作为生态系统服务指标的 0-30 厘米土层中矿物氮的含量:草地案例研究

Halina Lipińska, I. Shuvar, Wojciech Lipiński, H. Korpita, Weronika Korpita
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引用次数: 0

摘要

氮在农业中的作用在于其矿物形态,影响植物的可利用性和潜在损失,草地中的土壤氮含量在生态系统服务(如调节和维护)中发挥着至关重要的作用。研究旨在利用 0-30 厘米土层中的矿物氮指标来评估这些服务,并建立其生物物理价值和经济价值之间的联系。评估时考虑了使用类型、土壤类型以及作为反刍动物替代饲料的玉米。对永久绿化区(草地、牧场、交替)、草地种植区(短期)和玉米田的 1540 个点的服务进行了评估。研究通过 "0-30 厘米 "土层中的 Nmin 含量进行评估,证实了草地对生态系统服务的重要贡献。生态系统服务的生物物理价值和货币价值最高的是用于草地的草地,而 0-30 厘米土层中的氮敏累积量最低,从而影响了环境服务的范围,这在短期交替种植作物(55.2 千克⸱ha-1)和种植玉米(70.9 千克⸱ha-1)的矿质土壤中可以观察到。在不同的使用方法和土壤类型中,以畜牧业生产集约化为特征的波德拉谢省的草地生态系统服务的生物物理价值和货币价值与其他研究省份相比最高。相比之下,其他省份在这方面的价值相对较低。根据当前的氮肥成本和草地/玉米范围提供的货币价值可普遍衡量不同农场、地区和国家的饲料植物生态系统服务价值
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The content of mineral nitrogen in a 0-30 cm soil layer as an indicator of ecosystem services: А case study of grasslands
Nitrogen’s role in agriculture lies in its mineral form, impacting plant availability and potential losses, with soil nitrogen content in grassy areas playing a vital role in ecosystem services like regulation and maintenance. The research aimed to evaluate these services using the mineral nitrogen indicator in the 0-30 cm soil layer, and to establish the link between their biophysical and financial values. This was done considering usage type, soil type, and corn as an alternative feed for ruminants. Services were assessed across 1,540 points in permanent green areas (meadows, pastures, alternating), grass cultivation areas (short-term), and corn fields. The study affirmed the significant contribution of grasslands to ecosystem services, evaluated through the “content of Nmin in a 0-30 cm” soil layer, which exhibited variations based on usage, type, and regional distinctions. The highest biophysical and monetary values of ecosystem services were found in grasslands designated for meadow use, while the lowest accumulation of Nmin in the 0-30 cm layer, thus impacting the scope of environmental services was observed in mineral soils subjected to short-term alternating crop cultivation (55.2 kg⸱ha-1) and corn cultivation (70.9 kg⸱ha-1). Across various usage methods and soil types, the region characterized by intensified livestock production, the Podlaskie Province displayed the highest biophysical and monetary values for grassland ecosystem services compared to the other provinces under study. In contrast, the remaining provinces exhibited comparatively lower values in this regard. The provided monetary value, based on current nitrogen fertilizer costs and grassland/corn extent, can universally gauge ecosystem service worth from fodder plants across farms, regions, and nations
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