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Bayou Lafourche

Bayou Lafourche - LDEQ Nonpoint 319 Projects

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variety of ribbon cane and Etienne Bore’s successful attempt in 1794 to granulate cane<br />

syrup sent investors searching for land on which to cultivate their new commodity.<br />

Many of these investors found suitable land on the rich natural levees of <strong>Bayou</strong><br />

<strong>Lafourche</strong>. Family farmers who had made their homes along the bayou were often<br />

quick to sell their land for a perceived profit. The plantation era of <strong>Bayou</strong> <strong>Lafourche</strong> was<br />

born.<br />

Commercial production of sugar cane was a labor intensive process that required a<br />

capital investment in laborers and equipment. Loans were procured to acquire these<br />

assets. To repay creditors, landowners cleared more land to cultivate more cane. Land<br />

clearing necessitated additional laborers whose purchase required additional funding.<br />

This self-perpetuating growth led to expansion of sugar plantations down <strong>Bayou</strong><br />

<strong>Lafourche</strong> and away from the bayou to the swamps beyond the natural levees. Each<br />

plantation was self-sufficient and produced (in addition to cane) all the produce<br />

necessary to sustain its workforce and its livestock. This required additional land for<br />

cultivation. Forests were cleared<br />

and canals were constructed to drain<br />

lowland areas. The waters of <strong>Bayou</strong><br />

<strong>Lafourche</strong> were used to irrigate<br />

crops and provide for any other use<br />

necessary during day to day life on<br />

the plantation.<br />

Production levels of sugar cane have<br />

varied significantly since it was first<br />

introduced to the shores of <strong>Bayou</strong><br />

<strong>Lafourche</strong>. Despite eras of boom<br />

and despair, sugar cane continues to<br />

rein as the predominant agricultural<br />

commodity of the <strong>Lafourche</strong> region.<br />

Advancements in crop production have proved advantageous to farmers, and<br />

occasionally harmful to the natural ecology of the surrounding area. A suite of<br />

chemicals has been developed to deal with natural threats and promote increased<br />

production. As rain water washes over fields, canals constructed to expedite drainage<br />

carry these herbicides, insecticides, and fertilizers into receiving canals, bayous, and<br />

lakes.<br />

When fertilizer reaches <strong>Bayou</strong> <strong>Lafourche</strong> it works quickly to fulfill the purpose it was<br />

intended to perform in the field. Elevated levels of nitrogen and phosphorus promote<br />

plant growth in the bayou. Rather than maximizing crop yields, these fertilizers increase<br />

algae production and promote the growth of aquatic plants that often choke the bayou<br />

during spring and summer months. This unsightly growth limits recreational use and<br />

can clog intakes used to extract irrigation and drinking water from the bayou. As the<br />

days shorten and the weather cools, these dense mats of aquatic plants die. Decaying<br />

plant matter is exploited by organisms that utilize the vegetation as a food source. As<br />

these organisms consume the decaying plants, they also consume oxygen. A<br />

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