Application of modified export coefficient method on the load estimation of non-point source nitrogen and phosphorus pollution of soil and water loss in semiarid regions

Environmental Science and Pollution Research International
Lei WuDan Li

Abstract

Chinese Loess Plateau is considered as one of the most serious soil loss regions in the world, its annual sediment output accounts for 90 % of the total sediment loads of the Yellow River, and most of the Loess Plateau has a very typical characteristic of "soil and water flow together", and water flow in this area performs with a high sand content. Serious soil loss results in nitrogen and phosphorus loss of soil. Special processes of water and soil in the Loess Plateau lead to the loss mechanisms of water, sediment, nitrogen, and phosphorus are different from each other, which are greatly different from other areas of China. In this study, the modified export coefficient method considering the rainfall erosivity factor was proposed to simulate and evaluate non-point source (NPS) nitrogen and phosphorus loss load caused by soil and water loss in the Yanhe River basin of the hilly and gully area, Loess Plateau. The results indicate that (1) compared with the traditional export coefficient method, annual differences of NPS total nitrogen (TN) and total phosphorus (TP) load after considering the rainfall erosivity factor are obvious; it is more in line with the general law of NPS pollution formation in a watershed, and it can refl...Continue Reading

References

Feb 27, 2004·Oecologia·Amy T AustinSean M Schaeffer
Nov 13, 2004·Journal of Environmental Quality·Murray R HartM Long Nguyen
Feb 25, 2005·Nature·Jim Giles
Nov 26, 2009·Environmental Pollution·Edwin D OngleyYu Tao
Mar 31, 2010·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Lei WuChong-Ming Li

❮ Previous
Next ❯

Citations

Oct 22, 2016·Environmental Science and Pollution Research International·Xue LiYuqiu Wang
May 12, 2017·Environmental Science and Pollution Research International·Rui YangWenshuo Wei
Jul 25, 2017·The Science of the Total Environment·Qiang FengShuai Wang
Sep 29, 2017·Environmental Science and Pollution Research International·Ying HouYueping Luo
Mar 9, 2018·Environmental Science and Pollution Research International·Lei WuXiaoyi Ma
May 17, 2018·Environmental Science and Pollution Research International·Xian ChengYongcai Jing
Feb 15, 2019·Environmental Science and Pollution Research International·Huiliang WangZening Wu
Nov 22, 2017·Environmental Science and Pollution Research International·Lei WuXiao-Yi Ma
May 5, 2018·Environmental Science and Pollution Research International·Bao-Lei ZhangLei Yao
Mar 2, 2019·Environmental Science and Pollution Research International·Xian ChengRanhao Sun
Jul 31, 2019·Environmental Monitoring and Assessment·Arabinda Sharma, K N Tiwari
Mar 23, 2020·Environmental Science and Pollution Research International·Jun YangYongzhong Feng
Feb 19, 2021·Environmental Science and Pollution Research International·Xiaomeng GuoYujiao Wang
May 4, 2021·The Science of the Total Environment·D Nākoa FarrantAshley E Larsen
Aug 16, 2021·Environmental Science and Pollution Research International·Lilin ZouYansui Liu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Wenzan LiXiaoxue Wang
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Yang Ou, Xiaoyan Wang
Water Science and Technology : a Journal of the International Association on Water Pollution Research
Lei WuChong-Ming Li
© 2022 Meta ULC. All rights reserved