Characteristics of available P in the rhizosphere soil in pure Juglans mandshurica and Larix gmelinii and their mixed plantation

Abstract

Abstract: The rhizosphere and non rhizosphere soils were sampled in the pure and mixed plantations of Juglans mandshurica and Larix gmelinii by peeling the adhering soil of the roots, and the available Pcontent were analyzed. The results showed that the available Pcontent in the rhizosphere soil in the pure Larix gmelinii was 55.8% higher than that in the non rhizosphere soil, while the available Pcontent in the pure Juglans mandshurica was higher thanthat in the non rhizosphere soil by 10.1%. The roots of Larix gmelinii had important effect on mobilizing Pin the rhizosphere soil. The available Pcontent in rhizosphere soil of Juglans mandshurica in the mixed plantation was higher than that in the pure plantation by 45.2% due to the effects of the roots of Larix gmelinii. The mechanism by which the available Pcontent in the rhizosphere soil of Larix gmelinii was much higher was elucidated by means of Pabsorption, Pdesorption, and inorganic Pgradation.

Key words: Pure plantation, Mixed plantation, Rhizosphere, Available P.

CLC Number:

S714.8

CHEN Yongliang, HAN Shijie, ZHOU Yumei, ZOU Chunjing, ZHANG Junhui . Characteristics of available P in the rhizosphere soil in pure Juglans mandshurica and Larix gmelinii and their mixed plantation[J]. Chinese Journal of Applied Ecology, 2002, (7): 790-794.

References

[1] Agro-chemistry Branch of Chinese Society of Soil Science(中国土壤学会农业化学专业委员会). 1983. Method of Analysis in Soil and Agrochemistry. Beijing: Science Press. (in Chinese)
[2] Bertrand I, Hinsinger P, Jaillard B and Arvieu JC. 1999. Dynamics of phosphorus in the rhizosphere of maize and rape grown on synthetic, phosphated calcite and goethite. Plant Soil, 211: 111～119
[3] Chen Y-L(陈永亮). 1999. The nutrient relationship between Juglans mandshurica and Larix gmelinii in the mixed stand. Ph D. thesis. Haerbin: Northeast Forestry University. (in Chinese)
[4] Cheng G-L(程国玲), Tang L-J(唐立君), Lang F-S(郎福生). 2001. The nitrogen and phosphorus nutrient characteristics and changes in the rhizosphere of the pure and mixed plantations of larch and ash. J Northeast For Univ(东北林业大学学报), 29 (1): 26～29 (in Chinese)
[5] Feng Y-L(冯玉龙),Wang W-Z (王文章). 2000. Study on the phosphorus nutrition relationship between larch and ash. Sci Silvae Sin (林业科学), 36 (2): 20～25(in Chinese)
[6] Gardner WK and Parbery DG. 1982. The acquisition of phosphorus by Lupinus albus L.Ⅰ.Some characteristics of the soil/root interface. Plant Soil, 68:19～32
[7] Hinsinger P and Gilker RJ. 1996. Mobilization of phosphate from phosphate rock and alumina-absorbed phosphate by the roots of ryegrass and clover as related to the rhizosphere pH. European J Soil Sci, 47: 533～544
[8] Jiang B-F(蒋柏藩). 1981. Transformation of phosphorus fertilizers in the soil and its availability to the plants. Adv Soil Sci(土壤学进展), 9 (2): 1～11 (in Chinese)
[9] Jia P(贾平), Hao W(郝伟). 1998. Study on the soil phosphorus in the Larix gmelinii plantations. J Northeast For Univ(东北林业大学学报), 26 (1): 67～69 (in Chinese)
[10] Jiang P-K(姜培坤), Xu Q-F(徐秋芳), Qian X-B(钱新标). 1995. Studies on soil phosphorus in rhizosphere of Chinese fir and Chinese sassafras. J Zhejiang For Coll (浙江林学院学报), 12 (3): 242～246 (in Chinese)
[11] Jones DL and Darrah PR. 1994. Role of root derived organic acids in the mobilization of nutrients from the rhizosphere. Plant Soil, 166: 247～257
[12] Jungk A and Claassen N. 1986. Availability of phosphate and potassium as the result of interactions between root and soil in the rhizosphere. Z Pflanzenernaehr Bodenk, 149: 411～427
[13] Lu R-K(鲁如坤). 1990. Advances in soil phosphorus chemistry. Adv Soil Sci(土壤学进展), 18 (6): 1～5 (in Chinese)
[14] Tu S-X(涂书新), Sun J-H(孙锦荷), Guo Z-F(郭智芬). Hu F(胡锋). 2000. On relationship between root exudates and plant nutrition in rhizosphere. J Soil Environ Sci(土壤与环境), 9 (1): 64～67 (in Chinese)
[15] Wang J-G(王敬国). 1995. Soil Chemistry for Plant Nutrition. Beijing: Beijing Agricultural University Press. 4～46 (in Chinese)
[16] Xing C-W(刑春旺), Ma Y-Q(马玉清). 2000. The dynamics of soil pH and available phosphorus in the mixed plantation of Larlix gmelinii and Manchurian wulnut. Hebei J For Tech(河北林业科技),(5): 1～3 (in Chinese)
[17] Zhang F-S(张福锁), Cao Y-P(曹一平). 1992. Rhizosphere dynamics and plant nutrition. Acta Pedol Sin(土壤学报), 29 (3): 239～250 (in Chinese)
[18] Zhang Y-D(张彦东), Bai S-B(白尚斌),et al. 2000.Utilization of insoluble phosphate by Larix gmelinii seedlings under phosphorus starvationn. Chin J Appl Ecol(应用生态学报), 11 (5): 668～670 (in Chinese)
[19] Zhang Y-D(张彦东), Bai S-B(白尚斌), Wang Z-Q(王政权). 2001. Soil P availability in larch rhizosphere. Chin J Appl Ecol(应用生态学报), 12 (1): 31～34 (in Chinese)