河北曲周土壤氮素养分的时空变异特征.PDF

40 3 V l140, N 13 2003 5 ACTA PEDOLOGICA SINICA May, 2003 * ­ 张世熔 黄元仿 李保国 张凤荣 胡克林 ( , 100094) TEMPORAL- SPATIAL VARIABILITY OF SOIL NITROGEN NUTRIENTS IN QUZHOU COUNTY, HEBEI PROVINCE Zhang Sh-i r ng Huang Yuan-fang Li Ba-gu Zhang Feng-r ng Hu Ke-lin ( College of Resource and Environmental Sciences, ChinaA gricultural Univers ity , Beji i ng 100094, China ) , , , S153.6 20 , , , , 20 , , [ 1, 2] , [3, 4] [ 5, 6] , [7] , , , 20 , 1 111 , 114b50c30d ~ 115b13c30d, 36b34c45d ~ 36b57c57d 2 2000 49 7121 0 hm , 71101% , 131 1e , 2 10 d, 55612 mm, 60% 6~ 9 , , 112 2000 1980 , 124 ( 1) , 3 km 76 , 48 , 1B1 GPS , 71 ; 53 , 50 m 21, 50~ 100 m * ( G1999011810) ACIAR (LWR1/ 96/ 164) ­ : 2001- 09- 20; : 2002- 09- 15 4 76 40 18 , 100~ 200 m 10 , 200~ 300 m 4 , 0~ 20 cm 3 11 3 2000 1980 , , [8] 11 4 [ 9] , 2 21 1 20 2 1980 , , 1 20 km, 0141 01 68 20 ,