globalchange  > 过去全球变化的重建
DOI: 10.1002/ldr.3288
WOS记录号: WOS:000466089200010
论文题名:
Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China
作者: Du, Heqiang1,2,3; Wang, Tao1,2; Xue, Xian1,2; Li, Sen1,2
通讯作者: Du, Heqiang
刊名: LAND DEGRADATION & DEVELOPMENT
ISSN: 1085-3278
EISSN: 1099-145X
出版年: 2019
卷: 30, 期:8, 页码:1006-1022
语种: 英语
英文关键词: PM10 ; SOC ; TN ; TP ; wind erosion
WOS关键词: INNER MONGOLIA REACH ; DUST EMISSION ; CLIMATE-CHANGE ; YELLOW-RIVER ; LAND-USE ; MODEL ; IMPACT ; PLATEAU ; DESERTIFICATION ; CONSISTENCY
WOS学科分类: Environmental Sciences ; Soil Science
WOS研究方向: Environmental Sciences & Ecology ; Agriculture
英文摘要:

The loss of nutrients induced by wind erosion causes serious land degradation. Northern China suffers from severe wind erosion that causes massive amounts of soil nutrients to be lost and results in land degradation. To thoroughly comprehend the mechanisms of land degradation in Northern China, the spatiotemporal distribution of nutrients losses induced by wind erosion must be considered. Therefore, in this study, a wind erosion model was employed to obtain the PM10 emissions in Northern China from 2001 to 2014, and the quantities of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) entrained by PM10 were obtained using the integrated soil database of China. The results showed that the losses of SOC, TN, and TP induced by wind erosion were 0.894, 0.184, and 0.123 Tg/a, respectively, and the spatial distributions of these three nutrients differed from one another. According to the Moderate Resolution Imaging Spectroradiometer land-cover data, the nutrients lost from desert ecosystems contributed the largest fractions of the total nutrients lost in Northern China, and the fractions of SOC, TN, and TP losses from the desert ecosystems all exceeded 50%. Following the desert ecosystems, the grassland ecosystems also had higher fractions of nutrients losses. The farmland ecosystems, which were the most severely impacted by human activities, contributed to less than 10% of the total nutrients losses.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/138401
Appears in Collections:过去全球变化的重建

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作者单位: 1.Chinese Acad Sci, Key Lab Desert & Desertificat, West Donggang Rd 320, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Gansu, Peoples R China

Recommended Citation:
Du, Heqiang,Wang, Tao,Xue, Xian,et al. Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China[J]. LAND DEGRADATION & DEVELOPMENT,2019-01-01,30(8):1006-1022
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