Soil sampling device for forest ecosystem

The invention relates to a soil sampling device for a forest ecosystem. The soil sampling device comprises a connecting pedal, a connecting rod, a handle and a plurality of sleeve sampling assemblies, the connecting rod is arranged at the top of the connecting pedal, and the handle is fixed at the top of the connecting rod; the plurality of sleeve sampling assemblies are respectively and vertically arranged at the bottom of the connecting pedal, each sleeve sampling assembly comprises an outer sleeve, an inner sleeve and a soil drilling blade, the top of the outer sleeve is fixed on the connecting pedal, the inner sleeve is in threaded connection with the inner wall of the outer sleeve, and the soil drilling blade is in threaded connection with the outer sleeve. The soil auger blade is fixed to the edge of the bottom of the inner sleeve. According to the soil sampling device for the forest ecosystem, the multiple sleeve sampling assemblies can be adopted for multi-point soil sampling, the sampling depth of ea