1、高寒矮嵩草草甸覆被动态变化对土壤气候的影响分析19q?7?;2005?12?o?qG?U?f?JournalofAridLandResourcesandEnvironmentVol.19No.7Dec.2005?y?cq?;1003-7578(2005)07-125-05?h?h?b?1q?qc?;?eYm?5?3m?a?a?c?q?a?aq?Ke,?qE?q?;?e?g?810001)?:?,?1q?qc?q?a?;?/K1?K9?f:?u?l?qG?a?C4?on?K8?on?;?n,?a?;?/?f?l?qG?z?i?iq?/?q?Yk?d?K9.22760C/?K9?l?6?;?*?a
2、0-60cm?T?;?1.2587%u/?;?L?K9?l?6?5?%?I?2?aq?;?l?E?6?;?W5K9?:?h?h?b;?1q?qc;?;?eYm;?;?/?;r?,?5?q?:S154.4?J?1:A?;?eYmf?6?e?eYm?aq?u?5?7?K9?Z?;?eYm?C?;?,?a?a?l?p?;?a?l?*q?5?a?q?;?;?;?O?u?6?K9?l?;?q?l?n?rq?;?eYm?a?a?q?;?eYm?Kq?*?Cq?11?a?;?eYm?pq?l?f?K?6?e?eYmK1?;?6?1?h?u?G?J?a?aef?K?l?K1?l?K1?;?;?K1l?a?K?
3、*?h?u?g?6?6K9?a?;?eYm?3O?q0?;?/?;?K9?e?f?a?6?G?;?K?f?;?K/?C?z?qG?eYmq?qc?3H?a?a?W5?*3?q?qcm?k?)G?Ke?a?3vKsK9?l?C?;?n,?a?z?C?W?n?h?o*?CK9?C?l?;?n,?l?a?;?a?l?5*?1l?a?W?a?f?;?eYm?q?qc?J?a?l?;?f?l?q?;?;?q?n?K9?a?l?n?r?Z?z?K?T?;?eYm?g*?C?3H?K9?G?a?q?qcf?;?WK1?q?qc?z?.?K9G?a?C,?qE?h?b?;?1?*?(?qE?)?a?t?h?l
4、?;?n,?;?/K1?H?a?l?K1?;?K1q?h?a5?h?h?b?1q?qc?;?eYm?K91?e?qG?K1?e?Y?q?1.1?e?qG?P?qE?K?2?q?.qE?qE?t6l?qG?a?M?qE?z?.?q?K?6?t?“?a?K?5*?G37029-37045N,101012-101023E,?qG?K?e?a?C3200?3600m.?KqG*?X?6?+?K?a?f?k?q?6?+?6?eYm?a.q?q?q?ZK9?P?a?e?/?*?a?f?k?H5?a?u?HS?a?5?f;?KqG?e?/-1.7C,?7?o?e?/9.83vC,?1?o?e?/-14.8C
5、;?W?580mm?q?a?WO?,?5-9?o?aq?W?800a?a?10?o?4?o?G?W?2000K9?.?;?a?.?;?G20?/?q?a?C?7?o?q?.?K1?K1?(?p?)?h?g?u?/?e?K9?K1?K1?S?K1?yK1?K1?K9?P?F?;?*?0?zoos?10-15,?V?n?6?(KZCXI-SW-01-01A);?g?e?q?L?(2002CB412501),?o*?3.?/?4?hq?;?1?3?1?/?qc?e?3Nq?,?o*?3.?%?KqG?V?v?L(APEIS)“.?Kr1962-)?“?a?Y?a?n?n?oO?;?e?e?*?126
6、?qG?U?f?19q?e?qG?u?C?R?K?h(Kobresiatibetica)?h?b?a?h?c?aO?*v?u?9?0(Stipaaliena)?a?-*v?u?(Gentianastraminea)K1?v?+(Oxytropiskansuensis),?S?0(Festucarubra)?a*W?;?u?h(Saussureanigrescens)K1?(Saussureakokonorensis)K1?h(E?musnutans)?hK9?;?G?h?;(Mat-CryicCambisols)K9?q?*?/?al?a?l?l?;?*?a?l?N?;?*?hK9?;?q?a
7、?;?T?a?u?G?C?S?K?h?q?K91.2?l?;?nq?;?H?%?1q?qc?H?a*+?C?q?qc?n,?H?h?h?b?l?Kr?;?aq?a?K?;?q?qcq?q?qc?nK9?Kr?;?z2004?l?;?;?o?15?30?f3d?H?a?Kr?;?H?C?2?G?u?6%50cmX50cm?“?a?C?Y?K?n?a?P?f?/?P?C65-7?a?f?aq?*?g/mzo2004?%?q?H?a*+?h?b?l?a?k*t?u?a?;?n?P?;?P?a?2?Ym?;?aq?q?qcl?t?f?k?a?q?J?C?C?2001?H?YxK9?C?qE?h?b?K
