气候变化领域集成服务门户(CCPortal): Vegetation Effects on Phosphorus Runoff from Headwater Catchments in a Cool-Temperate Region with Landslides, Northern Japan

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DOI	10.3390/f15020229
	Vegetation Effects on Phosphorus Runoff from Headwater Catchments in a Cool-Temperate Region with Landslides, Northern Japan
	Ide, Jun'ichiro; Naito, Rikuto; Arata, Yohei; Hirokawa, Ryoma; Endo, Izuki; Gomi, Takashi
发表日期	2024
EISSN	1999-4907
起始页码	15
结束页码	2
卷号	15 期号:2
英文摘要	Forest vegetation and soils in headwaters can control runoff and surface erosion. However, it remains unclear how vegetation affects nutrient exports from cool-temperate forest headwaters during intense rain events that transport sediment-associated nutrients, such as phosphorus (P). To clarify this, we targeted an upstream landslide area and analyzed P contents in surface soils and total P (TP) in stream water of the undisturbed (UF) and landslide-bearing forest (LB) catchments. The soil P content was higher in the UF catchment than in the LB catchment, but differences in the average TP concentration and load during low flows between these catchments were not significant. Conversely, the overall runoff and the TP load were three and ten times higher in the LB catchment than in the UF catchment, respectively, during a rain event with daily precipitation of 49 mm, despite the soil P content being much lower in the LB catchment. Particulate P (PP) accounted for more than 90% of the TP load during the rain event in the LB catchment, whereas dissolved P accounted for more than 80% of the TP load in the UF catchment. Therefore, soil surface mobility strongly affected P transport in the forest catchments. Our study suggests that vegetation not only reduces PP loads by controlling runoff, but also influences stream P forms in cool-temperate forests.
英文关键词	Atsuma; dissolved organic phosphorus; dissolved organic matter; fine sediment particle; natural disaster; surface erosion
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001168356000001
来源期刊	FORESTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298076
作者单位	University of Hyogo; Nagoya University
推荐引用方式 GB/T 7714	Ide, Jun'ichiro,Naito, Rikuto,Arata, Yohei,et al. Vegetation Effects on Phosphorus Runoff from Headwater Catchments in a Cool-Temperate Region with Landslides, Northern Japan[J],2024,15(2).
APA	Ide, Jun'ichiro,Naito, Rikuto,Arata, Yohei,Hirokawa, Ryoma,Endo, Izuki,&Gomi, Takashi.(2024).Vegetation Effects on Phosphorus Runoff from Headwater Catchments in a Cool-Temperate Region with Landslides, Northern Japan.FORESTS,15(2).
MLA	Ide, Jun'ichiro,et al."Vegetation Effects on Phosphorus Runoff from Headwater Catchments in a Cool-Temperate Region with Landslides, Northern Japan".FORESTS 15.2(2024).