The Impact of Walnut Husk Extraction on Kashmir’s Aquatic Biodiversity

1024 683 Parvaiz Yousuf

The Kashmir Valley is a major producer of a variety of agricultural products, including saffron, apples, almonds, peaches, and more. Among these, walnuts are produced in large quantities. However, cultivating and processing walnuts is labour-intensive, particularly when it comes to removing the husk before the nuts can be sun-dried.

One of the biggest challenges is extracting the walnut husk, a process that requires significant manual effort. Recently, however, this practice has introduced an environmental concern, particularly affecting the valley’s aquatic life.

The husk extraction process has been linked to risks for the diverse fish species that inhabit Kashmir’s water bodies. This commentary explores the walnut industry in Kashmir and how it has the potential to impact the already vulnerable fish fauna of the region.

Walnut Industry in Kashmir

The walnut industry in Kashmir has a rich history dating back hundreds of years. The region is renowned for producing some of the finest walnuts in the world, thanks to its unique geographical features, such as high elevation, fertile soil, and abundant freshwater sources, all of which create ideal conditions for walnut cultivation.

India produces approximately 35,000 to 40,000 tonnes of walnuts annually, with about 90% of this production coming from the Kashmir Valley. It is estimated that walnuts are grown on around 89,339 hectares of land in Kashmir, highlighting the significant scale of cultivation. Kashmiri walnuts are prized for their exceptional taste, unique texture, and high nutritional value, making them highly sought after both for their quality and health benefits.

A large number of farmers and traders in Kashmir rely on the walnut industry for their livelihoods. The cultivation of walnuts requires meticulous care, from planting and nurturing the trees to harvesting and processing the nuts. The industry employs a significant portion of the local population, particularly during the walnut harvest season, which typically occurs in late summer and early autumn.

Kashmiri walnuts are in demand not only across India but also internationally, with exports reaching markets in the United States, Europe, the Middle East, and other regions. Despite its substantial contribution to the local economy, the walnut industry faces several challenges, including the need for technological advancements, improved infrastructure, and environmental conservation efforts.

Walnut Husk Extraction

The process of walnut husk extraction plays a crucial role in Kashmir’s walnut industry, as it prepares the nuts for consumption and export. In this stage, the green outer husk that encases the walnut kernel is removed. Extracting the husk is essential to producing the highly sought-after Kashmiri walnuts, renowned for their superior quality, flavour, and texture.

Husk extraction is typically carried out during the harvest season, which spans from late summer to early autumn. After the walnuts are harvested, they are sorted, and the green husks are removed either manually or with the help of specialized machinery.

However, dealing with the discarded walnut husks presents challenges. These husks contain chemicals and natural compounds that can pose environmental risks if not disposed of properly. This has raised concerns about the environmental impact of walnut husk waste in Kashmir, particularly when it contaminates local water bodies, as has been observed in places like Dalseer Wahdhan.

The Tragic Incident at Dalseer Wahdhan

Last year, a walnut husk extraction operation in Pahalgam led to the death of hundreds of fish after machinery was used near a water stream. This tragedy occurred in Dalseer Wahdhan, a picturesque area near Pahalgam, a well-known health resort. Thousands of trout, valued in lakhs of rupees, perished in this unfortunate incident, which was caused by the irresponsible actions of a walnut businessman.

Around 200,000 trout tragically died from suffocation in what was once a pristine and untouched environment. The stream, once a source of life, was contaminated by chemicals released during the walnut husk extraction process. This incident highlights how carelessness on the part of walnut farmers and businessmen can have severe consequences.

The impact of this event goes far beyond financial losses. It has inflicted lasting damage on Kashmir’s fragile aquatic ecosystem. Improper disposal of walnut husk waste, which contains harmful chemicals, poses a serious threat to aquatic life. Such negligence can disrupt the delicate balance of the ecosystem, endangering fish and other species that rely on these water bodies.

Are Chemicals from Walnut Husks Dangerous for Aquatic Animals, Especially Fish?

Yes, chemicals from walnut husks can be harmful to aquatic animals, particularly fish. Walnut husks contain natural compounds such as tannins and juglone, which, when introduced into water, can negatively impact aquatic life. Juglone, in particular, is known for its toxic effects on plants and animals. It releases toxins into the surrounding soil and water, inhibiting the growth of other plants.

When juglone enters water, it can disrupt fish health by affecting their metabolism, reducing their ability to extract oxygen from the water, and damaging their gills and tissues. Prolonged exposure to juglone can lead to fish mortality.

Additionally, the chemicals in walnut husks can alter the water’s chemistry and pH, making it unsuitable for aquatic life. Such changes can stress fish and other organisms, stunting their growth, impairing reproduction, and causing a population decline.

