期刊
REMOTE SENSING
卷 15, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/rs15051236
关键词
random forest; land evaluation; soil; biomass; Hungary; gross primary productivity; soil health; soil quality
A methodology is presented for the quantitative assessment of soil biomass productivity at a national scale. The traditional land evaluation approach was followed, using satellite images, measured yield and net primary productivity data, as well as digital soil and climate maps. The study provides measured soil health and quality indicators for designing sustainable land management practices, and the results can be implemented in cadastral systems and agricultural development programs.
A methodology is presented for the quantitative assessment of soil biomass productivity at 100 m spatial resolution on a national scale. The traditional land evaluation approach-where crop yield is the dependent variable-was followed using measured yield and net primary productivity data derived from satellite images, together with digital soil and climate maps. In addition to characterizing of soil biomass productivity based on measured data, the weight of soil properties on productivity was also quantified to provide measured soil health and soil quality indicators as an information base for designing sustainable land management practices. To produce these results, we used only the Random Forest method for our calculations. The study considers high-input agriculture, which is predominant in the country. Biomass productivity indices for the main crops (wheat, maize and sunflowers) and general productivity indices were calculated for the whole agricultural area of Hungary. Results can be implemented in cadastral systems, in applied in agricultural and rural development programs. The assessment can be repeated for monitoring purposes to support general monitoring objectives as well as for reporting in relation to the United Nations Sustainable Development Goals. However, on the basis of the results, we also propose a method for periodically updating the assessment, which can also be used for monitoring biomass productivity in the context of climate change, land degradation and the development of cultivation technology.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据