蚯蚓活动对红壤磷素主要形态及有效磷含量的影响

应用生态学报 ›› 2005, Vol. 16 ›› Issue (10): 1898-1902.

蚯蚓活动对红壤磷素主要形态及有效磷含量的影响

刘德辉¹, 胡锋¹, 胡佩², 成杰民³

1. 南京农业大学资源与环境科学学院, 南京 210095;
2. 四川师范大学化学与生命科学学院, 成都 610066;
3. 山东师范大学人口、资源与环境学院, 济南 250014

收稿日期:2004-12-26 修回日期:2005-04-11 出版日期:2005-10-15 发布日期:2005-10-15
通讯作者: 刘德辉,男,1946年生,教授.主要从事土壤生态、土壤肥力研究,发表论文30余篇.E-mail:liudehui@njau.edu.cn;Tel:025-84395838
基金资助:
国家重点基础研究发展规划项目(G1999011801)和国家自然科学基金资助项目(49871046和40271068).

Effects of earthworm activity on phosphorus fraction and available phosphorus content in red soil

LIU Dehui¹, HU Feng¹, HU Pei², CHENG Jiemin ³

1. College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China;
2. College of Chemical and Life Science, Sichuan Normal University, Chengdu 610066, China;
3. College of Population, Resources and Environment, Shandong Normal University, Jinan 250014, China

Received:2004-12-26 Revised:2005-04-11 Online:2005-10-15 Published:2005-10-15

摘要/Abstract

摘要： 通过盆钵生物试验和采用Hedley磷素分级方法研究了秉氏环毛蚓(Pheretima pingi)对红壤磷素主要形态和红壤有效磷含量的影晌.结果表明,在蚯蚓和有机物料(稻草、花生秸、油菜秸)的共同作用下,经过100d培养后土壤有效磷含量显著提高.统计分析结果表明,花生秸接种蚯蚓处理与不接种蚯蚓处理和油莱秸接种蚯蚓处理与不接种蚯蚓处理之间的土壤有效磷含量差异均达显著水平.采用Hedley磷素分级法测得的树脂磷由原土的痕量增加到10.5～17.8 mg·kg^-1,NaHCO₃溶解态磷由原土的14.5 mg·kg^-1增加到23.5～53.6 mg·kg^-1,微生物细胞磷由原土的1.0 mg·kg^-1增加到6.8～9.7 mg·kg^-1,土壤有机磷含量由原土的37.9 mg·kg^-1增加到50.7～59.3 mg·kg^-1,而土壤中活性最低的残留磷含量则有所降低.蚯蚓活动对红壤磷素具有较强的活化作用.

关键词: 蚯蚓活动, 红壤, 磷素形态, 磷素有效性

Abstract: By the methods of incubation test and Hedley's phosphorus fractionation,this paper studied the effects of inoculating earthworm(Pheretima pingi) on the phosphorus fractions and available phosphorus contents in red soil.The results showed that during a 100-day incubation,earthworm inoculation combined with organic materials(rice straw RS,peanut residue PR,and rape residue RR) amendment increased significantly the content of soil available phosphorus.Statistics analysis showed that there was a significant difference in soil available phosphorus content between treatments PR or RR with and without earthworm inoculation.Compared with the contents of anion-exchange resin P(trace),NaCO₃-soluble P(14.5 mg·kg^-1) and microbial P(1.0 mg·kg^-1) in CK,those in treatments of earthworm inoculation plus organic materials amendment increased to 10.5～17.8 mg·kg^-1,23.5～35.6 mg·kg^-1,and 6.8～9.7 mg·kg^-1,respectively,organic phosphorus content enhanced from³7.9 mg·kg^-1 to 50.7～59.3 mg·kg^-1,whereas residual P was reduced.Earthworm performed an activated effect on the availability of phosphorus in red soil.

Key words: Earthworm activity, Red soil, Phosphorus fraction, Phosphorus availability

中图分类号:

S143.2
S14.5

刘德辉, 胡锋, 胡佩, 成杰民. 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.

LIU Dehui, HU Feng, HU Pei, CHENG Jiemin . Effects of earthworm activity on phosphorus fraction and available phosphorus content in red soil[J]. Chinese Journal of Applied Ecology, 2005, 16(10): 1898-1902.

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