Moreover, these chemicals can disrupt the balance of aquatic ecosystems. A decrease in fish populations can affect both predator and prey species, leading to broader ecological imbalances.

Walnut husk chemicals can also persist in water for extended periods, causing long-term damage to aquatic environments and leading to lasting negative effects on local ecosystems.

The Necessity of Regulatory Action and Responsibility

In response to this environmental disaster, the Department of Fisheries in Anantnag, South Kashmir, has taken commendable steps. The department promptly removed the walnut peeling machine responsible for the incident and halted the operation of similar machines near water bodies.

Additionally, the Deputy Director of Fisheries in Anantnag issued a circular instructing all Circle In-Charges to conduct thorough surveys and inspections to identify those using walnut peeling machines in their respective areas. Notices were sent to operators, requiring them to cease operations immediately.

While it is important to ensure that the livelihoods of walnut traders are not jeopardized, these businessmen must be made aware of the environmental impact their actions have on aquatic life. Proper disposal of walnut husks and adherence to safe practices are now crucial to preventing further harm.

What Needs to be Done to Protect Kashmir’s Aquatic Wealth

Kashmir is home to breathtaking natural landscapes, particularly its pristine water bodies, which are rich in diverse aquatic life. Protecting this vital resource requires collective action from the government, businesses, and the local community.

Raising awareness about the need to preserve Kashmir’s natural heritage is a critical first step. Community members and those involved in the walnut industry must understand the importance of adopting eco-friendly practices. Awareness campaigns and educational programs should be initiated to foster a sense of environmental responsibility. Additionally, more scientific research is needed to assess the impact of industrial practices on local biodiversity. This is where researchers from local colleges and universities can play a key role.

Strict regulations must also be enforced. More robust rules should be implemented to ensure walnut business owners obtain proper permits and adhere to safe walnut husk disposal methods. This would promote sustainable business practices and prevent environmental damage.

Equally important are enforcement mechanisms and regular monitoring. Even the best regulations will fail without proper oversight. Strong enforcement systems, along with frequent inspections, should be established to ensure compliance with environmental standards.

Conclusion

The incident at Dalseer Wahdhan serves as a wake-up call, highlighting how fragile our natural environment truly is. It demonstrates the potential consequences when we fail to prioritize the health and well-being of ecosystems. However, we must also ensure that local walnut farmers and traders are not hindered from cultivating and processing walnuts, as the walnut industry supports tens of thousands of people, both directly and indirectly.

A thorough assessment of the environmental impact of commercial activities, particularly those related to walnut farming, is essential. Many in the walnut industry were likely unaware of the harmful effects that juglone, a compound in walnut husks, can have on fish and other aquatic life. Now that this information is known, it is the responsibility of those informed to share it, while the government must enforce proper guidelines to prevent similar disasters in the future.

References 

https://thekashmiriyat.co.uk/after-trout-fish-worth-lakhs-die-fisheries-department-stops-operation-of-walnut-husk-extract-machines/

https://eng.kisanofindia.com/latest-news/walnut-production-90-of-indias-walnuts-are-produced-in-kashmir/#:~:text=90%25%20production%20in%20Kashmir&text=The%20area%20under%20walnut%20cultivation,walnuts%20in%20the%20major%20valleys.

https://www.greaterkashmir.com/latest-news/fisheries-dept-halts-installation-of-walnut-peeling-machines-amid-environmental-concerns

Parvaiz Yousuf

Parvaiz Yousuf is a writer who also doubles up as a researcher. With an MSc zoology degree under his belt and possessing complete Search Engine Optimization (SEO) knowledge, he works as a science journalist for a US-based website. He also works as Director of Wetland Research Centre, Wildlife Conservation Fund YPJK since 2018. Besides, he has several publications to his name on cancer biology and biochemistry in some reputed journals such as Nature & International Journal of Molecular Sciences, & magazines such as Science reporter, BUCEROS BNHS, and has an abiding interest in ornithology.

Author

Parvaiz Yousuf

Parvaiz Yousuf is a writer who also doubles up as a researcher. With an MSc zoology degree under his belt and possessing complete Search Engine Optimization (SEO) knowledge, he works as a science journalist for a US-based website. He also works as Director of Wetland Research Centre, Wildlife Conservation Fund YPJK since 2018. Besides, he has several publications to his name on cancer biology and biochemistry in some reputed journals such as Nature & International Journal of Molecular Sciences, & magazines such as Science reporter, BUCEROS BNHS, and has an abiding interest in ornithology.

More work by: Parvaiz Yousuf

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