Results 21 to 30 of about 17,349,625 (306)

Rainfall Deduction Method for Estimating Non-Point Source Pollution Load for Watershed [PDF]

, 2004
The water pollution can be divided into point source pollution (PSP) and non-point source pollution (NSP). Since the point source pollution has been controlled, the non-point source pollution is becoming the main pollution source.
Cai, Ming, Li, Huai-en, KAWAKAMI, Yoji
core   +3 more sources

Improvement on Management of Non-point Source Pollution for Reasonable Implementation of TMDL - Focusing on Selection of Non-point Source Pollution Management Region and Management of Non-point Source Pollutant -

Journal of Korean Society of Environmental Engineers, 2014
For effective implementation of total maximum daily load (TMDL), this study presented the improving plans of nonpoint source pollution management including the classification of non-point source pollution, calculation of non-point source pollution load (generated, discharged), selection of non-point source pollution management regions and management of
Sang-Jin Yi, Young-Il Kim
openaire   +1 more source

Control of non-point source pollution by a natural wetland

Water Science and Technology, 2001
Wetland creation and restoration is a reliable and efficient technology for the remediation of contaminated water. Knowledge from the natural wetland systems would be necessary to enhance the operational efficiency of constructed wetlands. In this study, a mountainous wetland located in McDowell County, North Carolina, USA was selected to demonstrate ...
C M, Kao, M J, Wu
openaire   +2 more sources

Impacts of Fertilization Alternatives and Crop Straw Incorporation on N2O Emissions from a Spring Maize Field in Northeastern China

Journal of Integrative Agriculture, 2014
Spring maize is one of the most popular crops planted in northeastern China. The cropping systems involving spring maize have been maintaining high production through intensive management practices.
Li YANG, Li-gang WANG, Hu LI, Jian-jun QIU, Hui-ying LIU   +4 more
doaj   +1 more source

Temporal and Spatial Variation Characteristics of Water Quality in the Lower Reaches of Danshui River in Guangdong

Guangdong nongye kexue, 2023
【Objective】Taking the lower reaches of Danshui River, a major regulated river in Guangdong Province, as the research object, the temporal and spatial dynamic changes of pollutants in its main tributaries were investigated.【Method】Through the method of ...
Yuchan OU, Jian SHEN, Ruiming CHEN, Mengjun LI, Dongxian LI, Tingrui LIN, Ronghui WANG, Siyuan WANG, Shaoying AI   +8 more
doaj   +1 more source

Long-term straw returning improve soil K balance and potassium supplying ability under rice and wheat cultivation

Scientific Reports, 2021
The aims of the present study were to provide scientific bases for rational use of crop straw to substitute chemical potassium (K) input. The effects of potassium fertilization and straw incorporation on soil K balance and K supplying in a long-term (14 ...
Zhiyi Zhang, Dongbi Liu, Maoqian Wu, Ying Xia, Fulin Zhang, Xianpeng Fan   +5 more
doaj   +1 more source

Impacts of Non-Point Source Pollution Regulations on Mississippi Agriculture [PDF]

Journal of Agricultural and Applied Economics, 1979
The Federal Water Pollution Control Act of 1972, PL92-500, established the goals of making the nation's streams and lakes swimmable and fishable by 1983 and eliminating both point and non-point pollution discharge by 1985. Implementation of this act, even if carried out uniformly and on the basis of scientifically determined information, could have far-
Hurt, Verner G., Reinschmiedt, Lynn L.
openaire   +2 more sources

Fabrication of hemicellulose-derived supercapacitor and Pd@lignin nanosphere catalyst by targeted lignocellulose fractionation

Industrial Crops and Products
Upgrading lignocellulose resources into value-added products is charming but encounters challenges due to their structural heterogeneity and product complexity.
Feiyue Shen, Yuhang Wang, Zhiwen Zeng, Zhanglin Liu, Shuangrong Zhu, Liang Yang, Jinguang Hu, Dong Tian, Fei Shen   +8 more
doaj   +1 more source

The Lag Effect of National Nitrogen Management on Nitrogen Use Efficiency and Greenhouse Gas Emission

Nitrogen
Effective nitrogen (N) management is essential for ensuring food security, promoting agricultural sustainability, and addressing climate change due to the rise in fertilizer use since the 20th century.
Wangzheng Shen, Qianrui Jing, Sisi Li, Yanhua Zhuang, He Duan, Junchong Wei, Jing He, Yun Du, Liang Zhang   +8 more
doaj   +1 more source

A Newly Discovered Humic-Reducing Bacterium, Pseudomonas geniculata PQ01, Isolated From Paddy Soil Promotes Paraquat Anaerobic Transformation

Frontiers in Microbiology, 2020
Due to toxicity and persistence of paraquat (a widely used herbicide), eco-friendly remediation approaches to its contamination and effective antidotes to its poisoning have been highly desired and raised increasing concerns.
Chunyuan Wu, Chunyuan Wu, Chunyuan Wu, Xiaoyan Wu, Shanshan Chen, Dongming Wu, Dongming Wu   +6 more
doaj   +1 more source