Variation in Soil Phosphorus Forms in Larix olgensis Plantations in Eastern Montane Area of Northeast China

Abstract:

Variation in total phosphorus (TP), available phosphorus (AP), the forms of organic phosphorus (OP) and inorganic phosphorus (IP) in rhizosphere soil (RS) and non-rhizosphere soil (NRS) at different development stages in larch (Larix olgensis) plantations was quantitively studied through field investigation, chemical analysis and statistical test. The results indicated that: AP, O-P (occluded phosphate), TP, OP in RS exhibited a significantly or apparently decreased tendency over stand age, but IP, Ca-P (phosphate combined with calcium) and Fe-P (phosphate combined with Ferrum) in RS presented a significantly or apparently increased trend when stand age increased; Ca-P in NRS increased when stand age became larger; Fe-P in half-mature stand (HMS), AP and Fe-P in near mature stand (NMS), AP and Ca-P in mature stand (MS) in NRS was higher than in RS

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 4801-4805
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.4801
• Online since: May 2012
• Authors: Li Xin Chen, Wen Biao Duan
• Keywords: Available Phosphorus, Inorganic Phosphorus (IP), Larix olgensis Plantations, Non-Rhizosphere Soil, Organic Phosphorus (OP), Rhizosphere Soil, Total Phosphorus, Variation

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DOI: 10.1097/00010694-197802000-00006