干旱区生态环境知识资源中心(Arid): 三峡库区消落带土壤无机磷组分的变化及其对有效磷的影响

Arid

	三峡库区消落带土壤无机磷组分的变化及其对有效磷的影响
其他题名	Inorganic Phosphorus Transformation and Effected the Phosphorus Availability in Drawdown Areas of Three Gorges Reservoir
	马志敏 1; 傅瓦利 1; 胡宁 1; 王改改 2; 孙璐 1
ISSN	1009-2242
出版年	2009
卷号	23 期号:3 页码:107-111
中文摘要	通过室内土柱模拟实验,采用顾益初、蒋柏藩的无机磷分级方法,研究了三峡库区消落带早地和水田不同无机磷形态在表层和剖面的分布及其对有效磷的影响.结果表明.消落带旱地和水田不同处理无机磷形态均是以Ca_(10)-P为主.整体上来看,各土层中不同无机磷形态的含量是Ca_(10)-P>O-P,Fe-P>Cas-P,Al-P,Ca_2-P.土柱模拟实验后,旱地和水田Ca_2-P,Ca_8-P,Al-P和Fe-P的含量都是相同水分情况下添加有机质的处理大于未添加有机质的,水分不同有机质相同时为淹水处理的含量大于湿润处理,但有机质相同时,淹水处理更利于Ca_(10)-P和O-P向易溶性磷转化,添加有机质也会增加其含量;土壤剖面变化表现在:Ca_2-P,Ca_8-P和Al-P 3种形态存在底部累积现象.而Fe-P,Ca_(10)-P和O-P的含量随着土壤深度的增加逐渐降低;Caz-P,Ca_8-P是旱地和水田有效磷的主要磷源,与水分显著相关的Fe-P在淹水后含量增加,也成为重要的磷源.
英文摘要	The indoor experiment was conduted to study the effects of phosphorus fertilization and A layer and the section plane on the the distribution of inorganic phosphorus of the arid land and the paddy field in the Three Gorges Reservoir Regions. The result indicated that: the dominant was Ca_(10)- P in different inorganic phosphorus in the Three Gorges Reservoir Regions. In the whole, the contents of inorganic P fractions showed same tendency in all three layers:Ca_(10) -P>O-P, Fe-P>Ca_8-P, Al - P, Ca_2-P. After the experiment, the contents of Ca_2-P, Ca_8-P, Al -P and the Fe-P of the increaseed organic teatments of the arid land and paddy field were bigger than the content of not increased in the same moisture, the content of the submerged and added organic matters (or didn’t add organic matters ) treatments were bigger than the wet and added organic matters (or didn’t add organic matters ) treatments in the different moisture . However, the flooded treatments were the favor of Ca_(10)-P and O-P to transform to the easy soluble phosphorus when the organic matters were the same, and increased the content; The change of soil profile displayed in-Ca_2-P, Ca_8-P and Al-P had phenomenon of the base accumulation, but Fe-P, Ca_10-P and O-P were reduced gradually from A layer to C layer; Ca_2 -P, Ca_8 - P were the major part of effective phosphorus in the arid land and the paddy field, Fe-P is related to the moisture is the rich latent phosphorus source.
中文关键词	无机磷形态 ; 有效磷 ; 消落带
英文关键词	inorganic phosphorus phosphorus availability drawdown areas
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3640151
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224183
作者单位	1.西南大学地理科学学院, 重庆 400715, 中国; 2.西南大学资源环境科学学院, 重庆 400715, 中国
推荐引用方式 GB/T 7714	马志敏,傅瓦利,胡宁,等. 三峡库区消落带土壤无机磷组分的变化及其对有效磷的影响[J],2009,23(3):107-111.
APA	马志敏,傅瓦利,胡宁,王改改,&孙璐.(2009).三峡库区消落带土壤无机磷组分的变化及其对有效磷的影响.,23(3),107-111.
MLA	马志敏,et al."三峡库区消落带土壤无机磷组分的变化及其对有效磷的影响".23.3(2009):107-111.