Topic: How Rewilding Projects Restore Biodiversity in Former Farmland · Word count: 840 · Difficulty: beginner · 5 practice questions
A Across Europe, a quiet revolution is taking place on land once used for growing crops or raising livestock. This movement, known as rewilding, is an approach to conservation that aims to restore natural processes and repair damaged ecosystems. Instead of managing land for a specific, single purpose like agriculture, rewilding allows nature to take its own course, with minimal human intervention. A particularly interesting form of this is happening on former farmland. After decades, or even centuries, of intensive agriculture, these lands are often tired and lack the variety of life they once had. Rewilding offers a path to bring back this lost biodiversity, turning uniform fields of green into complex, thriving habitats. B Simply abandoning a farm, however, is not always enough to restore a rich ecosystem. Land that has been ploughed, fertilised, and treated with pesticides for many years often faces several challenges. The soil can be heavily compacted, making it difficult for the roots of many native plants to grow. Furthermore, the seed bank in the soil—the natural storage of seeds from which new plants can grow—is often depleted. As a result, when farming stops, these areas can become dominated by just a few aggressive species of grass or weeds. This creates a simple, monotonous landscape that supports very few types of insects, birds, or mammals. True restoration requires a more active, thoughtful start. C The first and most fundamental step in rewilding former farmland is to stop the activities that defined its agricultural past. This means an end to ploughing, sowing seeds, and applying artificial fertilisers and pesticides. By ceasing this constant management, the land is given the chance to begin healing. Without the pressure of chemicals, soil life such as bacteria and fungi can start to recover. Pioneer species—hardy plants like thistles and brambles—are often the first to arrive, their seeds carried by the wind or by birds. While some may see these as 'weeds', in a rewilding context they are crucial. They provide food and shelter for insects and birds, and their roots begin to break up the compacted soil, preparing the way for other species to follow. D Once the land is left to its own devices, the next key stage often involves introducing 'ecosystem engineers'. These are keystone species, animals whose behaviour significantly shapes and maintains their environment. On former farmland, the most important of these are often large herbivores. Instead of using machinery to manage the landscape, rewilding projects use animals to create a mosaic of different habitats. For example, herds of longhorn cattle, hardy Exmoor ponies, or Tamworth pigs are released to roam freely. The cattle and ponies graze the grasses, preventing them from taking over completely. The pigs use their snouts to root around in the soil, which disturbs the ground and creates patches of bare earth where new seeds can germinate. This constant, varied disturbance is vital for creating a dynamic and diverse landscape. E A leading example of this approach in the United Kingdom is the Knepp Estate in West Sussex. For years, this was an intensively farmed estate that struggled to make a profit. In 2001, the owners decided to switch to a large-scale rewilding project. They removed most of the internal fences and introduced free-roaming herds of old English longhorn cattle, Exmoor ponies, Tamworth pigs, and several species of deer. The results have been extraordinary. The land has transformed from quiet, uniform fields into a bustling mix of grassland, dense scrub, and young woodland. This has led to a remarkable increase in wildlife. Rare species, including the turtle dove, the nightingale, and the magnificent purple emperor butterfly, have returned and are…
Power IELTS — power-ielts.com