scholarly journals Winter Wheat Water Productivity Evaluated by the Developed Remote Sensing Evapotranspiration Model in Hebei Plain, China

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Shengwei Zhang ◽  
Hongbin Zhao ◽  
Huimin Lei ◽  
Hongbo Shao ◽  
Tingxi Liu
Keyword(s):  
Winter Wheat ◽  
Agricultural Development ◽  
Water Productivity ◽  
Temporal Variations ◽  
Rapid Decline ◽  
Net Radiation ◽  
Agricultural Water ◽  
The West ◽  
Groundwater Levels ◽  
Hebei Plain

Agricultural water is the main reason for the rapid decline of the NCP groundwater levels. It is of vital importance for the NCP sustainable agricultural development to master the ETa and its CWP. In this paper, the EBEM model was developed according to the theory of energy balance. From 2001 to 2006, the winter wheat ETa and CWP were estimated, and the spatial and temporal variations and their influencing factors were studied in the Hebei Plain. The results indicate that the EBEM model performed well by applying MODIS data to estimate the daily net radiation and ETa. For the daytime net radiation, the relative error between the estimation and the measurement amounted to 8.2% and the SEE was 0.82 MJ m−2/day. The average ETa deviation between the estimates and the measures amounted to 0.86 mm daily, and the SEE was 1.2 mm. The spatial variations indicated that the major distribution of ETa ranged from 350 to 450 mm, which trended downward within the study area from west to east. In the study period, the winter wheat CWP was mainly distributed between 0.29 and 1.67 kg/m3. In space, the CWP was higher in the west than in the east.

scholarly journals Rainwater Harvesting for Sustainable Agriculture in High Water-Poor Areas in the West Bank, Palestine

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 380 ◽  
Author(s):  
Sameer Shadeed ◽  
Tariq Judeh ◽  
Michel Riksen
Keyword(s):  
Food Security ◽  
Agricultural Development ◽  
Rainwater Harvesting ◽  
West Bank ◽  
High Water ◽  
Agricultural Water ◽  
The West ◽  
Gis Environment ◽  
Total Study Area ◽  
Very High

In most arid regions of the world, the increasing agricultural water supply–demand gap jeopardizes sustainable agricultural development and, as such, undermines local food security. In such situations, unconventional water resource practices such as agricultural rainwater harvesting (ARWH) can be potentially used to tackle agricultural water poverty (AWP). This study aims to integrate AWP and agricultural rainwater harvesting suitability (ARWHS) maps to identify locations where ARWH can be of the most benefit to the West Bank, Palestine. These maps were developed under the GIS environment. The weighted overlay summation process (WOSP), supported by the analytical hierarchy process (AHP), was utilized. Research findings of the AWP map indicate that high to very high AWP covers about 61% of the study area, whereas, the findings of the ARWHS map shows that highly suitable ARWH areas cover 65% of the total study area. Further, 31% of the study area has highly suitable sites for the implementation of proper ARWH techniques. Finally, the combined mapping between the ARWHS map and agricultural lands indicates that high to very high ARWH-suitable areas cover 53% of the rough grazing areas (62% of the entire West Bank area). Thus, the implementation of proper ARWH techniques in such areas is seen to be a sustainable water management option for achieving agricultural sustainability and, accordingly, improved food security in the West Bank, Palestine.

Performance of Financial Sectors for Agricultural Development in West Tripura District of Tripura

2020 ◽  
pp. 384-389
Keyword(s):  
Random Sampling ◽  
Agricultural Development ◽  
Sampling Technique ◽  
Analysis Data ◽  
Survey Method ◽  
The West ◽  
Field Officer ◽  
Increasing Trend ◽  
Farm Finance ◽  
Important Input

Finance is an important input of agriculture. Sufficient and timely credit to the farmer is vital and indispensable for the rehabilitation and progress of agriculture. The present study was conducted in the West Tripura district of Tripura to analyze the magnitude, utilization, and constraints of farm finance availed by the borrowers in the district. 120 sample farmers and 20 lenders were selected using a purposive random sampling technique for detailed analysis. Data were collected by survey method using pretested schedules. The study revealed an increasing trend in terms of branch expansion, total deposits and advances over the years. Moreover, the C-D ratio increased from 41 in 2013-14to 45.77 in 2017-18. The sector-wise advances of banks showed an increasing trend and percentage share to the agricultural, and non-farm sectors was 27.57 and 72.43 in West Tripura. Inadequacy of loans, and lengthy lending procedures were problems identified by the borrower farmers. The majority of farmers (89.16 percent) opined that the borrowed amount was not adequate for meeting their farm expenses. As per the bank officials, the non-availability of the land records (80 percent) with the borrower was a major problem. To improve borrowing and utilization of farm finance remedial measures such as post-credit supervision by the Bank Field Officer and disbursement of the major portion of the loan in kind form may be adopted.

Spatio-temporal variations of winter wheat water requirement and climatic causes in Huang-Huai-Hai Farming Region

2012 ◽  
Vol 20 (3) ◽  
pp. 356-362 ◽  
Author(s):  
Xiao-Lin YANG ◽  
Zhen-Wei SONG ◽  
Hong WANG ◽  
Quan-Hong SHI ◽  
Fu CHEN ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Temporal Variations ◽  
Water Requirement ◽  
Spatio Temporal

Monitoring agricultural water in the desert environment of New Valley Governorate for sustainable agricultural development: a case study of Kharga

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mohammed A. El-Shirbeny ◽  
Abdelraouf M. Ali ◽  
Ghada A. Khdery ◽  
Nasser H. Saleh ◽  
Nagwan M. Afify ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Agricultural Water ◽  
Desert Environment

Recruitment of the barnacle Balanus amphitrite in a tropical estuary: implications of environmental perturbation, reproduction and larval ecology

2005 ◽  
Vol 85 (4) ◽  
pp. 909-920 ◽  
Author(s):  
Dattesh V. Desai ◽  
A.C. Anil
Keyword(s):  
Temporal Variations ◽  
Larval Abundance ◽  
Balanus Amphitrite ◽  
Larval Ecology ◽  
The West ◽  
Environmental Perturbation ◽  
Recruitment Failure ◽  
Acorn Barnacle ◽  
New Recruits ◽  
Impulsive Release

Phytoplankton blooms are known to influence barnacle recruitment and in boreal regions spring blooms work as an important trigger. Close to the west coast of the sub-continent of India, blooms tend to be triggered by breaks in the monsoon and the recurrence of the monsoon after a short break can stress the new recruits. The recruitment of Balanus amphitrite, an acorn barnacle, at Dona Paula Bay at the mouth of Zuari estuary, Goa, India was studied. Observations included variations in recruitment, larval abundance, development and reproduction. Adult conditioning and inter-brood variations were important factors in the larval ecology of this organism. The results indicate that the impulsive release of larvae during breaks between monsoons could be a short-sighted luxury for Balanus amphitrite in these waters. Temporal variations or recruitment failure in such environments can be attributed to inappropriate cue synchronization.

scholarly journals Long-Term Winter Wheat (Triticum aestivum L.) Seasonal Irrigation Amount, Evapotranspiration, Yield, and Water Productivity under Semiarid Climate

Agronomy ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 96 ◽  
Author(s):  
Koffi Djaman ◽  
Michael O’Neill ◽  
Curtis Owen ◽  
Daniel Smeal ◽  
Margaret West ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Water Productivity ◽  
Triticum Aestivum L ◽  
Irrigation Amount ◽  
Semiarid Climate ◽  
Seasonal Irrigation
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