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	Distributions of soil phosphorus in China's densely populated village landscapes
	Jiao, Jiaguo1,2; Ellis, Erle C.3; Yesilonis, Ian4; Wu, Junxi5; Wang, Hongqing6; Li, Huixin2; Yang, Linzhang1
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2010-04-01
卷号	10期号:3页码:461-472
关键词	China Land cover Land form Land use Pollution Soil phosphorus Village landscapes
ISSN号	1439-0108
DOI	10.1007/s11368-009-0135-4
通讯作者	Yang, Linzhang(lzyang@issas.ac.cn)
英文摘要	Village landscapes, which integrate small-scale agriculture with housing, forestry and a host of other land use practices, cover more than 2 x 10(6) km(2) across China. Village lands tend to be managed at very fine spatial scales (a parts per thousand currency sign30 m), with managers altering soil fertility and even terrain by terracing, irrigation, fertilizing, and other land use practices. Under these conditions, accumulation of excess phosphorous in soils has become important contributor to eutrophication of surface waters across China's densely populated village landscapes. The aim of this study was to investigate relationships between fine-scale patterns of agricultural management and soil total phosphorus (STP) within China's village landscapes. First, China's village landscapes were divided into five environmentally distinct regions across China. Within each region, a single 100 km(2) research site was then selected, and 12 500 x 500 m square landscape sample cells were selected for fine-scale mapping. Soils were sampled within fine-scale landscape features using a regionally weighted landscape sampling design. STP stock across the 0.9 x 10(6) km(2) area of our five village regions was approximately 0.14 Pg (1 Pg = 10(15) g), with STP densities ranging from 0.08 kg m(-2) in Tropical Hilly Region to 0.22 kg m(-2) in North China Plain and Yangtze Plain, with village landscape STP density varying significantly with precipitation and temperature. Outside the Tropical Hilly Region, STP densities also varied significantly with land form, use, and cover. As expected, the highest STP densities were found in agricultural lands and in areas near buildings, while the lowest were in nonproductive lands and forestry lands. As a combined result of these high STP densities and the predominance of agricultural land use, most village STP stock was found in agricultural lands. A surprisingly large portion of village STP stock was associated with built structures and disturbed lands surrounding them (15.0% in North China Plain, 19.3% in Yangtze Plain, 5.9% in Sichuan Hilly Region, 7.8% in Subtropical Hilly Region, 2.7% in Tropical Hilly Region), which had a significant relationship with population density. Our results demonstrated that local patterns of land management and human residence were associated with substantial differences in STP both within and across China's village landscapes which have increased their potential contribution to P pollution. With the rapid change in land use/land cover in China's densely populated landscapes, such information is essential for rational planning of future management to reach agricultural sustainability.
收录类别	SCI
WOS关键词	LAND-USE ; CARBON ; RUNOFF ; CULTIVATION ; NITROGEN ; IMAGERY ; STOCKS
WOS研究方向	Geology ; Agriculture
WOS类目	Geosciences, Multidisciplinary ; Soil Science
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000275790400014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558823
专题	南京土壤研究所
通讯作者	Yang, Linzhang
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China 2.Nanjing Agr Univ, Dept Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China 3.Univ Maryland, Dept Geog & Environm Syst, Baltimore, MD 21250 USA 4.Univ Maryland Baltimore Cty, No Res Stn, USDA, US Forest Serv,Baltimore Ecosyst Study, Baltimore, MD 21227 USA 5.China Agr Univ, Dept Agron & Agroecol, Beijing 100094, Peoples R China 6.US Geol Survey, Natl Wetlands Res Ctr, Lafayette, LA 70506 USA
推荐引用方式 GB/T 7714	Jiao, Jiaguo,Ellis, Erle C.,Yesilonis, Ian,et al. Distributions of soil phosphorus in China's densely populated village landscapes[J]. JOURNAL OF SOILS AND SEDIMENTS,2010,10(3):461-472.
APA	Jiao, Jiaguo.,Ellis, Erle C..,Yesilonis, Ian.,Wu, Junxi.,Wang, Hongqing.,...&Yang, Linzhang.(2010).Distributions of soil phosphorus in China's densely populated village landscapes.JOURNAL OF SOILS AND SEDIMENTS,10(3),461-472.
MLA	Jiao, Jiaguo,et al."Distributions of soil phosphorus in China's densely populated village landscapes".JOURNAL OF SOILS AND SEDIMENTS 10.3(2010):461-472.

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