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For centuries, water buffalo served important livelihood functions for ethnic minority farmers in Southwest China. Yet, over the past decade, buffalo ownership decreased dramatically in our research sites in Yunnan province. This transition occurred after state policies and projects excluded villagers from significant portions of their land. Increased state control over landscapes allowed the state to respatialize land uses in ways conducive to productivist and environmentalist logics, with farmers cultivating cash crops on limited production landscapes and state agencies taking over control of larger environmental landscapes. Buffalo are welcome in neither setting. Handai and Akha farmers have divergent perceptions on the outcomes of these technological shifts, with Handai beginning to question buffalo loss while Akha having contented to become "modern" farmers. In both cases, our analysis challenges the literatures on sustainability transitions and ecological modernization that posit apolitical and optimistic outcomes for farmers' adoption of "modern" and "green" technologies.