Agro-ecological compensation of watershed based on emergy

被引：14
|
作者：
Fu, Yicheng [1 ]
Du, Xia [2 ]
Ruan, Benqing [2 ]
Liu, Laisheng [2 ]
Zhang, Jian [2 ]
机构：
[1] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat River Basin Water, A-1 Fuxing Rd, Beijing 100038, Peoples R China
[2] China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China
来源：
WATER SCIENCE AND TECHNOLOGY | 2017年 / 76卷 / 10期
基金：
中国国家自然科学基金;
关键词：
agricultural production; agro-eco-compensation; emergy; Yongding River Basin; YONGDING RIVER-BASIN; PRODUCTION SYSTEM; ECOSYSTEM SERVICES; EMBODIED ENERGY; SUSTAINABILITY; BIOGAS; TRANSFORMITY; FOOTPRINT; EVALUATE; INDEXES;
D O I：
10.2166/wst.2017.455
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The paper aims at providing a framework to calculate the agro-eco-compensation standard based on the systems agro-ecological concept of embodied energy as emergy. We have proposed a calculation system of eco-compensation standard for sustainable agricultural development based on the convertibility between emergy and price. According to our calculation, the total energy of agricultural production in Yongding River Basin was 3.45 E + 16 Sej/ ha (the unit emergy value, expressed in solar emergy joules per unit) in terms of the renewable resources, nonrenewable resources, material inputs, and service costs. The energy of renewable and nonrenewable resources was 1.59 E + 16 and 1.86E + 16 Sej/ ha, respectively. The ESI (environmental sustainability index) of the study area was 0.1056, indicating that its agricultural production was in a seriously unsustainable condition. To realize the sustainable agricultural production in the watershed, the downstream governments should pay $21.81 M ((sic)135 million) approximately to upstream governments for water and soil conservation. The results of the present study suggested that the emergy-based calculation method of agro-eco-compensation standard is feasible to a certain degree.
引用
收藏
页码：2830 / 2841
页数：12
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