Dataset Direct Download Service (WFS): Areas vulnerable to pollution of nitrates of agricultural origin in the PUY DE DOME (Order of 30/08/2021)

Vulnerable zones are all areas that feed into or likely to be affected by nitrate pollution and contribute to the pollution or threat of pollution.

The designation of vulnerable zones shall be based on the nitrate content of fresh waters and the eutrophication status of surface fresh water, estuary waters, coastal and marine waters resulting from the monitoring programme while taking into account the physical and environmental characteristics of waters and land, scientific and technical knowledge and the results of the action programmes.

Certain areas which are considered to be vulnerable may also be designated as vulnerable areas in order to ensure the effectiveness of the measures of the action programmes.

In these areas action programmes entail a series of measures for the farmers concerned:
• The observance of periods of prohibition on the application of nitrogen fertilisers, as of this winter.
• The realisation of an annual manure plan for all the parcels concerned by the zoning.
• Keeping a register of fertilisation practices (spreading book).
• The requirements for the storage of livestock manure.
• The limitation of the amount of nitrogen contained in livestock manure which can be applied annually by each holding.
• Minimum storage capacity required for livestock manure.
• Carrying out at least one soil analysis each year.

脆弱区（Vulnerable Zones）指所有汇入硝酸盐污染物或可能受到硝酸盐污染（nitrate pollution）影响，并会加剧污染或构成污染威胁的区域。
脆弱区的划定应以监测计划测得的淡水硝酸盐浓度、地表淡水、河口水域、近岸及海域水体的富营养化（eutrophication）状态为依据，同时需综合考量水域与陆地的物理及环境特征、科学技术认知，以及行动方案的实施成果。
为保障行动方案各项措施的实施效果，部分经评估具备脆弱性的区域亦可被划定为脆弱区。
针对此类区域，行动方案为相关农户制定了一系列管控要求：
• 自本年度冬季起，严格执行氮肥施用禁令时段
• 为区划覆盖的全部地块编制年度粪肥施用计划
• 留存施肥作业登记册（spreading book）
• 落实畜禽粪便的存储管理规范
• 限制各经营主体年度可施用畜禽粪便的总氮负荷
• 明确畜禽粪便存储的最低容量标准
• 每年至少开展一次土壤检测分析