China’s 70-year soil conservation journey shows why environmental recovery takes time

Healthy soil supports food production, clean water and resilient ecosystems, yet erosion can remove fertile topsoil faster than nature replaces it. China has confronted this challenge for decades across landscapes ranging from the Loess Plateau to northern deserts and the Qinghai-Tibet Plateau.

A review published in International Soil and Water Conservation Research traces more than 70 years of Chinese soil conservation and identifies lessons for countries facing land degradation. It offers a practical message beyond China: lasting soil recovery requires coordinated policy, stable funding, scientific monitoring, public participation and patience. These principles can help countries protect farmland, support communities and adapt land management to climate change.

The review divides China’s experience into three stages. During the "Exploration Stage" (1950s–1980s), efforts concentrated on measures such as terracing, sediment-trapping dams, grass planting and afforestation. During the "Integrated Management Stage" (1980s–2000s), conservation expanded into integrated management of small watersheds, linking erosion control with farming, rural livelihoods and economic development. Since the 2000s, the "Ecological Restoration and Sustainable Development Stage", the focus has shifted toward ecological restoration and sustainability, supported by stronger legislation, nationwide projects and closer oversight of construction.

This transition has produced measurable gains. Between 1985 and 2023, the area affected by soil erosion fell by about 28%, while the estimated annual volume of eroded soil dropped by roughly 47%. Since 2005, conservation projects spread nationwide, alongside growing use of satellites and data systems to detect erosion and monitor development projects.

“China’s experience shows that soil conservation succeeds when engineering, ecological restoration, law and local livelihoods are addressed together,” says corresponding author Xing Yang. “No single measure can respond to the different forms of erosion found across varied landscapes.”

One central conclusion is that environmental recovery takes time. “The strongest decline in erosion area occurred years before the largest reduction in erosion volume, indicating a delay between intervention and its full effect,” shares Yang. “At the national scale, meaningful outcomes commonly required 10 to 20 years of sustained work.”

The remaining task, nonetheless, is increasingly difficult. “Much of China’s unresolved erosion is concentrated in arid, high-altitude and otherwise fragile environments, where restoration is technically demanding,” Yang explains. “Competing interests among governments, farmers, businesses and the public can also complicate implementation.”

Furthermore, long-term commitment must be combined with strategies suited to local ecological and social conditions. “Monitoring progress and adapting policies are as important as launching projects,” Yang adds.

Contact the author:

Xing Yang

Institute of Rural Water Resources and Soil and Water Conservation, Jiangsu Hydraulic Research Institute, China

ydaxue@163.com

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