Climate change encompasses a wide range of concepts, including both its causes and effects. In this design course, we explored the ‘soil’ and ‘water’ cycles to address climate change issues from both human and non-human perspectives, considering animals, soil, bacteria, plants, and more. We also engaged in role-playing games to embody natural elements and living systems, such as ‘being a cloud,’ ‘being a river,’ ‘being peat,’ ‘being a worm,’ ‘being a tree,’ and ‘being a cow,’ to foster emotional connections with climate change and the natural world. The first assignment was an engaging exploration and study of the Delftse Hout landscape by university students.

Soil, Water and Biodiversity

The relationship between soil composition and landscape in Delftse Hout has been studied. The area primarily consists of a top layer of clay, with sporadic patches of peat deeper in the soil, as almost all peat was extracted in the 18th century. Despite its limited presence, peat serves as an important carbon sink, storing significant amounts of carbon dioxide. However, the poor drainage of the clay-rich soil presents challenges in the context of climate change, potentially exacerbating flooding risks during intense rainfall events. Restoring and expanding peatlands within Delftse Hout could increase its capacity to store carbon dioxide, mitigate the impacts of climate change, and promote environmental sustainability. 

Hoeve Biesland, a biodynamic farm in Delfgauw, exemplifies natural agricultural management. The farm produces traditional local products, with the baker, vegetable merchant, and butcher each renowned for their high-quality goods.

The farm operates in a closed-loop manner, minimizing losses and maximizing electricity generation. Instead of simply managing nature, Hoeve Biesland chooses to collaborate with it to shape the surrounding landscape, a practice known as ‘landscape management.’ Their goal is to achieve a balance of development and harmony for humans, animals, and nature through extensive agriculture conducted in the most natural way possible. 

Water management at the farm involves maintaining high water levels in summer to protect grassland soil and provide habitats for smaller grassland birds. In winter, lowering the water level accelerates lawn growth, which nourishes birds and livestock and creates food for the following spring. 

Crop rotation is also crucial for maintaining soil fertility. Continuous planting of the same crop depletes specific nutrients, leading to poor plant growth and increased pest and weed infestations. Organic farmers at Hoeve Biesland implement a multi-year planting plan, alternating crops that require different nutrients to maintain soil balance.

Cultivating a landscape rich in biodiversity through targeted grazing and appropriate livestock fertilization is essential. This approach raises awareness of the importance of balance and attracts visitors to the farm through various activities, promoting sustainable practices and environmental stewardship education.