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L'adoption de la déclaration de Kunming contribuera à établir un plan directeur pour la conservation de la biodiversité mondiale au cours des dix prochaines années et encouragera les pays à prendre des mesures concrètes., “昆明宣言”的通过有助于绘制未来10年全球生物多样性保护的蓝图，鼓励各国采取具体行动

International audience

International audience

A better understanding of root-soil mechanical interaction is necessary for investigating the capability of structural roots to provide an efficient anchorage of root or to participate to soil against landslides and soil erosion. This paper aims in analysing the contribution of different root elements and soil types to root anchorage. For this purpose, a 2D finite element model of root anchorage has been built up and applied to twelve different herringbone-like root patterns. These root patterns have been defined variying the angle between lateral root and main root, and removing different root parts. Bending tests has been performed in both clay and sandy soil. Numerical results showed that shallow lateral roots play a significant role in root anchorage, contributing nearly 35 % - 40% to root-soil strength in the whole simulations. Moreover, it was shown that root architecture and soil type can significantly modify the hinge of root plate rotation axis.