Fig. 10

Principal Component Analysis (PCA) of the influence of agricultural environmental factors on microplastic abundance (a and b). LP, MA, CL, VE, DI, NI, SI, FI, CH, SA, LO, TO, and PO represent mulching years, microplastic abundance, clay, vegetables, drip irrigation, non- irrigation, sprinkler irrigation, furrow irrigation, chili, sandy soil, loamy soil, tobacco, and potato, respectively.