGDEGONGXIANLVCHAOGUO50%),DANTURANGYOUJITAIDAN(ANJISUAN)ZAIYAGAOSHANSENLINDANSUGONGYINGZHONGYEFAHUILEZHONGYAOZUOYONG,SHIYAGAOSHANSENLINNYANGFENXISHOUZHONGDEYIZHONGZHONGYAOBUCHONGDANYUAN,YOUQIZAITURANGDANSUKUANGHUASHOUXIANGENGYANZHONGDEFEISHENGZHANGJI(FEISHENGZHANGJIANJISUANDUIZHIWUZONGDANXISHOUDEGONGXIANLVGAODA33.47%,XIANZHUGAOYUSHENGZHANGJIDE9.86%);2)ZHIWUDUIBUTONGXINGTAIDANSUDEXISHOUPIANHAOCHENGXIANCHUXIANZHUDEJIJIEDONGTAIBIANHUA(SHENGZHANGJIZHUANXIANGFEISHENGZHANGJISHI,ZHIWUDUITURANGANJISUANDEXISHOUPIANHAOXIANZHUZENGDA),BIAOMINGZHIWUDANSUXISHOUPIANHAODIAOZHENGKENENGSHIGAIQUSENLINYINGDUIJIJIEBIANHUADEYIZHONGSHIYINGXINGCELVE;3)TONGGUOJIEGOUFANGCHENGMOXINGFENXIBIAOMING,SUIJIJIEBODONGDETURANGWENDUYOUDAOLETURANGBUTONGXINGTAIDANKUDEDONGTAIBIANHUA,ZHEIZHIJIEQUDONGLEZHIWUDUIBUTONGXINGTAIDANSUDEXISHOUPIANHAOFASHENGLEMINGXIANDEJIJIEXINGBIANHUA。BENYANJIUJIEGUOWEISENLINYANGFENXISHOUJUYOUMINGXIANDEJIJIEXINGCHAYIZHEIYIGUANDIANTIGONGLEZHIJIEDESHIYANZHENGJU,BINGFENGFUHETISHENGLEDUIDUOBIANHUANJINGTIAOJIANXIASENLINYANGFENHUOQUCELVEYUSHIYINGJIZHIDERENZHISHUIPING。 

  SHANGSHUYANJIUJIEGUOJINQIYI“Seasonal variations in plant nitrogen acquisition in an ectomycorrhizal alpine forest on the eastern Tibetan Plateau, China”WEITIFABIAOZAIGUOJITURANGXUEQIKAN《Plant and Soil》 (2020)SHANG。GAILUNWENDIYIZUOZHEWEICHENGDOUSHENGWUYANJIUSUOGUOWANJIBOSHIHEMEIGUOKELAIMUSENDAXUEZHANGZILIANGBOSHI,TONGXUNZUOZHEWEIYINHUAJUNYANJIUYUAN。 

  LINGWAI,YANJIUTUANDUIQIANQISUOKAIZHANDEYIXIANGGUANYUGAOHANSENLINGENXI/JUNSITUJINGDIAOKONGZHIWUDANXISHOUDEYANJIUYESHOUDAOLEGUOJITONGXINGDEGUANGFANGUANZHU。2020NIAN6YUE,YINGGUOJITURANGXUEQUANWEIQIKAN《Soil Biology & Biochemistry》ZHUBIANKarl RitzJIAOSHOUYAOQING,SENLINSHENGTAIGUOCHENGYUDIAOKONGXIANGMUZUZHANGZILIANGBOSHIHEYINHUAJUNYANJIUYUANZHENDUIGAIYANJIUZHONGSUOTICHUDE“GENXITUJING”HE“JUNSITUJING”GAINIANKUANGJIA、SHENGTAIXUENEIHAN(TU2)、YIJIBENYANJIUJISHU/FANGFADEYOUXIAOXINGHESHIYONGXINGJINXINGLESHENRUDETAOLUN。XIANGGUANNEIRONGJINQIYI“Letter to the Editor”DEXINGSHIFABIAOZAI《Soil Biology & Biochemistry》 (2020)SHANG,BINGDEDAOLEKarl RitzJIAOSHOUGAODUPINGJIA。 

优发国际  SHANGSHUYANJIUDEDAOLEDIERCIQINGZANGGAOYUANKEXUEKAOCHAYANJIU、ZHONGKEYUANQIANYANKEXUEZHONGDIANXIANGMUHEGUOJIAZIRANKEXUEJIJINDENGXIANGMUDELIANHEZIZHU。     

  

  

   

  TU1 YAGAOSHANZHENYELINZHIWUDANSUHUOQUDEJIJIEXINGBIANHUAGAINIANMOXING 

   

优发国际  TU2SENLINGENJIHEJUNSIJIJIQIJIEDAODETURANGC-YANGFENGUOCHENGGAINIANKUANGJIASHIYITU 

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