西南三省石漠化治理生态成效与农业发展耦合关系及空间差异  

Coupling relationship and spatial difference between ecological effectiveness of rocky desertification control and agricultural development of three provinces in southwest China

作　　者：冯严 赵筱青[1] 普军伟 周世杰 施馨雨 陈彦君 顾泽贤 李益民 FENG Yan;ZHAO Xiao-qing;PU Jun-wei;ZHOU Shi-jie;SHI Xin-yu;CHEN Yan-jun;CU Ze-xian;LI Yi-min(School of Earth Sciences,Yunnan University,Kunming 650500,China;International Institute of River and Ecological Security,Yun-nan University,Kunming 650500,China;Yunnan Fenglan Project Investment Consulting Group Co.Ltd.,Kunming 650200,China)

机构地区：[1]云南大学地球科学学院,昆明650500 [2]云南大学国际河流与生态安全研究院,昆明650500 [3]云南风蓝项目投资咨询集团有限公司,昆明650200

出　　处：《西南农业学报》2023年第6期1296-1306,共11页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(42061052);云南大学研究生人才培养模式改革计划(CZ22622203-2022-28);云南大学研究生实践创新项目(2021Y029)。

摘　　要：[目的]石漠化是中国西南地区的主要生态问题,一定程度上制约着农业发展。探究石漠化治理生态成效与农业发展的相互关系,对科学调整农业结构,促进石漠化地区可持续发展有重要意义。[方法]选取2005年、2010年和2018年西南三省(云南、贵州、四川)46个州(市)为研究对象,采用综合评价法和耦合协调度模型,分析该区域2005—2018年农业发展水平和石漠化治理生态成效及其耦合协调关系的时空变化趋势,运用空间自相关模型探究二者耦合协调度的空间关联格局。[结果]2005—2018年,云贵川46个州(市)的石漠化治理成效存在持续升高、持续下降、先增后减、先减后增4种变化趋势,在空间上高值集中于蜀中和滇中,低值集中于贵州省,呈西部向东部递减的趋势;农业发展水平呈持续升高、持续减少、先增后减3种发展趋势,空间上高值集中在蜀中,低值主要分布在云南省和贵州省,呈现中部高、四周低的局面。石漠化治理生态成效和农业发展的耦合协调度集中在0.585~0.790,均处于协调阶段。时间上看,曲靖和遵义等11个州(市)的协调程度逐渐好转,昆明等4个州(市)出现微弱的退化,其余的州(市)均未发生变化。在空间上,成都、雅安等蜀中区域和昆明、玉溪等滇中区域的耦合协调度稳定居高,呈中部高、四周低的特点。各州(市)的石漠化治理生态成效和农业发展耦合协调度呈空间正相关,Moran′s I指数先增后减,整体变化从0.315减少到0.218。存在局部相关的州(市)主要分布于滇中、蜀中和黔西区域,包含成都等23个州(市)。[结论]云贵川3省的石漠化治理生态成效和农业发展之间呈现较好的耦合协调关系,但距优质协调仍有一定提升空间,且空间差异较大,不发达地区耦合协调度低且偏远。今后可考虑从政策、资源要素投入等方面来推进各地区协同进步。研究结果可为中国南方石漠�[Objective]Rocky desertification was a major ecological problem in southwest China,which restricted agricultural development.Exploring the relationship between the ecological effect of rocky desertification control measures and agricultural development was of great significance for adjusting agricultural structure scientifically and promoting sustainable development of rocky desertification areas.[Method]The study selected 46 prefectures(cities)in Yunnan,Guizhou and Sichuan in southwest China in 2005,2010 and 2018 as the research objects.Comprehensive Evaluation method and Coupling Coordination Degree model were used to analyze the spatial and temporal variation of agricultural development levels and the effect of ecological remediation of rock desertification in the investigated regions in the past 13 years.The spatial autocorrelation model was used to explore the spatial correlation pattern of their coupling coordination degree.[Result]From 2005 to 2018,the remediation effect of rocky desertification in 46 prefectures(cities)of Yunnan,Guizhou and Sichuan provinces showed four patterns:Continuous increase,continuous decline,first increase and then decrease,first decrease and then increase.The high values were concentrated in the central parts of Sichuan and Yunnan,and the low values were concentrated in Guizhou province,showing a decreasing pattern from west to east;The agricultural development levels showed that three development patterns:Continuous increase,continuous decrease,first increase and then decrease.Spatially,the high values were concentrated in the middle of Sichuan province,while the low values were mainly distributed in Yunnan and Guizhou provinces,showing the situation of high in the middle and low in the periphery.The coupling coordination degree between the ecological remediation effect of rocky desertification control and agricultural development were between 0.585 and 0.790,both of which were in the coordination stage.In terms of temporal changes,the coordination degree of 11 prefectures(citi

关 键 词：石漠化治理 生态成效 农业发展 耦合关系 西南地区 

分 类 号：S181[农业科学—农业基础科学]