8、qG?a4?on?5?oN?z?l?a?q?;?a*+?;?l?;?G?R?a?A?a?K?*x?X?aq?J?H?a?q?J?H?z?5?o,?f?K9?0?8?o?SK9?oN?l?Kr?;?6?a?I?a?l?K1?l?%?G?;K9?g?a?,?g?Cq?J?q?5?o10?K8?o30?K91.3?;?/?;?Hq?U?2?5?,?;?/?K1?;?H?U?G2004?a?;?H?YxK9?/?K1?U?H?2?5?u:1)?;?/?:?7?K?e?u?X?K?n?;?/?H?a?q?C?u?l?n?;?/?H?a?5?a?e?X?K?n?;?/?HYx?h?h?bqG?C?H?/?
9、(CPt-lo,CLIMATEC)?H?;?/?Yx(?HG?A?-)K9?2?5?Q?2?a?2?Yx?a?u?l?n?;?/?q?X?K?n?a?;?/?a?4?on?K8?on?;?/?Yx?q?qc?E:?Ti(AT;=PT;-UT;,iG?E?aPTK1Gi?n?u?l?qG?;?/?aUT?aG?ai?En?X?K?n?;?/?)K9?7?K?;?/?H?T?-?t?a?C?;?locm?/?K92)?;?:?C?o5,10,15,20,25,30?H?;?a?*?-?u2?*?2?5?a?H?4?o25?K10?o25?a*+?,?g?CK?G4?on?K8?on?K93)?,?
10、;?W5?;?/?n,?gq?;?Yk?d?q?qc?a?zs;?;?/?(x,i?;?/?c?)G?q?a*?E(t?a?q?at=1,2,-?a?q?4?on?G1?aK8?on?G13?E)H?=?6?aq?x,=a+btr?A?z?C?G?q?f?q?H?K9?b?G?q?(?;?/?c?)q?qc?Yk?d?abG?a?fx?t?Qrq?;bG?;?a?fx?t?Qn?K9b?6?Aq?3?rq?cn?;?K9?r?G?q?f?EtH?6?n?K92?f5?2.1?h?h?b?1?1?2004?5?o10?K8?o30?;?qE?h?h?b?l?y?q?;?1q?qc?a?,?;?H
11、?G?qw?o?-?H?Yx?a?2004?%*?q?H?a?C?2001?H?K9?1?nK?a?C?qE?h?b?KqG?a4?on?l?O?a?H?p?h*?C?a?K?*x?X?a?;?q?i?i?aK8?o,n?6K96?or?K7?on?z?;?z?aq?J?6?G?;?;K9?r?a?4?on?K8?on?a?n?5?A(?t?GK9%)?n?l?;?a?i?i?6?aK8?o?q?K90%?rK9?h?h?b?l?Kr?;?q?C?q?qc?n,?aq?q?qc?nK9?8?o15?C?a?l?qG?7?q?K?(?2)K9?2?nK?a?f?;?u?k?(n=17,r=0.6
12、735,p0.01)?a?f?4?on?K8?on?;?6?z?K9K?6?gq?qc?nK9?Cn?1q?qc?a?;?q?qcq?%?H?l?q?qcK97?;?h?h?h?b?1q?qc?;?eYm?5?1274504Q035030025020015010050?BK1?6?P?.?q?q?Rs?0.4537500050005000500332211?BN?o?P?w?.?q?10/515/530/515/630/615/730/715/830/8q?;(k1/?o)4060?l?%80100?1?h?h?bq?;?1?2?qE?0?h?h?b?l?;?ef?Fig.1Leafareaa
13、ndhiomassdynamicsofKobresiahumilismeadowFig.2BiomassandcoverageofKobresiuhumilismeadowintheNorthernQinghai2.2?C?;?n,?;?/K1?l?f?;?z?*?C?a?K9?l?q?pq?a?a?pq?q?*?*?l?q?;q?qcK9?l?;?/K1?z?f?k?aq?l?T?a?l?6?5?%?I?2?a?a?d?d?6?e?G?7,K9?a?a?l?C?*?;?W5?Z?aq?l?;?q?h?o*?C?aq?;?l?E?6?;?W5?K9?a?l?5?7K1?h?K?T?;?/K1?
