CCPortal
DOI10.1002/ldr.3288
Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China
Du, Heqiang1,2,3; Wang, Tao1,2; Xue, Xian1,2; Li, Sen1,2
发表日期2019
ISSN1085-3278
EISSN1099-145X
卷号30期号:8页码:1006-1022
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.


WOS研究方向Environmental Sciences & Ecology ; Agriculture
来源期刊LAND DEGRADATION & DEVELOPMENT
来源机构中国科学院西北资源环境生态研究院
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/97807
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
推荐引用方式
GB/T 7714
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]. 中国科学院西北资源环境生态研究院,2019,30(8):1006-1022.
APA Du, Heqiang,Wang, Tao,Xue, Xian,&Li, Sen.(2019).Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China.LAND DEGRADATION & DEVELOPMENT,30(8),1006-1022.
MLA Du, Heqiang,et al."Estimation of soil organic carbon, nitrogen, and phosphorus losses induced by wind erosion in Northern China".LAND DEGRADATION & DEVELOPMENT 30.8(2019):1006-1022.
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