71
• Zhi-Hong Zheng* • Yan-Xu Yu •
North China University of Water Resources and Electric Power
*Corresponding author
Abstract
Zheng, Z. H., & Yu, Y. X. (March-April, 2017). Improvement
of the vertical “scatter degree” method and its application
in evaluating water environmental carrying capacity.
Water
Technology and Sciences
(in Spanish), 8(2), 71-76.
The “scatter degree” method is an objective evaluation
method based on a “difference drive*”. However, it is
currently perceived as incapable of properly reflecting the
subjective information of the evaluator. In order to reflect
the objective law of raw data and assist decision-makers to
control major factors of the water environmental carrying
capacity (WECC), this paper proposes a method to process
the weight of the indicator by combining the analytic
hierarchy process (AHP) and the vertical “scatter degree”
method. The computing results of this improved method are
virtually identical to those of the old method, but the former
is more scientific and reliable.
Keywords:
Water environmental carrying capacity; analytic
hierarchy process; processing weight; improved vertical
“scatter degree” method.
ISSN 2007-2422
•
Tecnología y Ciencias del Agua
, vol. VIII, núm. 2, marzo-abril de 2017, pp. 71-76
Resumen
Zheng, Z. H., & Yu, Y. X.
(marzo-abril, 2017). Mejoramiento
del método de “grado de dispersión” vertical y su aplicación en la
evaluación de la capacidad de carga ecológica del agua.
Tecnología
y Ciencias del Agua
,
8
(2), 71-76.
El “grado de dispersión” vertical es un método de evaluación
objetiva; sin embargo, actualmente se percibe como incapaz de reflejar
de forma adecuada la información subjetiva del evaluador. Con el fin
de reflejar la ley objetiva de datos brutos y ayudar a los tomadores
de decisiones a controlar los principales factores de la capacidad de
carga ecológica del agua (WECC), este trabajo propone un método
para procesar la ponderación del indicador, al combinar el proceso
de jerarquía analítica (AHP) y el método de “grado de dispersión”
vertical. Los resultados de este método mejorado son prácticamente
idénticos a los obtenidos con el antiguo método, pero el primero es
más científico y confiable.
Palabras clave
: capacidad de carga ecológica del agua, proceso de
jerarquía analítica, ponderación, método de “grado de dispersión”
vertical mejorado.
Received: 28/04/2016
Approved: 22/09/2016
Improvement of the ver t ical “scatter degree” method
and i ts appl icat ion in evaluat ing water
env ironmental carr y ing capaci ty
Introduction
Water is the primary nature resource for human
survival and social development. The water en-
vironment is the synthesis of water bodies, and
it is closely related to various kinds of natural
factors and social factors. WECC (Water Envi-
ronmental Carrying Capacity) is based on the
relationship between sustainable development
and water environment, and its size determines
the scale and speed of development of human
society. Many scholars, both domestic and over-
seas, have researched WECC and its significance
to humans (Long & Jiang, 2003). Various methods
have been used for its evaluation, such as the
system dynamics model (Han, 2005), the vector
norm method (Huang & Song, 2013), the fuzzy
comprehensive evaluation method (Fang, 2014),
the multi-objective model (Wang, Zhou, & Yu,
2015), the artificial neural network model (Wang,
Sun, Li, & Hou, 2007), the radial basis function
(RBF) artificial neural network model (Hu, Xu,
Xu, & Fu, 2015), and the catastrophe progression
method (Wu, Wang, Cao, Wang, & Zhao, 2015),
and so on. The evaluation of the water environ-
mental carrying capacity involves hydrology in
