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1 土壤 (Soils), 2016, 48(2): DOI: /j.cnki.tr 冻融条件下黑土无机磷分级及有效性研究 * ( ) O-P>Fe-P>Al-P>Ca-PAl-P Fe-P O-P Ca-P Al-P O-P Ca-P Al-P Olsen-P(Y) Al-P(X 1 ) Fe-P(X 2 ) S153 S157.4 [1 2] [3] [4] 10% ~ 25% [5] [6 7] [8] 40% [9 10] [11 12] [13] 1 ( E N) ~ 20 cm 5 mm 1 (g/cm 3 ) Table 1 ph 表 1 供试黑土基本理化性质 The physical and chemical properties of the black soil tested (g/kg) (%) ( )( ) * (zhoulilia@163.com) (1990 ) @163.com

2 mg/kg 20% 30% 40% 50% 60% KH 2 PO 4 30 cm 20 cm 10 cm 12 h 12 h 24 h 10 ~ mol/l NaHCO 3 Chang-Jackson [14] = a i a 0 a i mg/kg a 0 mg/kg (TIP) 2 2 (APb) (FTC) O-P( ) (W) F Al-P( ) F Fe-P( ) Ca-P( ) 3 2 (APb)(FTC) (W) O-P (FTC) Al-P O-P Ca-P TIP (W) Fe-P 20 ~ 120 mg/kg 6 (FTC) Fe-P [15] (W) Fe-P 表 2 无机磷总量各形态含量及其绝对含量增值的方差分析 Table 2 Contents of various forms and total inorganic phosphorus and ANOVA statistics of the increase in their absolute contents APb FTC W F P F P F P Al-P < Fe-P < < <0.01 O-P < < Ca-P < < <0.01 TIP < < Al-P < < <0.01 Fe-P < < <0.01 O-P < < Ca-P < <0.01 TIP < APb FTC W F F P P<0.05 P<0.01

3 O-P mg/kg 80 mg/kg mg/kg 3 Al-P 2.18 ~ 9.05 mg/kg 5.60 mg/kg Ca-P 0.66 ~ 7.54 mg/kg 3.79 mg/kg Fe-P 7.88 ~ 6.46 mg/kg 2.15 mg/kg O-P 41.9% ~ 56.0% 50.2% 52.0% 1.8% Fe-P 24.2% ~ 38.8% 30.7% 28.6% 2.2% Al-P 11.5% ~ 15.1% 12.9% Ca-P 4.8% ~ 8.0% 6.2% 6.5% 0.3% O-P Fe-P Al-P Ca-P [16] O-P O-P O-P O-P Fe-P Ca-P Al-P Al-P APb 表 3 冻融前后无机磷各形态绝对含量增值和相对含量 Table 3 Changes of inorganic phosphorus content before and after freezing and thawing W Al-P Fe-P O-P Ca-P Al-P Fe-P O-P Ca-P m % m FTC FTC FTC FTC m % m FTC FTC FTC FTC m % m FTC FTC FTC FTC m % m FTC FTC FTC FTC m % m FTC FTC FTC FTC m FTC FTC APb W m 30 mg/kg FTC 0 FTC % 2.2 Olsne-P 4 Olsne-P Al-P Fe-P

4 表 4 黑土无机磷组分与 Olsen-P 间的相关关系 Table 4 The relationship between inorganic phosphorus fractions and Olsen-P in black soil Al-P Fe-P O-P Ca-P Olsen-P Al-P ** ** ** ** Fe-P ** ** ** O-P ** ** Ca-P ** Olsen-P 1 ** P<0.01 Olsne-P Ca-P O-P Al-P>Fe-P>Ca-P>O-P O-P Fe 2 O 3 Al-P Fe-P Ca-P O-P 2.3 [17] Olsen-P ( 5) Al-P(Py 1 =0.275)>Fe-P(Py 2 =0.245)>Ca-P(Py 4 =0.179)>O-P (Py 3 =0.088) Al-P Fe-P Ca-P O-P 5 O-P Al-P (Py, 31 =0.154) Ca-P (Py 4 =0.179) Al-P (Py, 41 =0.133) Al-P Ca-P O-P Fe-P Al-P Al-P Al-P X i X j Table 5 表 5 黑土无机磷各组分对 Olsen-P 的通径系数和通径链系数 The path coefficients and path chain coefficients of inorganic phosphorus fractions and Olsen-P in black soil X i Y X 1 Y X 2 Y X 3 Y X 4 Y γ iy X X X X X 1 Al-P X 2 Fe-P X 3 O-P X 4 Ca-P Y Olsen-P 2.4 Y=0.201X X X X (r=0.552) X 1 X 2 X 3 X 4 Y X 3 X 3 Y=0.235X X X (r=0.547) X 1 X 2 X 4 Y Ca-P X 4 Y=0.284X X (r=0.532) Al-P Fe-P Olsen-P Olsen-P Al-P Fe-P 6

