Secondly, the dissertation studies the PSR mechanism of cultivated land conservation in deep.

其次，对耕地保护的PS R机理进行了深入的研究。

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This paper analyzes the problem of cultivated land conservation from the view of market failure.

本文从市场失灵的角度来分析耕地保护问题。

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This dissertation carries on theory and positive research of the PSR mechanism on cultivated land conservation.

本文对耕地保护的PS R机理进行理论与实证研究。

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These billionaires operate on a wide spectrum when it comes to land conservation.

FORBES: Hedge Fund Giant Louis Bacon's Bold Mission To Save The American West

He said the new measurement would mean "new obligations" for the park authority from a land conservation and management perspective.

BBC: New height makes Snowdonia peak 'super mountain'

The event aims to identify key synergies across different policy agendas which relate to wild land conservation and restoration and identify associated future opportunities for wild landscapes.

UNESCO: Scotland��s Wild Landscapes Conference