scholarly journals Practices of groundwater over-exploitation control in Hebei Province

Water Policy ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. 591-601
Author(s):  
Yu Lili ◽  
Ling Minhua ◽  
Chen Fei ◽  
Ding Yueyuan ◽  
Lv Cuimei
Keyword(s):  
Arid Regions ◽  
Irrigation System ◽  
Management Strategies ◽  
Pilot Project ◽  
Hebei Province ◽  
Chinese Government ◽  
Pilot Projects ◽  
Groundwater Supply ◽  
Over Exploitation ◽  
Semi Arid

Abstract Twenty-one provinces in China have the problem of groundwater over-exploitation, and Hebei is the province with the longest-lasting and most severe groundwater over-exploitation problems. In 2014, the Chinese government initiated a pilot project of groundwater over-exploitation control in Hebei Province. Comprehensive measures have been adopted, including replacement of groundwater supply with surface water, development of a water-saving agricultural irrigation system, adjustment of agricultural planting mode, and improvement of water use right and water pricing systems. Pilot projects of groundwater over-exploitation treatment in Hebei Province can provide a good reference for other arid and semi-arid regions to implement and strengthen groundwater management strategies.

Role of irrigation and wastewater reuse: comparison of subsurface irrigation and furrow irrigation

2004 ◽  
Vol 50 (2) ◽  
pp. 61-68 ◽  
Author(s):  
C. Choi ◽  
I. Song ◽  
S. Stine ◽  
J. Pimentel ◽  
C. Gerba
Keyword(s):  
Drip Irrigation ◽  
Arid Regions ◽  
Irrigation System ◽  
Soil Surface ◽  
Furrow Irrigation ◽  
Subsurface Drip Irrigation ◽  
Vegetable Crops ◽  
Viral Contamination ◽  
Subsurface Drip ◽  
Semi Arid

Two different irrigation systems, subsurface drip irrigation and furrow irrigation, are tested to investigate the level of viral contamination and survival when tertiary effluent is used in arid and semi-arid regions. The effluent was injected with bacteriophages of PRD1 and MS2. A greater number of PRD1 and MS2 were recovered from the lettuce in the subsurface drip-irrigated plots as compared to those in the furrow-irrigated plots. Shallow drip tape installation and preferential water paths through cracks on the soil surface appeared to be the main causes of high viral contamination in subsurface drip irrigation plots, which led to the direct contact of the lettuce stems with the irrigation water which penetrated the soil surface. The water use efficiency of the subsurface drip irrigation system was higher than that of the furrow irrigation system. Thus, subsurface drip irrigation is an efficient irrigation method for vegetable crops in arid and semi-arid regions if viral contamination can be reduced. Deeper installation of drip tapes, frequent irrigations, and timely harvests based on cumulative heat units may further reduce health risks by ensuring viral die-off under various field conditions.

Salinity Problems in Groundwater and Management Strategies in Arid and Semi‐arid Regions

2021 ◽  
pp. 42-56
Author(s):  
Balaji Etikala ◽  
Narsimha Adimalla ◽  
Sughosh Madhav ◽  
Srinivasa Gowd Somagouni ◽  
P.L. Keshava Kiran Kumar
Keyword(s):  
Arid Regions ◽  
Management Strategies ◽  
Semi Arid

scholarly journals Uso de FAO-56 y cintilómetro para estimar la evapotranspiración de sorgo (Sorghum bicolor L.) y sus componentes: evaporación del suelo y transpiración de la planta

2019 ◽  
Vol 37 (2) ◽  
pp. 141
Author(s):  
Jesus Enrique Lopez Avendaño ◽  
Julio César Rodríguez ◽  
José Ángel Martínez Gallardo ◽  
Ramón Lizárraga Jiménez ◽  
Tomás Díaz Valdés
Keyword(s):  
Water Management ◽  
Root Mean Square Error ◽  
Arid Regions ◽  
Management Strategies ◽  
Mean Square ◽  
Water Planning ◽  
Daily Evapotranspiration ◽  
Agricultural Areas ◽  
Sorghum Bicolor L ◽  
Semi Arid

