{"id":22011,"date":"2020-03-03T15:13:51","date_gmt":"2020-03-03T20:13:51","guid":{"rendered":"https:\/\/ncseagrant.ncsu.edu\/currents\/?p=12401"},"modified":"2024-05-21T15:54:02","modified_gmt":"2024-05-21T19:54:02","slug":"reconstructing-the-past-to-understand-impacts-on-water-quality","status":"publish","type":"post","link":"https:\/\/ncseagrant.ncsu.edu\/coastwatch\/reconstructing-the-past-to-understand-impacts-on-water-quality\/","title":{"rendered":"Reconstructing the Past to Understand Impacts on Water Quality"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Lise Montefiore, a WRRI and North Carolina Sea Grant joint fellow, studies decades of satellite data to see where and how industrially-owned hog facilities may be impacting water quality.<\/h2>\n

BY MAYA HOON<\/strong><\/p>\n

Home to many swine industries, North Carolina has been a booming hub for concentrated animal feeding operations (CAFOs) since the 1980s. However, as hog farms continue to increase, more hog waste is stored in open-air lagoons, posing risks to water resources.<\/p>\n

Hog CAFOs are industrially-owned hog facilities, typically hosting high densities of swine. These CAFOs are designed to contain and feed swine before they are harvested for meat production. As these hogs are raised, their waste \u2013 usually consisting of feces \u2013 is kept in waste lagoons.<\/p>\n

\n
\"Lise<\/a>
Lise Montefiore is a third-year Ph.D. student in the Biological & Agricultural Engineering Department at NC State University.<\/figcaption><\/figure>\n

Many hog farmers spray stored hog waste from the lagoons onto surrounding agricultural fields to recycle the waste and water crops. However, these sprays potentially introduce pathogens, excessive nutrients (such as phosphorus and nitrogen), and other emerging contaminants into water resources through soil infiltration and runoff. Not only are water resources threatened, but local communities as well.<\/p>\n

Interested in the relationship between hog farm density and local water quality, Lise Montefiore, a third-year Biological & Agricultural Engineering (BAE) Ph.D. student at North Carolina State University, is using a joint North Carolina Sea Grant \u2013 WRRI fellowship to tackle the issue.<\/p>\n

Montefiore uses historical water quality data and swine density data to reconstruct the growth of swine CAFO waste lagoons since 1985. Once she gathers this data, she will analyze any connections between water quality patterns and waste lagoon densities.<\/p>\n

A Researcher Since Childhood<\/b><\/h3>\n

\u201cSince I was young, maybe six or seven years old, I\u2019ve wanted to do research,\u201d Montefiore says. \u201cMy career aspirations were always related to research.\u201d<\/p>\n

While she had not definitively chosen to pursue water research, Montefiore\u2019s natural curiosity drew her to environmental research at a young age.<\/p>\n

When hiking with her mother, Montefiore would often stop to pocket a stone on the path, carrying it home to her \u201claboratory\u201d where she would observe the stone in water and perform small experiments of her own.<\/p>\n

Although her initial interests pertained to volcanology and geology, Montefiore\u2019s focus became land use impacts on water resources throughout her undergraduate career.<\/p>\n

\u201cIf we don\u2019t have water, we cannot live. We cannot have food. It\u2019s a very critical resource,\u201d Montefiore says. \u201cI didn\u2019t want to do something that was not significant. I wanted to do something that could improve people\u2019s lives.\u201d<\/p>\n

Crafting Methods<\/b><\/h3>\n

Working in the Biosystem Analytics Lab under her advisor, Natalie Nelson, Montefiore does not conduct field and lab work like some of her peers in the BAE department. Instead, \u201cMy best friend is my computer,\u201d she says.<\/p>\n

Devoting her time to her screen, Montefiore uses Google Earth Engine, R, and other open sources, where she can get her data and statistical analyses. With these tools at hand, she has developed a method to apply algorithms to satellite images in which she can detect waste lagoons.<\/p>\n

\u201cThere were a lot of difficulties,\u201d Montefiore admits. \u201cInitially, the method I proposed to detect swine CAFO growth with imagery did not work. Then, I found a new solution that was much better, but it could only correctly detect 50% of swine CAFOs, so I reviewed the problem and improved it.\u201d<\/p>\n

\n
\"\"<\/a>
As a researcher with the Biosystem Analytics Lab, Montefiore spends a good chunk of her time conducting geospatial analyses.<\/figcaption><\/figure>\n

Despite some challenges, Montefiore enjoys creating new methods to analyze data.<\/p>\n

\u201cI like problem-solving,\u201d she says. \u201cIt sometimes is hard, but it\u2019s very rewarding when finally it works.\u201d<\/p>\n

Montefiore presents her water quality research at international conferences, such as the American Geophysical Union, with the aid of her fellowship. At these conferences, she receives feedback that helps her improve her algorithms and methodology and learn as a researcher.<\/p>\n

\u201cI didn\u2019t want to do something that was not significant. I wanted to do something that could improve people\u2019s lives.\u201d<\/p>\n

Understanding the Past to Understand the Present<\/b><\/h3>\n

While she is still reconstructing the geospatial data, Montefiore is eager to understand the historical connection between water quality and swine density. She hopes to use her findings to narrow down potential solutions to improve water quality.<\/p>\n

After completing her reconstruction of Duplin county\u2019s swine CAFO density, Montefiore plans to apply her methods to the entire coastal plain of North Carolina.<\/p>\n

\u201cI think it is very important to understand the past modules to understand the present,\u201d Montefiore says. \u201cIt can help us look at what communities faced in the past or face now. It can help us understand how we should manage waste lagoons. It also has the potential to help with water, air, and soil quality modeling in the future.\u201d<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Lise Montefiore, a WRRI and North Carolina Sea Grant joint fellow, studies decades of satellite data to see where and how industrially-owned hog facilities may be impacting water quality.<\/p>\n","protected":false},"author":63,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ncst_custom_author":"","ncst_show_custom_author":false,"ncst_dynamicHeaderBlockName":"","ncst_dynamicHeaderData":"","ncst_content_audit_freq":"","ncst_content_audit_date":"","ncst_content_audit_display":false,"ncst_backToTopFlag":"","footnotes":""},"categories":[761],"tags":[882,883,884,885,886,855,887,836,837,888,800,889,845,890,891,868],"_ncst_magazine_issue":[],"class_list":["post-22011","post","type-post","status-publish","format-standard","hentry","category-currents","tag-cafo","tag-data","tag-environment","tag-environmental-science","tag-farm","tag-fellowship","tag-hogs","tag-nc-sea-grant","tag-nc-wrri","tag-north-carolina-sea-grant","tag-research","tag-satellite","tag-sea-grant","tag-swine","tag-waste","tag-water-quality"],"displayCategory":null,"acf":[],"yoast_head":"\nReconstructing the Past to Understand Impacts on Water Quality - 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