Tuesday, June 1, 2010

Final Lab
















Glancing over the census map, most of California, the Seattle area, and the Northeast appear to have the highest concentrations of Asian-Americans in the country. These results are not surprising given the history of Asian Americans. The first Asian Americans to arrive in America in large numbers were the Chinese during the middle of the 19th century. They came to California--arriving at the dock of San Francisco, where many Chinese still reside today--as gold prospectors and laborers on the transcontinental railroad. Prompted by fears of a "yellow peril," Congress passed the Chinese Exclusion Act in 1882 to stem the growing Chinese population. This was followed by the Asiatic Barred Zone Act in 1917 to cut off immigration of other Asians into America. These xenophobic laws were not entirely repealed until 1965. After this, Asians began flooding into America en masse. Because many of these Asian immigrants were poor, they could not afford to buy land in the countryside and had to settle instead in the then more affordable urban centers--like Los Angeles, San Francisco, Seattle, and New York City just to name a few. Today, nearly 11 million Asian Americans are mainly clustered along the coast, where the largest urban centers are located, and their numbers are rapidly growing--second only to Latin Americans.
















People of African ancestry were among the earliest immigrants to what is now the United States. The first Africans arrived in America in the early 1600s as indentured servants who settled in Jamestown, Virginia. Some of these indentured Africans managed to work their way out of debt and eventually became relatively wealthy in the Americans colonies. Unfortunately, indentured Africans were also accompanied by enslaved Africans. But enslaved Africans did not arrive to the Americas in large numbers until the 1700s, when a thriving slave-based economy was firmly established in what is now the southern United States. There, Africans outnumbered their white masters, slaving away for them at cotton fields. When they were finally freed after the Civil War by Emancipation Proclamation in 1862, African Americans were allowed to move freely in numbers around the United States for the first time. Many settled in New York City and the Los Angeles area, but, even today, most of the 37 million African Americans still live on the same land in the southern United States where their enslaved ancestors toiled.

















This category includes people who do not fall in the "White", "Black or African American", "American Indian and Alaska Native", "Asian" and "Native Hawaiian and Other Pacific Islander" race categories. These respondents tend to be Hispanics, with origins in just about every Latin American country, including Mexico, Puerto Rico, and Cuba. People of Hispanic descent have had a long history in what is now the United States. In fact, most of the American southwest--California, Nevada, Utah, Arizona, New Mexico, and Texas--was once part of Mexico but ceded by the country in 1848 after the Mexican-American War. Although many Mexicans left the ceded lands, some also stayed and became American citizens. Mexicans began returning to their former homeland in large numbers as contracted laborers in the early 19th century, attracted by the burgeoning American economy. Mexicans and other Hispanics have not stopped coming since, and their immigration rate and growth is unparallelled in the United States. Today, the 47 million Hispanic Americans are found all over America but primarily in the southwestern United States.

Conclusion

These demographic maps, based on data collected by the US Census in 2000, reveal the settlement patterns of various races in the United States. The settlement patterns observed in each map are not arbitrary, rather, they are highly indicative of the colorful immigration history of each respective race. The largest Asian populations reside along the coast, with especially large congregations in most of California, the northeastern United States, and the Seattle Metropolitan area. Black populations are prevalent and even a majority in many parts of the southern United States. Some other races alone, comprised mainly of Hispanics, have a strong presence in the southwestern United States, especially along the Mexican-American border.

GIS Reflection

This quarter, my learning about GIS and what constitutes it has been an insightful experience. Prior to taking Geography 7, I had only a vague idea about GIS. I knew it had something to do with maps, but that was about all I could say if some asked. I did not even know what the acronyms stood for. But after taking this course, not only do I now know what GIS stands for (Geographic information systems!) but I can also proudly explain--at the very least--the basic idea of GIS. It is any system that captures, stores, analyzes, manages, and presents data that are linked to location with the help of a computer. Fortunately, this course had a hands-on component to supplement the dry, abstract ideas so that I could experience the GIS process myself. This came in the form of a software known as ArcGIS, which many consider to be leading software in the field of GIS. Drawing from what little I know about GIS--relative to the breadth of the entire discipline of course--I have clicked and clicked my way through a fruitful, albet also frustrating at times, learning experience with ArcGIS. In the process, it has helped me to gain a more wholesome understanding of the implication of GIS. It is a burgeoning field with wonderful tools that will help people better understand the world. And that's a good thing.

