Based on the low-carbon and high-value methodology of chemical ecology and chemical informatics, combining theory and methods, taking saving, environmental protection, low carbon, high production, high value and circulation as values and aims, the relationship between human and land as the basis, ecosystem as a center, overall control as a goal and agricultural ecological engineering as a mean, environmental pollution detection, as one of bottlenecks for agricultural products and food security, should be solved firstly; through the field survey in dry years from 2009 to 2010 when drought and flood were frequent and the frequency of drought was higher than that of flood, plus the determination of surface water flow and water quantity in a small typical river basin, the correlation of local water, soil and gas in the county could be found, and the transfer of monitoring focus from water environment to atmospheric environment was possible and necessary. The study promoted the quantitative research on the correlation among water, soil and gas, and the results were in accordance with the conclusions of related studies.%基于化学生态学及化学信息学的低碳高值化方法学,坚持理论与方法相结合,以节约、环保、低碳、高产、高值、循环为价值理念与旨归,以人地关系为基础,以生态系统为中心,以整体调控为目标,以农业生态工程为手段,首先致力于破解农产品与粮食安全问题的瓶颈之一——环境污染监测；通过近两年(2009～2010年)旱涝频发、以旱为主的枯水年份的实地调查,以及典型小流域地表水流量监测与水质测定,发现县域局地水、土、气数据的相关性以及监测重点由水环境转移到大气环境的可能性与必要性.该研究推进了水、土、气数据相关性的定量研究,其阶段性成果与相关研究的结论相符合.
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