基于多重指标的气候品质量化评价——以河西东部红枸杞为例

Quantitative Evaluation of Climate Quality Based on Multiple Indicators: A Case Study on Lycium chinense Growth in East Hexi Corridor

量化评价方法是科学评价农产品气候品质优劣的关键所在,利用熵权赋值法和模糊综合评判方法,构建基于多重耦合指标体系的气候品质量化评价模型。以河西走廊东部红枸杞为例,将生长时段内光、温、水等指标作为评价依据,建立适宜条件评价模型;将主要气象灾害阈值指标分级度量,建立极端灾害影响评价模型,实现了基于气象评价和产地评价的气候品质综合评价模型。经业务验证,该方法可以作为枸杞气候品质定量评价的依据。同时,为类似农产品气候品质量化评估提供了参考。

Quantitative evaluation method is the key to scientifically evaluate the climate quality of agricultural products.Based on the multiple coupling index system,in this paper a quantitative evaluation model of climate quality was established by using the entropy weight valuation method and fuzzy comprehensive evaluation method.The indicators of sunshine,temperature,water,etc.during the growth period of Lycium chinense in east Hexi Corridor were used to evaluate the suitable and extreme disastrous meteorological conditions.The evaluation model of extreme disaster impact was established by grading the main meteorological disaster threshold indexes.The comprehensive evaluation model of climate quality was established by combining the meteorological evaluation and production area evaluation.This method could be used as the basis of quantitatively evaluating the climate quality for L.chinense growth.At the same time,this method could also provide a reference for the quantitative assessment of climatic quality for the growth of similar agricultural products.