Wednesday, May 26, 2010

Week 8
















On August 26, 2009, Los Angeles County experienced its worst wildfire ever and the 10th worst overall in the history of California. The wildfire was christened the "Station Fire" because it started near the US Forest Ranger service station on the Angeles Crest High Way, which runs through the heart of Angeles National Forest. The wildfire burned well over a month until October 16 when, after $93.8 million dollars of taxpayer money was spent containing the wildfire, it was finally suppressed with help from moderate rainfall. Officials believed that the wildfire was caused by arson and launched a still pending investigation into the matter (Bloomekatz). Although justice has not yet been executed, the official tally for the blaze's total damage has. The Station Fire burned 160,577 acres in all, destroyed 209 structures and homes, and left two firefighters dead (Inciweb). While the damage was devastating, it could have been much worse. The Station Fire had ravaged over a quarter of Angeles National Forest, which lies precariously close to the urban regions of Los Angeles County. The following thematic map shows how much worse the Station Fire could have been because of its proximity to sensitive places like heavily populated bases, significant ecological areas, and other portions of our valuable state parks.

About 9,862,049 people live in the county of Los Angeles, which is the country's largest hodgepodge of cities, districts, and neighborhoods (US Census Bureau). Most are located in the southern portion of the county, divided from the northern urban enclave mainly by none other than Angeles National Forest, the site of the Station Fire. Although the wildfire began near the southern border of Angeles National Forest, the progression of the wildfire was northward into relatively unpopulated areas rather than southward into the county's urban areas. Nonetheless, the Station Fire threatened 12,000 structures located nearby in the communities of La CaƱada Flintridge, Glendale, Acton, La Crescenta, Littlerock and Altadena, as well as the Sunland and Tujunga neighborhoods of the city of Los Angeles (InciWeb). Encroaching blazes forced many of the people living in these areas to evacuate. Fortunately, the flames abided before significant damage could be done and the northern part of, or perhaps even all of, urban Los Angeles was spared and no mortality reported.

Los Angeles and its metropolitan area is one of the largest, most populated, and urban places on earth; but, surprisingly, Los Angeles County is also home to many significant ecological area (SEA), a concept unique to the county in all of southern California. As defined by the County of Los Angeles Department of Regional Planning, SEA are "ecologically important land and water systems that are valuable as plant or animal communities, often important to the preservation of threatened or endangered species and to conservation of biological diversity in the County" (LA County). In other words, losing a SEA would be devastating to the natural biome of the Los Angeles region. Fortunately, the Station Fire came close to harming only one SEA: Tujunga Valley, which comprises Tujunga Wash (a tributary of the Los Angeles River), Hansen Dam, a reservoir and lake, and countless valuable wildlife.

Unlike heavily populated urban areas and sensitive significant ecological areas, Angeles National Forest took the brunt of the Station Fire and more it would have burned away if not for human intervention. The state park is home to many endangered flora and fauna like the Los Angeles sunflower and the mountain yellow-legged frog, and losing them because of a man-made fire would be a vicious blow to biological conservation. But Angeles National Forest is not simply a haven for wildlife. Atop of Mt. Wilson, located in the state park, is also the home of Mount Wilson Observatory, which includes several historically significant telescopes and multi-million-dollar astronomical facilities, and transmitters for 22 television stations, several FM radio stations, and police and fire department emergency channels (Becerra, Knoll). Fortunately, the fires never were unable to burn beyond the slopes of the mountain.

Indeed, the Station Fire was one of the worst wildfires in California history, but it could have been much worse because of its proximity to many vulnerable areas. But fortunately, the wildfire’s burning was nearly entirely restricted to the Angeles National Forest, which experiences periodical fires anyway as a means of regeneration in its chaparral ecosystem. Nonetheless, had it not been human containment, the human caused Station Fire would have certainly spread into more vulnerable areas.


















Works Cited

Becerra, Corina Knoll and Hector. TV signals from Mt. Wilson at risk. newspaper. Los Angeles: Los Angeles Times, 2009.

Bloomekatz, Ari B. Station fire was arson, officials say; homicide investigation begins. online newspaper. Los Angeles: Los Angeles Times, 2009.

Incident Information System. 31 August 2009. 25 May 2010. inciweb.org/incident/article/9360

Los Angeles County Department of Regional Planning. 2009. 25 May 2010. http://planning.lacounty.gov/view/significant_ecological_areas_faq

US Census Bureau. 2008. 25 May 2010 . http://www.census.gov