Influence of Climate and Economic Variables on the Aggregated Supply of a Wild Edible Fungi (Lactarius deliciosus)

Forests

Oscar Alfranca²  Roberto Voces¹  Luis Diaz-Balteiro¹ 

[1] Department of Forestry Economics and Management, Technical University of Madrid, ETS Ingenieros de Montes, Ciudad Universitaria s/n. 28040 Madrid, Spain; E-Mail:;Department of Agribusiness Engineering and Biotechnology, Technical University of Catalunya, Building D4-C, Esteve Terradas, 8, 08860 Castelldefels, Spain; E-Mail:

关键词: edible fungi;    Lactarius deliciosus;    rainfall;    temperature;    mushroom price;    causality;   

DOI  :  10.3390/f6072324

来源: mdpi

【 摘 要 】

A mycological supply function of wild edible fungi is determined by a set of forest and economic variables, among which climate variables stand out. Focusing on wild mushroom picking with commercial value (Lactarius deliciosus (L.) Gray) as an example, the main objective of this paper is to obtain empirical evidence about the impact of meteorological and economic variables on the mushroom supply. A multidisciplinary vector error correction (VEC) model for mushroom supply is estimated. Coefficients for the Error Correction Term (ECT) are all significant, at the 0.01 significance level, both in the model for prices and for collected mushrooms. The value of the ECT coefficient in the equation for prices is −0.086 (t-value: −9.321), and for the collected mushroom equation is 0.499 (t-value: 3.913). The impact of precipitation on price changes is −0.104 (t-value: −1.66), and the impact of temperature on mushroom harvest picking is 0.605 (t-value: 3.07). We find that including climate factors to explain mushroom supply considerably strengthens the explanatory power of the model, and in some cases greatly changes the results.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.