scholarly journals Dual Value System and its assessment scheme for understanding and valuing ecosystem services

2019 ◽  
Author(s):  
Haile Yang ◽  
Jiakuan Chen
Keyword(s):  
Ecosystem Services ◽  
River Basin ◽  
Human Life ◽  
Pearl River ◽  
Pearl River Basin ◽  
Value System ◽  
Basin Scale ◽  
Zhujiang River ◽  
Water Provision

AbstractValuing ecosystem services (ES) is helpful for effective ES management. However, there are many limitations in traditional ES valuation approaches, including theoretical challenges and practical difficulties. To overcome these limitations, we proposed a dual value system (DVS). And then, we presented a case study of valuing the water provision in Zhujiang River Basin (Pearl River Basin) based on DVS. DVS follows the axioms that (1) human life would end if we lose any of vital ES which is indispensable to human being’s survival (such as oxygen, freshwater) and (2) ES cannot provide any value to people without human activities. Correspondingly, DVS includes two types of value: the output support value (OSV) of a vital ES refers to the total value produced by human being’s economic and social activities (TVPH) supported by the ES consumption; the optional capacity value (OCV) of a vital ES refers to the optional capacity of supporting TVPH provided by total ES volume. The OCV provided by a vital ES is calculated by using the product of multiplying the OSV (TVPH) by the freedom of choosing the consumption from the total volume of this ES, valued in non-monetary units. Based on DVS, the OSV and OCV of water provision in Zhujiang River Basin were analyzed in river basin scale and sub-basin scale, and the values variation of water provision from 2006 to 2015 was analyzed in sub-basin scale. And then, based on this case study, we discussed the new insights into ES provided by DVS. Results proved that DVS and its assessment scheme overcame the limitations on current ES valuation approaches and provided an innovative quantitative framework to understand and value ES which will help to make good decisions in ES management.

scholarly journals Quantifying the Payments for Ecosystem Services among hydrologic units in Zhujiang River Basin, China based on the indicator of Optional Capacity Value

2019 ◽  
Author(s):  
Haile Yang ◽  
Bin Zhao ◽  
Jiakuan Chen
Keyword(s):  
Ecosystem Services ◽  
River Basin ◽  
Supply And Demand ◽  
Payments For Ecosystem Services ◽  
Pearl River Basin ◽  
Quantitative Indicator ◽  
Ecological Conservation ◽  
Zhujiang River ◽  
Water Provision ◽  
Hydrologic Unit

AbstractEcosystem services (ES) are fundamental to human being’s livelihoods, production and survival. However, the spatial mismatch between ES supply and demand is a common phenomenon. Payments for Ecosystem Services (PES) provide a way to promote the complementary advantages and benefits equilibrium between ES supplier and beneficiary. At present, PES is mainly based on the tradeoff between the profit and loss of ecological conservation. The quantifying of PES mainly uses the opportunity cost of ES supplier and follows the principle of additionality, which neglects the benefits that arise from the basic (contrast to additional) ES experienced by ES beneficiary and ignores the rights and interests of ES supplier who supplies the basic ES. To resolve this problem, we proposed that we should set the value of ES experienced by ES beneficiary as the quantitative indicator of PES. Here, we introduced a new indicator (optional capacity value, OCV) to implement this idea. The ES OCV indicates the optional capacity of supporting the total value produced by human being’s economic and social activities provided by the total volume of an ES. In this paper, we calculated the ES OCV of water provision in Zhujiang River Basin (Pearl River Basin), China. Then, we discussed three scenarios of quantifying PES, based on the principles of (1) interests sharing and responsibilities bearing and (2) equal pay for equal work. The results showed that the ES OCV could describe the conditions that water resources in a hydrologic unit not only provide benefits to the hydrologic unit itself, but also provide benefits to downstream hydrologic units, and then could be a quantitative indicator for PES. This research provides a new PES scheme which would promote the coordinated development and ecological conservation among the regions with mismatch between ES supply and demand.

scholarly journals Analysis of the uncertainty in the monetary valuation of ecosystem services — A case study at the river basin scale

2016 ◽  
Vol 543 ◽  
pp. 683-690 ◽  
Author(s):  
Laurie Boithias ◽  
Marta Terrado ◽  
Lluís Corominas ◽  
Guy Ziv ◽  
Vikas Kumar ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
River Basin ◽  
River Basin Scale ◽  
Monetary Valuation ◽  
Basin Scale ◽  
Valuation Of Ecosystem Services

scholarly journals Linking Conservation, Community Knowledge, and Adaptation to Extreme Climatic Events: A Case Study in Gorongosa National Park, Mozambique

2021 ◽  
Vol 13 (11) ◽  
pp. 6478
Author(s):  
Amemarlita Matos ◽  
Laura Barraza ◽  
Isabel Ruiz-Mallén
Keyword(s):  
National Park ◽  
Animal Species ◽  
Human Life ◽  
Management Strategies ◽  
Forest Products ◽  
Buffer Zone ◽  
Structured Interviews ◽  
Extreme Climatic Events ◽  
Water Provision

This study is based on ethnographic research that analyzes how traditional knowledge and local beliefs on biodiversity conservation relates to the local ability to adapt and be resilient to climatic changes in two communities around Gorongosa National Park, Mozambique: Nhanfisse in the buffer zone and Muanandimae in the core area. A total of 78 semi-structured interviews with heads of households were conducted. We found that both communities carried out practices and held beliefs associated with conservation, such as protecting trees and animal species considered sacred or perceived as beneficial for human life in terms of water provision and agricultural production. In addition to traditional ceremonies that respond to extreme climatic events such as drought and flood, other adaptation strategies used by the communities include moving to neighboring areas in search of better living conditions and using forest products in times of scarcity. We discuss that the management of the park should be agreed on, in a shared way, between local communities and conservation agents to ensure that these areas continue to perform the ecological, subsistence, and spiritual functions required. Our research results contribute to a better understanding of local adaptation dynamics towards extreme climatic events and improvement of management strategies.

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