Soil macroarthropods are organisms considered as key factors to sustain soil quality and sustainability due to their services to soil ecosystem. The community structure and seasonal variation of soil macroarthropods in 5-year cultivation of green manure plant species in the Brazilian semi-arid, Areia, Paraiba, Brazil were investigated between June and December 2018. Soil samples and macroarthropod specimens were collected using soil cores and Provid-type traps, respectively, during rainy and dry seasons. We characterized both soil chemical properties and macroarthropod community under ten green manure plant species: Brachiaria decumbens Stapf. cv. Basilisk, Canavalia ensiformis (L.) DC, Crotalaria juncea L., Crotalaria ochroleuca G. Don, Crotalaria spectabilis Roth, Lablab purpureus (L.) Sweet, Mucuna pruriens (L.) DC., Neonotonia wightii (Wight & Arn.) J.A. Lackey, Pennisetum glaucum L., and Stilozobium aterrimum Piper & Tracy. The highest values of richness, diversity and dominance in the macroarthropod community during the rainy season were found on the plots where C. spectabilis and M. pruriens were cultivated, whereas during the dry season the highest values were found in the plots where C. ochroleuca, C. spectabilis, and S. aterrimum were cultivated. In the plots where B. decumbens and P. glaucum where cultivated, we found lower values of richness, diversity, and dominance in the macroarthropod community compared to the leguminous plant species during rainy and dry seasons. Our findings suggest that: 1) green manure practice and seasonality changed soil macroarthropod community, trophic structure, and ecological processes in semi-arid conditions; and 2) abundance of predators, ecosystem engineers, decomposers and herbivores was promoted by plant species from Fabaceae family. The results highlight the importance to consider plant species from Fabaceae family as habitat and food resources for soil fauna community.

由于土壤节肢动物为土壤生态系统提供服务，因此它们被视为维持土壤质量和可持续性的关键因素。在2018年6月至12月之间，对巴西半干旱，阿雷亚，帕拉伊巴，巴西的5年绿色肥料植物栽培中土壤大型节肢动物的群落结构和季节性变化进行了研究。使用土壤核心和土壤样本收集了土壤样品和大型节肢动物标本。在雨季和旱季分别提供普通陷阱。我们表征了十种绿色肥料植物物种：Bracharia decumbens Stapf下的土壤化学性质和节肢动物群落。简历。蛇怪，Canavalia ensiformis（L.）DC，猪屎豆，猪屎豆G. Don，猪屎豆属Roth，紫苏（L.）甜，Mucuna pruriens（L.）DC。，Neonotonia wightii（Wight和Arn。）JA Lackey，Pennisetum glaucum L.和Stilozobium aterrimum Piper＆Tracy。对其中情节被发现在macroarthropod社会的丰富性，多样性和优势的雨季期间的最高值C.壮观和M. pruriens培养，而在旱季的田块中发现的最高值，其中C. ochroleuca，C. spectabilis和S. aterrimum被培养。在地块里B. decumbens和P. glaucum种植后，在雨季和干旱季节，与豆科植物相比，在节肢动物群落中的丰富度，多样性和优势度较低。我们的发现表明：1）在半干旱条件下，绿色肥料的使用和季节性改变了土壤节肢动物的群落，营养结构和生态过程；2）豆科的植物种类促进了捕食者，生态系统工程师，分解者和草食动物的大量繁殖。结果突出了将豆科植物的物种视为土壤动物群落的栖息地和食物资源的重要性。