5 2 263 表 6 不同冻融循环次数条件下 Olsen-P 与 Al-P Fe-P 之间的回归分析 Table 6 The regression analysis between Olsen-P and Al-P,Fe-P under different freeze-thaw cycles FTC 0 Y=0.223 X X R 2 =0.794 FTC 1 Y=0.402 X X R 2 =0.761 FTC 2 Y=0.296 X X R 2 =0.867 FTC 3 Y=0.278 X X R 2 =0.351 FTC 5 Y=0.296 X X R 2 =0.633 FTC 10 Y=0.245 X X R 2 =0.298 FTC 15 Y=0.407 X X R 2 =0.592 FTC 20 Y=0.521 X X R 2 =0.844 FTC 30 Y=0.277 X X R 2 =0.988 FTC 6 Al-P(X 1 ) Fe-P(X 2 ) Al-P a = 0.021X R 2 =0.923 Fe-P b = 0.028X R 2 =0.835 c = 0.104X X R 2 =0.775 Y = (0.021X )X 1 (0.028X )X 2 (0.104X X ) Y X X 1 Al-P X 2 Fe-P a Al-P b Fe-P c 3 O-P Al-P Ca-P Fe-P O-P>Fe-P> Al-P>Ca-P (FTC) Al-P O-P Ca-P TIP (W) Fe-P Al-P(Py 1 =0.275)>Fe-P(Py 2 =0.245)> Ca-P(Py 4 =0.179)>O-P(Py 3 =0.088) Al-P Fe-P Olsen-P Al-P(X 1 ) Fe-P(X 2 ) Y = ax 1 + bx 2 c Al-P(X 1 ) Fe-P(X 2 ) 致谢 : 感谢贾玉华老师对论文初稿提出的修改建议 [1],,. [J]., 2006, 37(3): [2],,. [J]., 2007, 18(10): [3],. [J]., 2003, 1(4): [4],,,. [J]., 2013, 29(17): [5] McLaren T I, Simpson R J, McLaughlin M J, et al. An assessment of various measures of soil phosphorus and the net accumulation of phosphorus in fertilized soils under pasture[j]. Journal of Plant Nutrition and Soil Science, 2015, 178(3): 1 12 [6],. [J]., 1991, 22(6): [7],. [J].,1989, 22(3): [8],,,. [J]., 2009, 23(6): [9],, 戼. [J]., 2003, 40(4): [10] Gburek W J, Sharpley A N, Heathwaite L, et al. Phosphorus management at the watershed scale: A modification of the phosphorus index[j]. Journal of Environmental Quality, 2000, 29: [11],,,. [J]., 2009, 46(1): [12],,,. [J]., 2002, 13(3): [13],. [J]., 2011, 9(6): [14] Chang S C, Jackson M L. Fractionantion of soil phosphours[j]. Soil Science,1957, 84: [15],,,. [J]., 2009, 23(3): [16],,,. [J]., 2014, 46(4): [17]. [J]., 1991, 28(4):

6 Classification and Efficiency of Inorganic Phosphorus in Black Soil Under Freezing and Thawing Conditions QIAO Siyu, ZHOU Lili *, FAN Haoming, JIA Yanfeng, WU Min (College of Water Conservancy, Shenyang Agricultural University, Shenyang , China) Abstract: The freezing and thawing action is an important factor affecting the form and transformation of soil inorganic phosphorus, which is an essential element of ecosystem. In order to examine the changes of inorganic phosphorus fractions and their efficiency under freezing and thawing conditions, a black soil was selected, and the inorganic phosphorus fractions and their efficiency were measured with the method of Chang-Jackson under indoor simulation conditions. The results showed that the absolute contents of inorganic phosphorus fractions increased generally after freezing-thawing, while the relative content of inorganic phosphorus did not change significantly. The contents of inorganic phosphorus fractions followed the order: O-P> Fe-P>Al-P>Ca-P. Correlation analysis and path analysis indicated that Al-P and Fe-P were the available phosphorus source and affected the content of soil available phosphorus directly; while O-P, Ca-P and Al-P had larger coefficient of size chain, indicating that O-P and Ca-P indirectly affect the available phosphorus content through their interactions with Al-P. A good linear relationship was observed between Olsen-P(Y) and Al-P (X 1 ) and Fe-P (X 2 ). Key words: Freezing-thawing cycles; Black soil; Inorganic phosphorus; Fractions; Efficiency

5月15期

5月15期中国农学通报 2012,28(15):106-111 Chinese Agricultural Science Bulletin 旱地小麦休闲期不同耕作措施对土壤水分蓄纳利用与产量形成的影响贺立恒, 高志强, 孙敏, 李青 ( 山西农业大学农学院, 山西太谷 030801) 摘要 : 为了提