By taking different types of shelterbelt (Populus simonii forest, Pinus tabulaeformis Carr. forest and Pinus tabulaeformis Carr. × Populus simonii forest) as research objects, adopting sample site survey and semi-fixed observation methods, and by comparing with Caragana forest, grassland and farmland, this paper explores the characteristics of wind erosion and the diffusion law of PM₁, PM_2.5 and PM₁₀ caused by wind erosion, so as to quantify the relationship between wind erosion inhibition rate and particulate matter reduction rate of shelterbelt. The results show that Caragana forest and grassland have better ability to inhibit soil sand formation. Populus simonii forest, Pinus tabulaeformis Carr. forest and Pinus tabulaeformis Carr. × Populus simonii forest have significant effects on arresting particulate matter. The concentration of PM₁₀ increases first and then decreases in Pinus tabulaeformis Carr. forest and Populus simonii forest, but decreases slowly in Pinus tabulaeformis Carr. × Populus simonii forest. There is a nonlinear relationship between wind erosion inhibition rate and particulate matter reduction rate of shelterbelts with different vegetation types, and the fitting relationship between them is the best in Pinus tabulaeformis Carr. forest. Different vegetation types have different functions in inhibiting soil wind erosion and arresting particulate matter, among which Pinus tabulaeformis Carr. forest has the best comprehensive protection.

以不同类型的防护林(小叶杨纯林、油松纯林、小叶杨–油松混交林)为研究对象, 采用样地调查与半固定观测方法, 以柠条林、草地和农田为对照, 探究风蚀特征及风蚀引起的PM₁, PM_2.5和PM₁₀扩散规律, 从而量化防护林的风蚀抑制率和颗粒物削减率。结果表明, 柠条林和草地抑制土壤起沙能力较强; 小叶杨林、油松林和混交林对颗粒物的阻滞作用显著, PM₁₀浓度在油松林和小叶杨林内呈先升高后降低的趋势, 在混交林内降低缓慢; 不同植被类型防护林的风蚀抑制率与颗粒物削减率之间呈非线性关系, 油松林对两者的拟合关系最佳; 不同植被类型的防护林抑制土壤风蚀和阻滞颗粒物的功能有差异, 油松林的综合防护作用最佳。