Rule of organic phosphorous and microbial on phosphorous supply for vegetation in forest soil

森林土壤有机磷和微生物对植被供磷的规律

• 批准号: 17580125
• 负责人: TODA Hiroto
• 金额: $ 2.42万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17580125/
• 关键词: Available P; Mineralizable organic P; Microbial biomass P; Tropical soil; Karst soil; Hedley method; P supply; Stricken area of volcanic eruption; 可吸態リン; リン供給速度; Hedely法; 年間P吸収量; 火山被害地; N; P比; 熱帯林土壌; Bray II法; 可給体リン; 微生物体リン; 無機態リン; 有機態

Phosphorus fractions by Hedley method and microbial biomass P (MBP) have been investigated in general Japanese forest, tropical forest and karst region forest soils to clarify the characteristics of P and P supply to forest vegetation. The results are summarized as follows.1. Available-P (Ion fraction-P + Bicarb-P) concentrations were remarkable low (under 30 μg P/g), and their values were lower than the annual uptake P by forest vegetation.2. Mineralizable-P is much in general Japanese forest. Phosphorus mineralization rate from organic P is important for P supply to forest vegetation.3. In tropical forest soil with strong weathering in East Kalimantan in Indonesia, total-P amount, available-P ratio and mineralizable-P ratio decreased with decreases of forest vegetation.4. MBP concentrations were greater than labile-P (available plus mineralizable-P) concentrations, so MBP pool is important for P supply to tropical forest.5. In forest soils in a karst region of the upper Yangtze River in China, both available-P and mineralizable-P have strong positive correlation with soil pH and total-C.6. Available-P concentrations by Hedley method have positive correlation with P concentrations by Bray II and Olsen methods. Available-P by Hedley is nearly equal to Bray II-P.7. MBP concentrations were nearly equal as labile-P concentrations, so MBP is index of P supply evaluation in karst region forest.8. In the region of the thick and very hard volcanic ash sedimentation in Miyake Island, Alnus sieboldiana grew a lot with their root nodule because of poor N supply in the ash layer.9. The tropical natural forest and Kanto region forest in Japan, which have rich N supply, had P limit condition compared to N condition.10. We discuss that P supply to root noble is the key to forest recovery in tropical degradation forest and in acid soil on Miyake Island.

Hedley方法和微生物生物量P（MBP）的磷级分已经在日本一般森林，热带森林和喀斯特地区森林土壤中进行了研究，以阐明P和P供应对森林植被的特征。结果总结如下1。可用的P（离子分数-P + BICARB-P）浓度显着低（低于30μgp/g），其值低于森林植被的年度吸收P。2。可矿化-P在日本一般森林中很多。来自有机P的磷矿化速率对于P供应森林蔬菜很重要3。在印度尼西亚东加利曼坦东部的热带森林土壤中，随着森林蔬菜的下降，总P量，可用的P比和可矿化的P比降低了。4。 MBP浓度大于不稳定-P（可用加矿物-P）浓度，因此MBP池对于对热带森林的P供应很重要。5。在中国上扬河上河喀斯特地区的森林土壤中，可用的P和可矿化-P都与土壤pH值和总C.6都具有很强的正相关性。 Hedley方法可用的P浓度与Bray II和Olsen方法的P浓度具有正相关。赫德利（Hedley）可用的P几乎等于Bray II-P.7。 MBP浓度几乎与不稳定-P浓度相等，因此MBP是喀斯特地区森林中P供应评估的指数。8。在Miyake岛的厚且非常坚硬的火山灰沉积区域，由于灰分层的n供应较差，Alnus sieboldiana的根结节生长了很多。9。日本的热带天然森林和关东森林（具有丰富的n供应）与n条件相比有P限制。10。我们讨论了根贵族的p供应是热带降解森林和宫基岛上酸性土壤中森林恢复的关键。

项目成果

東カリマンタン熱帯早生樹人工林の養分循環と持続的管理への応用

东加里曼丹热带快材人工林的养分循环及其在可持续管理中的应用

• 发表时间: 2006
• 作者: H.;TODA;K.;HANAOKA;K.;KISHIMOTO;K.;HAIBARA;Y.;KAMETANI;喜多智・戸田浩人・生原喜久雄・Cahyono Agus
• 通讯作者: 喜多智・戸田浩人・生原喜久雄・Cahyono Agus

Soil Microbial Biomass and Organic Matter Mineralization of Mountain -Closured Stands in the Karst Region of Upper Yangtze River

长江上游喀斯特地区山地封闭林土壤微生物量及有机质矿化

• 发表时间: 2006
• 作者: Y.;TIAN;K.;TAKANASHI;T.;ARM;H.;TODA;K.;HAIBARA
• 通讯作者: HAIBARA

長江上流のカルスト地域における封山育林地の微生物バイオマスと無機化活性

长江上游喀斯特地区丰三林微生物量及矿化活性

• 发表时间: 2006
• 作者: S.;KITA;H.;TODA;K.;HAIBARA;C.;AGUS;田野・高梨清美・荒井知朗・戸田浩人・生原喜久雄
• 通讯作者: 田野・高梨清美・荒井知朗・戸田浩人・生原喜久雄

森林土壌(「森林・林業実務必携」森林・林業実務必携編集委員会・編)

森林土壤（《森林与林业实用精要》森林与林业实用精要编委会主编）

• 发表时间: 2007
• 作者: Y.;TIAN;K.;TAKANASHI;T.;ARM;H.;TODA;K.;HAIBARA;戸田浩人
• 通讯作者: 戸田浩人

Mapping and mechanisms of acid buffer effect in of volcanic ash on surface soil in Miyake island

三宅岛表层土壤火山灰酸缓冲作用图谱及机制

• 发表时间: 2007
• 作者: H.;TODA;K.;HANAOKA;K.;KISHIMOTO;K.;HAIBARA;Y.;KAMETANI
• 通讯作者: KAMETANI