کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6293993 1617141 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using satellite vegetation and compound topographic indices to map highly erodible cropland buffers for cellulosic biofuel crop developments in eastern Nebraska, USA
ترجمه فارسی عنوان
با استفاده از پوشش گیاهی ماهواره ای و شاخص های توپوگرافی ترکیبی برای نقشه برداری از بافر های زراعی بسیار متراکم برای زراعت های زیست محیطی سلولزی در شرق نبراسکا، ایالات متحده آمریکا
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


- We map highly-erodible cropland buffers for future biofuel feedstock developments.
- ∼1400 km2 waterway buffers in eastern NE are suitable for biofuel crop development.
- The estimated switchgrass production for the suitable areas is ∼1.2 million tons.
- Results provide useful information on optimal land use and management in eastern NE.

Cultivating annual row crops in high topographic relief waterway buffers has negative environmental effects and can be environmentally unsustainable. Growing perennial grasses such as switchgrass (Panicum virgatum L.) for biomass (e.g., cellulosic biofuel feedstocks) instead of annual row crops in these high relief waterway buffers can improve local environmental conditions (e.g., reduce soil erosion and improve water quality through lower use of fertilizers and pesticides) and ecosystem services (e.g., minimize drought and flood impacts on production; improve wildlife habitat, plant vigor, and nitrogen retention due to post-senescence harvest for cellulosic biofuels; and serve as carbon sinks). The main objectives of this study are to: (1) identify cropland areas with high topographic relief (high runoff potentials) and high switchgrass productivity potential in eastern Nebraska that may be suitable for growing switchgrass, and (2) estimate the total switchgrass production gain from the potential biofuel areas. Results indicate that about 140,000 hectares of waterway buffers in eastern Nebraska are suitable for switchgrass development and the total annual estimated switchgrass biomass production for these suitable areas is approximately 1.2 million metric tons. The resulting map delineates high topographic relief croplands and provides useful information to land managers and biofuel plant investors to make optimal land use decisions regarding biofuel crop development and ecosystem service optimization in eastern Nebraska.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Indicators - Volume 60, January 2016, Pages 64-70
نویسندگان
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