As urban and rural systems expand, traditional agriculture f-aces challenges to a great extent.In China's agricultural industry structure, the proportion of animal husbandry is increasing year by year.
2022霍普杯二等奖<牧>深度解读
▲ 中国历年农业结构变化 @笔者自绘
畜牧业的碳排量非常大，占温室气体总排放量的18%，是全球气候变暖的第二大原因。
It's worth noting that livestock farming produce high carbon emissions. Livestock production accounts for 18% of greenhouse gas emissions throughout the world, making it the second largest contributor to global warming.
2022霍普杯二等奖<牧>深度解读
▲ 全球温室气体排放比例结构 @笔者自绘
同时，畜牧业侵占了越来越多的土地，影响了种植业的发展。
At the same time, livestock are encroaching on more and more land due to overgrazing.
2022霍普杯二等奖<牧>深度解读
▲ 畜牧业对种植业的空间侵占示意 @笔者自绘
因此，在高密度的大城市环境中，我们提出了一种 “垂直放牧”的原型。
Therefore we propose a new grazing model in a high-density urban environment. We want to take up the least amount of space and get the most benefit at the least cost.We named this prototype "vertical grazing".
2022霍普杯二等奖<牧>深度解读
▲ 方案效果图 @笔者自绘
我们在内蒙古自治区选择了六个城市的大型商业中心周围的空地进行实验验证。
We selected six cities in Inner Mongolia Autonomous Region for experimental verification.The site was chosen next to a large commercial center in the city, with each area focusing on a different industry.
We separately calculated the cost of time, land, transportation and manpower of six plots under the same output, and compared the changes before and after the prototype placement to verify the feasibility of the experiment.
At the same time, we optimized the tilt Angle of the prototype, changed the Angle at the same time as the bottom surface area, and used the three contradictory goals of tilt Angle, economic benefit and carbon emissions to find the set of Pareto solutions. After ten iterations, the optimal Angle was obtained as 80°.
On this basis, we placed three layers of grazing blocks on the north side, and added moveable tracks on the exterior of the structural panels to attach the grass board. The 24 grass slabs were divided into eight large areas, and each area was rotated every 4 days with a cycle of 32 days. The grass on the south side was used for growth and maintenance, and the grass on the north side was rotated to feed cattle in turn.
2022霍普杯二等奖<牧>深度解读
▲ 立面轮牧运作机制演示 @笔者自绘
在能源的循环利用上，我们对碳排量很高的牛粪进行了处理，可用来养鱼和施肥，达到鱼牧共生之效。
In terms of energy recycling, we treated cow manure with high carbon emission, which was dropped through pipes and then used to feed fish and fertilize, so as to achieve the effect of fish-husbandry symbiosis.
Rainwater is collected on the facade and transported to the treatment layer for storage and maintenance. At the same time, to ensure the separation of the cattle circulation, we set up a human ladder and a cattle ladder.
Divided by layers in the interior space, we adjust the internal function according to the industry of different regions.People in the city can also come here to watch the grass cultivation process and interact with the cattle in close proximity.
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