Lưu trữ Water Resources - EEPSEA Partnership

Pricing for Groundwater Use of Industries in Metro Manila, Philippines

research — Wed, 06 Jan 2021 15:16:31 +0000

By Maria Corazon M. Ebarvia
Summary: The rapid growth and urbanisation of the Philippines’ National Capital Region (NCR) has resulted in increasing demand for water. Migration has compounded the problem. Today, NCR is faced with growing needs which have outpaced the capacity of the water agency ¡ Metropolitan Waterworks and Sewerage Systems (MWSS) ¡ to expand supply. Unserved sectors have resorted to ground well construction and illegal connections to MWSS pipes. As a result, average annual groundwater withdrawals have consistently exceeded the recharge rate, lowering the water table by about 6-12 m/yr. Groundwater resources are also threatened by saltwater intrusion, contamination from pollutants, and eventual depletion. Thus, current extraction and utilization of a unit of these resources involves an opportunity cost ¡ the value that can be gained in the future. This study was conducted to estimate the marginal opportunity cost (MOC) involved in meeting the water requirements of the industrial sector, and determine the right mix of pricing, fiscal and regulatory instruments for efficient use of groundwater. The main water source for industries in Metro Manila is groundwater (80%). Only about 20% get MWSS-supplied water, and some must augment water requirements by buying water from private vendors/tankers.

Research Report: Download
Country: Philippines
Publication Year : 1997
Research Areas : Water Resources
Research Topic : Water Pricing
Analytical Framework : Resource Pricing

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Measuring environmental sustainability of coffee production using econometric and frontier-based models: Vietnam as a case study

research — Mon, 04 Jan 2021 13:40:16 +0000

By Thong Quoc Ho
Summary: Amid growing concerns related to excessive use of irrigation water and overuse of chemical fertilizers in coffee production in Vietnam, this study evaluates both economic and environmental performance of coffee farmers using a panel data set of 829 farms over three crop years: 2012/13, 2013/14, and 2014/15. Specifically, it looked at the difference in environmental efficiency between certified and conventional (uncertified) coffee farms groups. It was found that in the first crop year of the data set, certified farms performed better than conventional (uncertified) farms for the three types of environmental efficiency (i.e., irrigation water efficiency, nutrient efficiency, and eco-efficiency). These results were similar in the second crop year in terms of irrigation efficiency, nutrient efficiency, and efficiency variance models (i.e., eco-efficiency models). However, in the most recent crop year (2014/15), the difference between certified and uncertified farms appears to be unclear. An interesting finding is that modern irrigation systems and the availability of windbreak trees could improve environmental efficiency.

Research Report: Download

Country : Vietnam

Publication Year : 2017

Research Areas : Agriculture, Water resources

Research Topic : Water institutions, projects & allocation

Analytical Framework : Economic analysis

Bài viết Measuring environmental sustainability of coffee production using econometric and frontier-based models: Vietnam as a case study đã xuất hiện đầu tiên vào ngày EEPSEA Partnership.