小崎 隆 首都大学東京, 都市環境科学研究科, 教授 (00144345)
縄田 栄治 京都大学, (連合)農学研究科(研究院), 教授 (30144348)
杉原 創 東京農工大学, (連合)農学研究科(研究院), 准教授 (30594238)
間藤 徹 京都大学, (連合)農学研究科(研究院), 教授 (50157393)
渡邉 哲弘 京都大学, 地球環境学堂, 助教 (60456902)
|Budget Amount *help
¥202,280,000 (Direct Cost: ¥155,600,000、Indirect Cost: ¥46,680,000)
Fiscal Year 2016: ¥28,990,000 (Direct Cost: ¥22,300,000、Indirect Cost: ¥6,690,000)
Fiscal Year 2015: ¥30,030,000 (Direct Cost: ¥23,100,000、Indirect Cost: ¥6,930,000)
Fiscal Year 2014: ¥29,640,000 (Direct Cost: ¥22,800,000、Indirect Cost: ¥6,840,000)
Fiscal Year 2013: ¥35,490,000 (Direct Cost: ¥27,300,000、Indirect Cost: ¥8,190,000)
Fiscal Year 2012: ¥78,130,000 (Direct Cost: ¥60,100,000、Indirect Cost: ¥18,030,000)
|Outline of Final Research Achievements
This study clarified the linkage among the soil forming factors such as geology (or parent material), topography and climate, the fluxes of carbon, nitrogen and mineral nutrients, and development of agricultural practices in different regions as their adaptation to such production ecological infrastructure.
The issues relating to the sustainability in the agricultural development under fluctuating climates are most closely linked with the “excess loss” of soluble components and/or soil particles from the agricultural ecosystems. They include 1) leaching loss of essential nutrients from the bottom of soils, 2) gaseous emission from soil surfaces, and 3) losses of soil particles and organic materials through soil erosion. It is indispensable to mitigate these losses by applying appropriate techniques, in order to ensure the sustainable development of agriculture.