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一个崭新的研究视角:农业生产可持续性对气候变化响应的定量评价 被引量:1

The quantitative evaluation on the reflection of climate change upon agricultural production sustainability:a new researching angle of view
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摘要 气候条件及其变化是构成地理环境诸要素的最敏感、最活跃的因子,对人类农业生产的发展影响也最为明显。然而,气候变化体现在时间和空间两个尺度上。在时间尺度上,气候变化是同一个地区的不同历史时期的气候特征;在空间尺度上,气候变化是不同地区的同一个历史时期的气候特征。不同的连接区域的气候构成的气候变化序列可以替代同一个区域的历史时期的气候变化序列,因为它们的变化都是连续的。基于此思想,选择气候条件明显不同的两个区域(分别用我国南方的和北方的两个省代替),分别模拟不同的气候条件利用现代的统计数据,构建农业生产可持续性评价指标,利用主成分分析和多元回归等定量方法,并通过对数据进行处理,剔除耕地面积减少、土地利用、管理、地形特征等诸多因素的影响,以定量研究探讨气候变化(可能是渐变或跳跃性的突变转型)对农业生产可持续性的影响。研究表明:当气候条件转好时,自然环境条件对农业生产的作用减小;农业社会和农业产出状况对农业生产的作用也减小;人们会有选择地耕种农业劳动生产率水平相对较高的土地。当气候条件变差时,自然环境条件对农业生产的限制作用增强;农业产出和农业社会状况对农业生产发展的作用增大;人们更多关注农业人均产出水平和农村社会生产状况,对农业劳动生产率状况的关注严重减少。 We selected two regions (Hubei and shangxi province) which represented different climate environment, utilized modern statistic data, Principal Component Analysis and multivariate linear regression to quantitatively evaluate the influence of climate change upon agricultural production through isolating climate environment from plowland area, land utilization and management and landform and so on. The study indicated that when environmental condition turned good, the function of environmental condition decreased; the function of agricultural society and production decreased, too; people could select the land to cultivate of which agricultural productivity is higher. That when environmental condition turned bad, the function of environmental condition increased ; the function of agricultural society and production increased, too; people could not put emphasis on the land which agricultural productivity is higher, whereas focused on per capita.
出处 《干旱区资源与环境》 CSSCI CSCD 北大核心 2010年第3期58-63,共6页 Journal of Arid Land Resources and Environment
基金 国家自然科学基金重点项目(项目编号:40531004) 中国地质大学生物地质与环境地质教育部重点实验室(Key Laboratory of Biogeologyand Environmental Geology of Ministry of Education(China University of Geosciences),Wuhan 430074,China)“课题编号:BGEG0816” 中国地质大学(武汉)湖北省地球表层系统重点实验室基金(2007) 中国地质大学(武汉)地球科学学院理科基地基金资助
关键词 农业可持续性 气候变化 响应 定量评价 agricultural production sustainability climate change response quantitative evaluation
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