Estimating evapotranspiration (ETc) is essential for water planning and management in agricultural areas, particularly in arid and semi-arid regions; ETc partitioning into soil evaporation (E) and plant transpiration (T) would allow the use of more eff icient water management strategies. The aims of the present study were to estimate daily evapotranspiration of sorghum and its components, using the FAO-56 method with the dual crop coeff icient (dual Kc) approach and scintillometer method, and to determine the single crop coeff icient (Kc) and basal crop coeff icient (Kcb) values for different development seasons. Results have shown that using the dual Kc approach allows reasonable simulation of ETc in comparison to values estimated using the scintillometer method. ETc estimated with both methods was 413.8 and 406.3 mm, respectively, resulting in a 1.8% overestimation for FAO-56. Root mean square error (RMSE) was 0.584 mm d-1 and Willmott’s agreement coeff icient (d) was 0.91. Evaporation estimated with FAO-56 was 17.1% of ETc, while with the scintillometer it was 21.6% of ETc. The RMSE of the estimated E values was 0.397 mm d-1 and d = 0.94, while, when comparing T, calculated RMSE was 0.371 mm d-1 and d = 0.98. Kc values estimated with the FAO-56 method were 0.68, 1.06 and 0.4 for initial, middle and end season of the crop, while for the scintillometer, values were 0.75, 0.94 and 0.41, respectively.

A new approach to the fight against desertification in Inner Mongolia

2007 ◽  
Vol 34 (2) ◽  
pp. 95-97 ◽  
Author(s):  
GANG LI ◽  
GAOMING JIANG ◽  
YONGGENG LI ◽  
MEIZHEN LIU ◽  
YU PENG ◽  
...  
Keyword(s):  
Land Surface ◽  
Inner Mongolia ◽  
Arid Regions ◽  
Groundwater Resources ◽  
Tree Planting ◽  
Source Control ◽  
Anthropogenic Factors ◽  
Chinese Government ◽  
Land Restoration ◽  
Semi Arid

The world's arid and semi-arid regions are severely affected by desertification. In China, wind erosion, water erosion, soil salinization and the freezing and melting processes have contributed to 2.64 million km2 of desertified land, covering 27.5% of the country's land surface (State Forestry Administration, Peoples' Republic of China 2005). Although climate change could be a reason for desertification, anthropogenic factors such as overgrazing and overcultivation also contribute to degradation in grassland areas (Millennium Ecosystem Assessment 2005; Zheng et al. 2006). The Chinese government has adopted afforestation as the main measure to control desertification. Major projects, including the ‘Three North Shelterbelt Programme’ (also known as the ‘Green Great Wall’) and the ‘Sandstorm Source Control Project around Beijing and Tianjin’, are necessary to shield northern and eastern agricultural ecosystems against sand and dust (Zhou 2002). However, these countermeasures require substantial effort and investment, and, in the semi-arid and arid regions of Inner Mongolia, newly planted trees have often died of drought, while tree planting could also be responsible for exhausting the precious groundwater resources of these regions (Jackson et al. 2005). Alternative and more practical ways of combating desertification by using multi-disciplinary approaches observing both social and ecological principles are required. The Hunshandake Sandy Land restoration demonstration project conducted by the Chinese Academy of Sciences was an attempt to restore desertified grassland mainly through natural processes, and requiring limited investment.

Nutrients management strategies to improve yield and quality of sugar beet in semi-arid regions

2017 ◽  
Vol 40 (15) ◽  
pp. 2109-2115 ◽  
Author(s):  
Irshad Ahmad ◽  
Bashir Ahmad ◽  
Shahzad Ali ◽  
Muhammad Kamran ◽  
Han Qing Fang ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Arid Regions ◽  
Management Strategies ◽  
Yield And Quality ◽  
Semi Arid
Sign in / Sign up

Export Citation Format

Share Document