Farm practices for food safety: an emerging threat to floodplain and riparian ecosystems
Farm practices for food safety: an emerging threat to floodplain and riparian ecosystems
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DOI：
10.1890/120243
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发表时间：
2013-06-01
影响因子：
10.3
通讯作者：
Morrison, Scott A.
中科院分区：
文献类型：
--
作者：
Gennet, Sasha;Howard, Jeanette;Morrison, Scott A.
洪泛区和河岸生态系统因其生物多样性保护价值以及广泛转变为农业而值得注意。最近的证据表明，由于新的威胁：旨在促进食品安全的农场做法，剩余栖息地的转变可能正在加速。在全国范围内，美国水果和蔬菜种植者报告说，他们受到商业农产品买家的压力，要求他们采取不利于野生动物和栖息地保护的土地使用做法，这是一种在科学上值得怀疑的降低食源性疾病风险的尝试。我们测量了其中一些做法对加利福尼亚州主要农产品种植区的影响程度。在该地区广泛种植的菠菜中爆发有毒大肠杆菌后的 5 年里，13.3% 的剩余河岸栖息地被消灭或退化。如果这些做法在全州范围内针对所有作物实施，某些县高达 40% 的河岸栖息地和 45% 的湿地将受到影响。这项研究强调了通过使用基于证据的适应性管理方法来管理农场对于食品安全和生态健康的重要性。持续的生物多样性丧失和全球粮食供应一体化使得这些发现无论在哪里种植农产品都具有重要意义。
Floodplain and riparian ecosystems are noteworthy for their biodiversity conservation value as well as for their widespread conversion to agriculture. Recent evidence indicates that the conversion of remaining habitat may be accelerating because of a new threat: on-farm practices meant to promote food safety. Nationwide, US fruit and vegetable farmers report being pressured by commercial produce buyers to engage in land-use practices that are not conducive to wildlife and habitat conservation, in a scientifically questionable attempt to reduce food-borne illness risk. We measured the extent of impacts from some of these practices in a leading produce-growing region of California. Over a 5-year period following an outbreak of toxic Escherichia coli from spinach, a crop grown extensively in the region, 13.3% of remaining riparian habitat was eliminated or degraded. If these practices were implemented statewide, across all crops, up to 40% of riparian habitat and 45% of wetlands in some counties would be affected. This study highlights the importance of managing farms for both food safety and ecological health through the use of an evidence-based, adaptive management approach. Ongoing biodiversity loss and global integration of the food supply make these findings relevant wherever produce is grown.