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引用本文:陈星霖.广西农业生态脆弱性评价及区划研究[J].中国农业资源与区划,2020,41(3):212~219
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广西农业生态脆弱性评价及区划研究
陈星霖
广西壮族自治区农业区划委员会办公室,南宁530000
摘要:
[目的]随着经济的快速发展,我国各地区都面临着不同程度的农业生态脆弱性,通过研究特殊地形和气候下的农业生态脆弱性,有助于为农业生态环境的综合治理提供参考。[方法]文章以广西为例,通过构建评价指标体系,采用层次分析法和熵权法确定综合权重,通过构建综合评价模型对广西农业生态脆弱性程度进行评价,利用ArcGIS对生态脆弱性进行分级,以期探究广西农业生态脆弱性的空间分布情况。[结果]权重分析结果表明水蚀面积的权重值最高为0134,年平均降水量的权重值为0113,自然环境指标相对于农业生产和经济指标对农业生态脆弱性的影响更大。区划研究结果表明广西农业生态脆弱性区域大致可分为5个区域,分别是桂西峰丛洼地带、桂东山地丘陵地带、桂中低山丘陵地带、桂东北山地、桂南沿海丘陵地带。[结论]广西农业生态环境整体来看较为脆弱,处于轻度和中度脆弱等级,但生态环境问题仍不容忽视。为了改善农业生态脆弱性,政府应实行区域的联合防治,加大对农业生态环境的监督和治理,积极探寻生态、环保的农业发展方式,调整产业结构,改善农业生态环境的状态,促进广西农业的可持续发展。
关键词:  农业生态脆弱性评价指标层次分析法熵权法区划研究
DOI:
分类号:S181; X826
基金项目:国家社科基金“跨界流域生态事件协同治理机制研究”(15BZZ041)
STUDY ON EVALUATION AND REGIONALIZATION OF AGROECOLOGICAL VULNERABILITY IN GUANGXI
Chen Xinglin
Office of Guangxi Agriculture Regional Planning Committee, Nanning, Guangxi 530000, China
Abstract:
With the rapid development of economy, various regions of China are facing different degrees of agricultural ecological vulnerability. Taking Guangxi as an example, the study of agricultural ecological vulnerability under special terrain and climate is carried out. It is helpful to provide reference for the comprehensive management of agricultural ecological environment. In this paper, the evaluation index system was constructed, the comprehensive weight was determined by AHP and entropy weight method, the degree of agricultural ecological vulnerability in Guangxi was evaluated by constructing a comprehensive evaluation model. In order to explore the spatial distribution of agricultural ecological vulnerability in Guangxi, the ecological vulnerability was classified by ArcGIS. The results of weight analysis showed that the highest weight value of water erosion area was 0.134, and the weight value of annual average precipitation was 0.113. Compared with agricultural production and economic indicators, natural environment indicators had a greater impact on agricultural ecological vulnerability. The results showed that the region of agricultural ecological fragility in Guangxi could be divided into five parts, namely, the west Guangxi peak cluster depression belt, the eastern Guangxi mountainous hilly area, the middle Guangxi low mountain hilly area, the northeast Guangxi mountain area, the south Guangxi coastal hilly area. The agricultural ecological environment in Guangxi is relatively fragile, which is in the level of mild and moderate vulnerability, but the problem of ecological environment should not be ignored. In order to improve agricultural ecological vulnerability, the government should implement regional joint prevention and control, strengthen the supervision and management of agricultural ecological environment, actively explore the mode of agricultural development of ecology and environmental protection, adjust the industrial structure, and improve the state of agricultural ecological environment, so as to promote the sustainable development of agriculture in Guangxi.
Key words:  agroecological vulnerability  evaluation index  AHP  entropy weight method  regionalization study
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