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Greenhouse gases as clues to permanence of farmlands

机译：温室气体可以作为农田永久性的线索

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Farmlands are expansive, diverse, and intensively managed ecosystems. These lands, so critical to human welfare, are threatened by growing stresses as demand for food escalates, fresh water wanes, cheap fuels deplete, and other uses jostle for space. With these coming pressures; how can we foster permanence on the lands that sustain us? In this essay I contemplate the hypothesis that the greenhouse gases, because they emanate from the interwoven flows of C, N, and energy in ecosystems, can help steer us toward permanence (sustainability). Alongside other indicators these emissions may detect the ecosystem's pulse, alerting us to inefficiencies and guiding us to better practices. To be effective signals, however, the greenhouse gases will need to be considered in their local settings, monitored longer and in more "listening places, " and measured across boundaries of disciplines and biomes. This approach may help reduce greenhouse gas emissions from our farmlands. But we may find that, in the long run, the main beneficiaries of our inquiry have been, not just the atmosphere, but our fragile lands, perhaps in ways we cannot yet foresee.
机译：农田是广阔，多样化和集约化管理的生态系统。这些对人类福利至关重要的土地正面临着越来越大的压力，因为人们对食物的需求不断增加，淡水减少，廉价燃料枯竭以及其他用途挤占了太空。随着这些压力的到来;我们如何才能在维持我们生存的土地上实现持久性？在本文中，我考虑了一个假设，即温室气体是由于它们来自碳，氮和生态系统中能量的交织流动而产生的，它可以帮助我们迈向持久性（可持续性）。除其他指标外，这些排放物还可检测生态系统的脉动，提醒我们效率低下，并指导我们采取更好的措施。但是，要想成为有效的信号，就需要在当地环境中考虑温室气体，对温室气体进行更长时间和更“监听”的监测，并跨学科和生物群落范围进行测量。这种方法可能有助于减少我们农田的温室气体排放。但是，从长远来看，我们可能会发现，我们调查的主要受益者不仅是大气，还包括我们脆弱的土地，也许以我们尚无法预见的方式。

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