土地利用方式对陇中黄土高原土壤磷组分的影响

摘要/Abstract

摘要： 对陇中黄土高原地区至少已有50年传统耕作历史的农田(耕作和休闲)和退耕24年的草地(围封和放牧)土壤磷组分进行了比较研究。结果表明,1)农田土壤中活性无机磷(H₂O-Pi、NaHCO₃-Pi)、潜在活性无机磷(NaOH-Pi)和0～10 cm土层中稳性无机磷(DHCl-Pi)以及30～60 cm土层高稳性无机磷(HHCl-Pi)的含量显著高于草地;潜在活性有机磷(NaOH-Po)含量0～10 cm土层围封草地显著高于农田,20～60 cm土层农田显著高于草地。2)土壤各磷组分之间的迁移转化主要发生在中稳性无机磷DHCl-Pi与其他磷组分之间,且农田中磷组分之间的转化主要发生在0～20 cm土层。3)土壤速效磷、全磷与H₂O-Pi、NaHCO₃-Pi、NaOH-Pi之间及土壤全氮、有机碳与NaOH-Pi、NaOH-Po、HHCl-Pi之间呈极显著正相关关系,而土壤pH与NaHCO₃-Po呈显著负相关,与H₂O-Pi、NaHCO₃-Pi、NaOH-Pi、NaOH-Po、HHCl-Pi极显著负相关。

Abstract: We investigated the soil phosphorus fractions in croplands (planted and fallow, which had a history of traditional cultivation for at least 50 years)and grasslands (fenced and grazed, which had been restored from cultivation for 24 years) on the Loess Plateau. 1) Different land use patterns changed soil phosphorus fractions. The contents of active inorganic phosphorus(H₂O-Pi, NaHCO₃-Pi), potential active inorganic phosphorus(NaOH-Pi), and stable inorganic phosphorus (DHCl-Pi )in the 0-10 cm soil layer and highly stable inorganic phosphorus (HHCl-Pi)in the 30-60 cm soil layer in the croplands were significantly higher than those in the grasslands due to long-term fertilization of the croplands; 2) The conversions between soil phosphorus fractions mainly occured between moderately stable inorganic phosphorus (DHCl-Pi)and other phosphorus components, and also mainly in the 0-20 cm soil layer in the croplands; 3) Available phosphorus and total phosphorus were significantly correlated with H₂O-Pi, NaHCO₃-Pi, and NaOH-Pi. There were significant correlations between total soil nitrogen, soil organic carbon and NaOH-Pi, NaOH-Po, and HHCl-Pi (P<0.01). Soil pH was significantly and negatively correlated with NaHCO₃-Po (P<0.05), H₂O-Pi, NaHCO₃-Pi, NaOH-Pi, NaOH-Po, and HHCl-Pi (P<0.01).

中图分类号:

滕泽琴,李旭东,韩会阁,张春平,傅华. 土地利用方式对陇中黄土高原土壤磷组分的影响[J]. 草业学报, 2013, 22(2): 30-37.

TENG Ze-qin, LI Xu-dong, HAN Hui-ge, ZHANG Chun-ping, FU Hua. Effects of land use patterns on soil phosphorus fractions in the Longzhong part of the Loess Plateau[J]. Acta Prataculturae Sinica, 2013, 22(2): 30-37.

