Page 201 - 《水资源与水工程学报》2022年第6期
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! 6#        W‘‘, 9: ’“”v•; ­–—&K˜ã™š›Žœ„qruª./                                              1 7
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                 middlereachesofthebasinbutlowintheupperandlowerreaches.TheaverageWUEofforestlandwas
                 relativelyhighamongthevegetationtypes ,andtheaverageWUEofconiferousforestwasthehighest,
                                                                                                 2
                                         2
                 whichwas1.52g/(mm·m );followedbybroadleavedforest,whichwas1.29g/(mm·m ).The
                 maindrivingfactorsof WUEinthestudyareawereCO,soilmoisture,temperaturevegetationdroughtin
                                                              2
                 dexandvaporpressuredeficit.Comparedwithsinglefactor,theinteractionofmultiplefactorshada
                 greaterimpactonWUEinthestudyarea,allthetwofactorinteractiondetectionshowedasignificanten
                 hancementrelationship ,andeachexplanatorypowerwasmorethan60%,amongwhichtheexplanatory
                 poweroftheinteractionbetweenCO andsoilmoisturewasthehighest(90.3%).Theresearchresults
                                               2
                 canprovideatechnicalsupportforefficientagriculturalproduction,optimalmanagementofwaterre
                 sourcesandecologicalrestorationinthestudyarea.
                 Keywords:vegetationwateruseefficiency(WUE);spatiotemporalpattern;geographicaldetector;
                 Hurstindex;theManasRiverBasin
                                                               u†<Ç¿„…¾õŸ)ª^rj±(Theil-Sen
            1 ./01
                                                               median) ¢£、Mann-kendall(M-K) QX…
                 ¤·NduYÿ WUE(wateruseefficiency)              †ÀP Hurst ˆ±fK‘ WUEŸMy¾
            ܈Gk[\æžøj–NêY•Ÿ CO                     2 [1] 。  Ü。`¥&Jn¼%äÞâÄ.­XŸ¿FÝJ
            WUEÜ\YGk[\ÄN{sP¸§¨Œ0[Ÿ                             ( nN、 ZO)、 e¼”O(soilmoisture,SM)、 ZO
                     [2-3]
            $$±         , àÜŖ¿À¡é¥Gk[\ÆÇ                     ¤·!Mˆ±(temperaturevegetationdrynessindex,
            Ÿ$$ˆ‰ÕK        [4] 。ÁÝ6§¥ WUEŸ&J°Ü                 TVDI)、 Y ’ N å º ¿ (vaporpressure deficit,
            Wषšœ˜O’œŠN², v•K‘$ñ”                            VPD)、CO ’„K餷ˆ± (normalizeddiffer
                                                                        2
            ¿ŠŒ.‘、 Cöv•‘’ΕLjJ‘f                     [4-8] 。   encevegetationindex,NDVI), ¤¢½Y]Óvٕ
            ҙ|_°6§duyz.…¥ WUEaq«c–                            –ÀËݖ¥ WUE ŸÆÇ, ãO&J‹¬;À
            &J   [9] 。ZHANGf  [10] 、 ‘Í?¸üEª·EE¸               M>¯´!"owŽNQRŒ]du(a'ÀP¥
            f [11] ’”u GLASS(globallandsurfacesatellite)      Ã"oGk[\lm’ÄN{sŸ&J¸ëd。
            ±í’ MODIS(moderate-resolutionimagingspectro
                                                              2 234()./56
            radiometer ) ±íC¹:Lno WUEyö£
            X¾c; Œ"¥f       [12] 、 ÐÌÌf  [13] ƒuyz±í&          2.1 |}~—˜
            J'“:L&JnŸ WUEÏMö˜OËñò¹:                                >¯´!"ojàohyBrÆ, VCª×Y
            LŸ¡é¢£; =@óf            [14] «yz±í( CASA           "y(43°04′N~45°58′N,84°40′E~86°40′E), &J
                                                                                    2
                                                                                4
            (Carnegie-Ames-stanfordapproach) —ç‹Œ&J            nï*M 3.40×10 km, YÄíÁ, Y£".yÑ,
            '“¶ÉAè、 nN–、 k8’¿Z¥ WUEŸÆÇ                         4"LyìÔMhY、 tœ’¶Ž。&JnàÝ
            hOìÔâÛ。ÀË&J‹¬­®, :Lno WUE                          çŸZ'!Mc\X¿À, ™³¿ZM 7.7℃, ™³
            ŸMy¾Ü’¡é¢£¿£¾c, ÆÇ WUE ŸÝ–                         nN–M 114~200mm, ™¹'–M 1500~2100
            ’ÆÇhOà:L。簜&JäÞÆÇ WUEŸ                            mm, ¿À!K, ¿Z™¾¿¾c, nޖ®, ¹'–
            ݖ.­X:j, ð®ÆÇݖ¥ WUE Ÿ•–é                         c。&JnÜå%„Ȫ4nnÐcŸtœw¨
            , ¤¤“©«°Ý–ŒSEu¥íÁGk[\¤                            n, NQRduÿ¾.         [1,16] , ($NRM.hß
            · WUEMy¡éŸÆÇ。                                      €N’ËghnnN。&JnN[P$¤·¬ç
                 å%>¯´!"oâÄ!MnÐÝ矓 hY                         ¯C 1。
             - tœ - ¶Ž” íŒGk[\, Ür2S 4c*+                      2.2 Z[\]
                   [15]
            wŽn      , NQRÜÃno¶pGë’Gk;µŸ                           §12dydoܱí[\(https://ladsweb.
            0åIüݖ。ÝW, ãOÀ>¯´!"oM&J                            modaps.eosdis.nasa.gov/) ² ƒ Ë Z å « & J n
            n, 7à 2001-2019™ MODIS ±íŸ¤·Ÿóá                    2001-2019 ™ 19 ÝyöÀÿM 500mŸ¤·Ÿ
            Gë…(netprimaryproductivity,NPP) ’¹ç'(e            ó á G ë … (NPP,MOD17A3)、 ¹ ç ' (ET,
            vapotranspiration ,ET) ë²ÅG"o¤· WUE, ”             MOD16A2) ’¤·¬ç±í(MCD12Q1)。¥à¤
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