14、u?g?f?k?K9?K?/?K1?q?qc?u?*?q?A?q?qc?n?a?q?qc?K?G?f?kK9?a?C?T?;?a?r?an*3?a?c?;?2?Q?q?a?n?ar?ZK9?T?K?/f?K?/?K1?q?qc?a?z?Z?K?/?*?aq?qc?f?K?/?q?qc?*x?a*+?r?an?K1?*?(*?)?f?a?K1?q?qc?z?(?)?AK9?P?a?C?u?l?c?l?Cl?a?;?l?a?a?;?/?q?qc?q?l?a?C?u?6?qGSK9?3E?;?1Ocm?T?-?a?4?on?K8?on?;?a?u?l?n?;?/?q?X?K?n?a?;?/?/?Yx
15、q?qc?EK9?3?n?a?n?/?Yx?z?i?iq?.?f?h?h?b5?7qG?a4?on?K8?on?;?a?Kr?;?(?a?g?a?z?l?6)?a?a?;?/?q?u/?a?l?/?q?Yk?d?0.2276C/?K960.0055.003e10-20rm?+50000000?b0?Ud3vd3v35.0030.0025.00*?q?-H?X*?f?Xka2/0.Dk*1b?3?(?1)q?qc?n?;?eYm(?;?/?)?1q?qcFig.3Soilclimate(soiltemperatureandsoilhumidity)dynamicsunderdifferentco
16、veragestatus?/?q?3?6?a?l?Kr?;?l?z?a?l?C?l?q?n?a?l?/?q?%?I?2?fq?u23%?q?q?2K?6?e?a?78%?K?l?g?b?PC81?a?H?KqG?u?G?%?I?2?aq?l?*?a?4?on?*x?X?a?l?a?(?G0)K?i?a?6?C20-30cm?q?a?C?“?n?a?%?I?2?6?t?K?T?g?b?PK9q?c?a?C?q?K?4?K?6?e?T?/?L?6?a?2?G?a?l?d?c?X?KqG?K?/?C?.?*?a?a?u?qG?Z?l?C?a?2?3.?R?3N*?C?a?*?a?3.?R?3N*?C
17、?C?q?*?C?f?k?a?a?q?K?/?u/?a?P?q?f?a?l?6?a?Z:?a?/?a*+?q?*?l?n?q?ae?g?*?/?Q?6?ZK9?l?q?T?;?/?5?uq?q?K9OiIAf?q?K?W5?7?c?a?KqG?;?an?hK9?C?;128?qG?U?f?19q?a?W?;?W5?f?k?dK9*+?C?;?r?an?;q?;?aN?q?l?n?a?T?W5(?W)?5?;?G?*q?a?Z?;?T?d*?/?;?T?a?l?d?;?T?a*?T?W5?a?G?uK?W9K9?q?:?W?;?r?an?qc?a?;?T?C?qc?n,?u?a?f?P?W?f?k?6?a*+?l?l?;?a?6?a?;?u?C?,?*?a?Z?z?a?;?z?k?f?K9?3?nK?a?;?C?l?d?c?*x?X?P?z?t?a?;?2?6?1?a?4