参考文献

[1] 鲁如坤. 土壤-植物营养学原理和施肥[M]. 北京: 化学工业出版社, 1998.
[2] 林德喜, 范晓晖, 胡锋. 长期施肥后简育湿润均腐土中磷素形态特征的研究[J]. 土壤学报, 2006, 43(4): 605-610.
[3] Chen C R, Condron L M, Davis M R, et al. Seasonal changes in soil phosphorus and associate microbial properties under adjacent grassland and forest in New Zealand[J]. Forest Ecology and Management, 2003, 177(1): 539-557.
[4] Tiessen H, Stewart J W B, Bettany J R. Cultivation effects on the amounts and concentration of carbon, nitrogen, and phosphorus in grassland soils[J]. Agronomy Journal, 1982, 74(5): 831-835.
[5] 张教林, 陈爱国, 热带胶园土壤磷素形态和生物有效性[J]. 土壤与环境, 1999, 8(4): 284-286.
[6] 张教林, 陈爱国, 刘志秋. 定植3, 13, 34年热带胶园的土壤磷素形态变化和有效性研究[J]. 土壤, 2000, 6: 319-322.
[7] Cross A F, Schlesinger W H. A literature review and evaluation of the Hedley fractionation: Applications to the biogeochemical cycle of soil phosphorus in natural ecosystems[J]. Geoderma, 1995, 64: 197-214.
[8] 张奇春, 王光火, 冯玉科. 水稻肥料定位试验中土壤各形态磷的变化动态研究[J]. 浙江大学学报: 农业与生命科学版, 2007, 33(1): 82-88.
[9] 秦胜金, 刘景双, 王国平, 等. 三江平原湿地土壤磷形态转化动态[J]. 生态学报, 2007, 27(9): 3844-3851.
[10] 刘德辉, 胡锋, 胡佩, 等. 蚯蚓活动对红壤磷素主要形态及有效磷含量的影响[J]. 应用生态学报, 2005, 16(10): 1898-1902.
[11] Guo F, Yost R S, Hue N V, et al. Changes in phosphorus fractions in soils under intensive plant growth[J]. Soil Science Society of America Journal, 2000, 64: 1681-1689.
[12] Selles F, Kochhann R A, Denard in J E, et al. Distribution of phosphorus fraction in a Brazilian Oxisol under different tillage systems[J]. Soil and Tillage Research, 1997, 44(1): 23-34.
[13] Kuo S, Huang B, Bembenek R. Effects of long-term phosphorus fertilization and winter cover cropping on soil phosphorus transformations in less weathered soil[J]. Biology and Fertility of Soils, 2005, 41(2): 116-123.
[14] 巩杰, 陈利顶, 傅伯杰, 等. 黄土丘陵区小流域土地利用和植被恢复对土壤质量的影响[J]. 应用生态学报, 2004, 15(12): 2292-2296.
[15] 杨文治, 邵明安. 黄土高原土壤水分研究[M]. 北京: 科学出版社, 2000: 4-11.
[16] 张素霞. 黄土高原坡地不同土地利用方式下土壤剖面磷素分布及其有效性研究[D]. 杨凌: 西北农林科技大学, 2008.
[17] 苏少华. 黄土高原丘陵区土壤磷素及其组成对植被恢复过程的响应[D]. 杨凌: 西北农林科技大学, 2008.
[18] 海龙, 王平, 张仁陟, 等. 不同耕作方式对土壤有机磷形态的影响[J]. 甘肃农业大学学报, 2006, 41(5): 95-99.
[19] 王鑫. 不同土地利用方式下土壤无机磷形态与酶活性空间变异特征[J]. 水土保持通报, 2007, 27(5): 112-117.
[20] 傅伯仁. 甘肃黄土高原生态环境建设的问题与政策建议[J]. 中国农业资源与区划, 2006, 27(6): 30-34.
[21] Li X D, Fu H, Li X D, et al. Effects of land-use regimes on carbon sequestration in the Loess Plateau, northern China[J]. New Zealand Journal of Agricultural Research, 2008, 51(1): 45-52.
[22] Sui Y S, Thompson M L, Shang C. Fractionation of phosphorus in a mollisolamended with biosolids[J]. Soil Science Society of America Journal, 1999, (63): 1174-1180.
[23] Ann F. Phosphorus distribution, forms and dynamics of riparian zone peat wetland in Kristianstad district, Southern Sweden[D]. Sweden: Swedish University of Agricultural Sciences, 2004.
[24] 来璐, 郝明德, 彭令发. 黄土旱塬长期施肥条件下土壤磷素变化及管理[J]. 水土保持研究, 2003, 10(1): 69-70.
[25] 周宝库, 张喜林. 长期施肥对黑土磷素积累、形态转化及其有效性影响的研究[J]. 植物营养与肥料学报, 2005, 11(2): 143-147.
[26] Giuffre L, Piccolo G, Rosell R, et al. Anthropogenic effect on soil organic phosphorus fractions in tropical ecosystems[J]. Communications in Soil Science and Plant Analysis, 2001, 32: 1621-1628.
[27] 穆晓慧, 李世清, 党蕊娟. 黄土高原石灰性土壤不同形态磷组分分布特征[J]. 中国生态农业学报, 2008, 16(6): 1341-1347.
[28] 陆景陵. 植物营养学(上册)[M]. 北京: 中国农业大学出版社, 2003.
[29] Tadano T, Sakai H. Seeretion of acid Phosphatase by the roots of several crop species under Phosphorus-deficient conditions[J]. Soil Science and Plant Nutrition, 1991, 37(1): 129-140.
[30] 来璐, 郝明德, 彭令发, 等. 黄土高原旱地长期施肥条件下土壤有机磷的变化[J]. 土壤, 2003, 35(5): 413-418.
[31] 赵琼, 曾德慧. 陆地生态系统磷素循环及其影响因素[J]. 植物生态学报, 2005, 29(1): 153-163.
[32] Lajtha K. Nutrient reabsorption efficiency and the response to phosphorus fertilization in the desert shrub Larrea tridentata(DC.)Cov[J]. Biogeochemistry, 1987, 4(3): 265-276.
[33] 李晓东, 魏龙, 张永超, 等. 土地利用方式对陇中黄土高原土壤理化性状的影响[J]. 草业学报, 2009, 18(4): 103-110.
[34] 董晓玉, 傅华, 李旭东, 等. 放牧与围封对黄土高原典型草原植物生物量及其碳氮磷贮量的影响[J]. 草业学报, 2010, 19(2): 175-182.
[35] 沈善敏. 中国土壤肥力[M]. 北京: 中国农业出版社, 1997.
[36] Dalal R C. Soil Organic Phosphorus[J]. Advances in Agronomy, 1977, 29: 83-117.
[37] 刘树堂, 韩晓日, 迟睿, 等. 长期定位施肥对无石灰性潮土磷素状况的影响[J]. 水土保持学报, 2005, 19(5): 43-46.
[38] 慕韩锋. 黄土旱塬长期定位施肥对土壤磷素分级、空间分布及有效性的影响[D]. 西安: 西北大学, 2008.
[39] 蒋柏藩. 石灰性土壤无机磷有效性的研究[J]. 土壤, 1992, 24(2): 61-64.
[40] 吕家珑, 张一平, 陶国树, 等. 23年肥料定位试验0~100 cm土壤剖面中各形态磷之间的关系研究[J]. 水土保持学报, 2003, 17(3): 48-50.