نتایج جستجو برای: agricultural total factorproductivity

تعداد نتایج: 890560  

Elham Kalbali Mostafa Mardani Saman Ziaee Samira Soltani

Water shortage crisis is an issue that has led to drastic changes in different agricultural policies, especially in arid and semi-arid areas. Uncertainty in the amount of resources, e.g. water, used for agricultural production entails risk for farmers' income and cropping pattern changes. In the present study, the robust optimization model was used for optimal allocation of arable lands of Khor...

2013
Erica R. McKenzie Thomas M. Young

A novel fractionation method, based on both particle size and settling characteristics, was employed to examine metal distributions among five fractions. In-stream and stormwater runoff samples were collected from four land use types: highway, urban, agricultural (storm event and irrigation), and natural. Highway samples contained the highest dissolved concentrations for most metals, and freshw...

2017
Yu Liu Xiaohong Hu Qian Zhang Mingbo Zheng

Water resources play a vital role in human life and agriculture irrigation, especially for agriculture-dominant developing countries and regions. Improving agricultural water use efficiency has consequently become a key strategic choice. This study, based on Zhangye City’s economic characteristics and data, applies a static Computable General Equilibrium (CGE) model with a constant elasticity o...

2013
Nirodha De Silva Jaime Malaga Jeff Johnson

Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. Examining the effects of trade liberalization on agricultural sector is an interesting empirical question. This paper provides a quantitative assessment of the trade policy impacts on agricultural sector growth in Sri Lanka based on the nati...

Journal: :Energies 2022

Agricultural mechanization is an important factor to improve the green total productivity of planting industry, which key way realize sustainable development and high-quality agriculture. Based on panel data 30 provinces in China from 2001 2019, this paper uses stochastic frontier analysis method output-oriented distance function measure China’s industry based net carbon sinks, empirically stud...

Journal: :Agriculture 2022

The carbon trading system affects all aspects of the economy and society profoundly. Agriculture, as a high-carbon-emitting industry, has been hard-hit. China’s agricultural activities will emit about 820 million tons dioxide equivalents, accounting for 7% country’s total emissions. In order to develop green low-carbon control greenhouse gas emissions, China officially launched pilot emissions ...

Journal: :Sustainability 2021

The growth of agricultural total factor productivity (TFP) is seen as a driving force for the sustainable development agriculture. Meanwhile, promotion urbanization in China has exerted profound impact on production. This paper calculates TFP and analyzes effect urbanization. Firstly, DEA-Malmquist method used to calculate dynamic change from 2004 2016. Secondly, spatial spillover investigated ...

Journal: : 2022

MIKTA is a diverse and cross-regional grouping of powers that brings together Mexico, Indonesia, the Republic Korea, Turkey Australia. countries are significant economic all members Group Twenty. Bye way, agricultural development one most powerful tools to finish extreme poverty, improve shared prosperity, find food for forecasted 9.7 billion people by 2050. But growth, reduction in powerty sec...

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