摘要
【目的】分析广西稻田生态系统服务价值(经济文化和生态服务价值)的变化情况,为解决广西稻田生态环境污染问题提供参考依据。【方法】以2011—2020年广西稻田生态系统服务价值为研究对象,采用市场价值法、替代成本法和成果参照法等方法评估其服务价值变化趋势与时空演变特征。【结果】2011—2020年广西稻田生态系统服务价值总量从488.52亿元上升至568.17亿元,呈先升高后降低再升高的变化趋势,总体上提高16.30%。其中,经济文化价值变化趋势与服务价值总量变化趋势基本一致,从256.48亿元上升至284.08亿元,上升10.76%;生态净价值在2011—2012年增幅较大,从232.04亿元上升至最大值306.54亿元,增长32.11%,随后基本保持稳定,均值为277.57亿元。2011—2019年广西稻田生态系统服务价值总量在桂北地区的空间分布格局基本保持不变,在桂南地区由东南边界城市玉林市转移至中心城市南宁市,形成了以南宁市为中心向四周递减的阶梯状分布格局。2019年广西稻田生态系统6项正面和2项负面生态服务价值均主要分布在桂南和桂北地区。【结论】2011—2020年广西稻田生态系统服务价值总量变化不明显,但总体上呈先升高后降低再升高的变化趋势;服务价值总量的空间分布格局基本上保持南高北低态势,其中心在桂南地区的城市间转移;正面和负面生态服务价值形成了南北高、东西低的空间分布格局。
【Objective】The study aimed to analyze how paddy field ecosystem service value(economic and cultural value, ecological value) in Guangxi changed, so as to provide reference for solving the problem of ecological pollution in paddy fields.【Method】Paddy field ecosystem service value in Guangxi from 2011 to 2020 was taken as research objects and its changes and spatial-temporal evolution characteristics were evaluated by market value method, alternative cost method, and outcome reference method, etc.【Result】From 2011 to 2020,the total value of paddy field ecosystem services in Guangxi increased from 48.852 billion yuan to 56.817 billion yuan, with an increase of 16.30%,showing a trend of first increasing, then decreasing and increasing at last. The changing trend of economic and cultural value was consistent with that of total service value, rising from 25.648 billion yuan to 28.408 billion yuan, with an increase of 10.76%. From 2011 to 2012,the net ecological value increased significantly, rising from 23.204 billion yuan to 30.654 billion yuan, with an increase of 32.11%. From 2013 to 2020,it remained stable, with an average value of 27.757 billion yuan. From 2011 to 2019,the spatial distribution pattern of total service value in the northern part of Guangxi remained unchanged. In the southern part of Guangxi, the center of total service value shifted from Yulin to Nanning, forming a step-like distribution pattern with Nanning as the center and decreasing in all directions. In 2019,six positive and two negative ecological service values of the paddy field ecosystem in Guangxi were mainly distributed in the southern and northern regions.【Conclusion】The total value of paddy field ecosystem services in Guangxi did not change obviously but increased firstly, then decreased and increased at last. The spatial distribution pattern of total service value was high service value in the south and low in the north, and its center shifted between cities in the south. Besides, the positive and negative ecological service values formed a spatial distribution pattern of high in the north and south, and low in the east and west.
作者
蒋琳莉
黄好钦
何苏榕
熊娜
望飞勇
JIANG Lin-li;HUANG Hao-qin;HE Su-rong;XIONG Na;WANG Fei-yong(School of Economics and Management,Wuyi University,Jiangmen,Guangdong 529020,China;School of Management,Guangxi Minzu University,Nanning 530006,China;Horticulture Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China)
出处
《西南农业学报》
CSCD
北大核心
2022年第11期2633-2640,共8页
Southwest China Journal of Agricultural Sciences
基金
国家自然基金项目(72003051)
教育部人文社科研究青年基金项目(19YJC790048)
国家民委民族研究项目(2020-GMD-032)
广西高校中青年教师科研基础能力提升项目(2019KY0167)
广西农业科学院基本科研业务专项[201007(基)]。
关键词
稻田生态系统
服务价值
时空演变
广西
Paddy field ecosystem
Service value
Spatial-temporal evolution
Guangxi
