﻿ 基于层次分析法的荒漠退化程度评价 Evaluation of the Degree of Desertification Degradation Based on Analytic Hierarchy Process

International Journal of Ecology
Vol.05 No.03(2016), Article ID:18423,8 pages
10.12677/IJE.2016.53006

Evaluation of the Degree of Desertification Degradation Based on Analytic Hierarchy Process

Jing Ren

The Institute of Statistics, Jiangxi University of Finance and Economics, Nanchang Jiangxi

Received: Aug. 10th, 2016; accepted: Aug. 27th, 2016; published: Aug. 30th, 2016

ABSTRACT

In this paper, we study the degree of desertification degradation in three ways. This paper is based on Inner Mongolia Chinese mathematical data. The desert ecological degradation is analyzed. Firstly, we determine the assessment of degradation degree index system and hierarchical structure of the index system, which is divided into animal communities and plant communities. Secondly, we determine the index system by using the principal component analysis method. After establishing the evaluation index system, according to ecological degradation index formula, we standardize the initial data of the main indexes for the index system and calculate the weight of evaluation index on the final ecological degradation index by using the analytic hierarchy process. Finally, all degraded degrees in the form of interference are obtained through the core formula. In the end, rotational grazing compared to over grazing and reclamation of ecological degradation is not a particularly big impact. If in this form of grazing, it will improve the ecological environment of the desert.

Keywords:Ecological Degradation Index, Analytic Hierarchy Process, Principal Component Analysis, Weight Value

1. 引言

2. 层次分析法

2.1. 基本原理

2.2. 步骤和方法

3. 荒漠生态系统退化评价体系

3.1. 生态系统退化评价指标建立的原则 [5]

1) 综合性：要求所选的指标可以体现这复杂生态系统的全面情况。

2) 代表性：要求所选的指标能体现生态系统的主要特征。

3) 灵敏性：要求所选的指标能够对生态退化的程度作出灵敏的反应。

4) 层次性：要求所选的指标具有明确的分级。

5) 实用性：要求所选的指标是能够实际测量的，方便操作得到的。

3.2. 确定评价指标

3.2.1. 初步确定生态退化评价指标

3.2.2. 评价指标的筛选

3.2.3. 评价指标的最终确定

4. 荒漠生态系统退化评价模型的建立

4.1. 评价指标数据的标准化

1) 随着退化程度剧化，指标值减小时：

(1)

Table 1. Index structure of ecosystem degradation assessment system

Table 2. Evaluation index of three kinds of forms

2) 随着退化程度剧化，指标值增大时：

(2)

4.2. 指标权重值的确定

4.3. 综合退化评价模型

Table 3. The relationship between the evaluation indexes and the degree of degradation

Table 4. Weight value of evaluation index to comprehensive index in different ways

(3)

5. 退化评价等级与标准的确定

6. 模型的数据验证与结果

7. 结果讨论

8. 放牧方式改善问题的分析

Table 6. Degree of ecological degradation of desert

Table 7. Quantitative distribution of the degree of ecological degradation in desert

Table 8. Mean table of degradation in pastoral areas

Table 9. Mean table of degradation grazing area

Table 10. Mean table of degradation in pastoral areas

9. 结语

Evaluation of the Degree of Desertification Degradation Based on Analytic Hierarchy Process[J]. 世界生态学, 2016, 05(03): 49-56. http://dx.doi.org/10.12677/IJE.2016.53006

1. 1. 申志东. 运用层次分析法构建国有企业绩效评价体系[J]. 审计研究, 2013(2): 106-112.

2. 2. 王小云, 蓝少华. 档案信息质量评价之指标权重分析及运用——基于层次分析法[J]. 档案学通讯, 2010(1): 41- 45.

3. 3. 付爱红, 陈亚宁, 李卫红. 基于层次分析法的塔里木河流域生态系统健康评价[J]. 资源科学, 2009(9): 1535-1544.

4. 4. 李艳利, 李东艳, 李艳粉. 层次分析法与模糊综合评价法在城市生态系统健康评价中的应用[J]. 广州环境科学, 2009(3): 39-44.

5. 5. 章家恩, 徐琪. 退化生态系统的诊断特征及其评价指标体系[J]. 长江流域资源与环境, 1999(2): 215-220.

6. 6. 杨娟, 李静, 宋永昌, 蔡永立. 受损常绿阔叶林生态系统退化评价指标体系和模型[J]. 生态学报, 2006(11): 3749- 3756.

7. 7. 潘多锋. 三江源区“黑土型”退化草地的类型及等级划分标准研究[D]: [硕士学位论文]. 兰州: 甘肃农业大学, 2007.

8. 8. 耿涌, 王珺. 基于灰色层次分析法的城市复合产业生态系统综合评价[J]. 中国人口, 资源与环境, 2010(1): 112- 117.