National park

A national park is a park in use for conservation purposes. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently, there is a common idea: the conservation of 'wild nature' for posterity and as a symbol of national pride. An international organization, the International Union for Conservation of Nature (IUCN), and its World Commission on Protected Areas, has defined "National Park" as its Category II type of protected areas.

While this type of national park had been proposed previously, the United States established the first "public park or pleasuring-ground for the benefit and enjoyment of the people", Yellowstone National Park, in 1872. Although Yellowstone was not officially termed a "national park" in its establishing law, it was always termed such in practice and is widely held to be the first and oldest national park in the world. The first area to use "national park" in its creation legislation was the US's Mackinac Island, in 1875. Australia's Royal National Park, established in 1879, was the world's third official national park. In 1895 ownership of Mackinac Island was transferred to the State of Michigan as a state park and national park status was consequently lost. As a result, Australia's Royal National Park is by some considerations the second oldest national park now in existence.

Yucca brevifolia

Yucca brevifolia is a plant species belonging to the genus Yucca. It is tree-like in habit, which is reflected in its common names: Joshua tree, yucca palm, tree yucca, and palm tree yucca.

This monocotyledonous tree is native to southwestern North America in the states of California, Arizona, Utah, and Nevada, where it is confined mostly to the Mojave Desert between 400 and 1,800 m (1,300 and 5,900 ft) elevation. It thrives in the open grasslands of Queen Valley and Lost Horse Valley in Joshua Tree National Park. A dense Joshua tree forest also exists in Mojave National Preserve, in the area of Cima Dome.

Taxonomy

The name Joshua tree was given by a group of Mormon settlers who crossed the Mojave Desert in the mid-19th century. The tree's unique shape reminded them of a Biblical story in which Joshua reaches his hands up to the sky in prayer. Ranchers and miners who were contemporary with the Mormon immigrants used the trunks and branches as fencing and for fuel for ore-processing steam engines. It is also called izote de desierto (Spanish, "desert dagger"). It was first formally described in the botanical literature as Yucca brevifolia by George Engelmann in 1871 as part of the Geological Exploration of the 100th meridian or Wheeler Survey.

Joshua Tree National Park

Joshua Tree National Park is located in southeastern California. Declared a U.S. National Park in 1994 when the U.S. Congress passed the California Desert Protection Act (Public Law 103-433), it had previously been a U.S. National Monument since 1936. It is named for the Joshua trees (Yucca brevifolia) native to the park. It covers a land area of 790,636 acres (1,235.37 sq mi; 3,199.59 km²) – an area slightly larger than the state of Rhode Island. A large part of the park, some 429,690 acres (173,890 ha), is a designated wilderness area. Straddling the San Bernardino County/Riverside County border, the park includes parts of two deserts, each an ecosystem whose characteristics are determined primarily by elevation: the higher Mojave Desert and lower Colorado Desert. The Little San Bernardino Mountains run through the southwest edge of the park.

History

The park was initially created as a National Monument on 10 August 1936, containing 825,000 acres (334,000 ha), after Minerva Hoyt led activism aimed at persuading the state and federal governments at protecting the area. The park was elevated to a National Park on 31 October 1994 by the Desert Protection Act, which also added 234,000 acres to the park.

Joshua

Joshua /ˈdʒɒʃuə/ or Jehoshua (Hebrew: יְהוֹשֻׁעַ Yĕhôshúʿa or Hebrew: יֵשׁוּעַ Yĕshúʿa; Aramaic: ܝܫܘܥ‎ Isho; Greek: Ἰησοῦς, Arabic: يوشع بن نون‎ Yūshaʿ ibn Nūn; Latin: Iosue, Turkish: Yuşa), is a figure in the Torah, being one of the spies for Israel (Num 13–14) and identified in several passages as Moses' assistant. He is the central figure in the Hebrew Bible's Book of Joshua. According to the books of Exodus, Numbers and Joshua, he became the leader of the Israelite tribes after the death of Moses. His name was Hoshe'a (הוֹשֵׁעַ) the son of Nun, of the tribe of Ephraim, but Moses called him Yehoshu'a (יְהוֹשֻעַ; Joshua in English) (Numbers 13:16) the name by which he is commonly known. The name is shortened to Yeshua in Nehemiah (Nehemiah 8:17). According to the Bible he was born in Egypt prior to the Exodus.

He was one of the twelve spies of Israel sent by Moses to explore the land of Canaan. (Numbers 13:1-16) After the death of Moses, he led the Israelite tribes in the conquest of Canaan, and allocated the land to the tribes. According to Biblical chronology, Joshua lived between 1355-1245 BCE, or sometime in the late Bronze Age. According to Joshua 24:29, Joshua died at the age of 110.

Tree

In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants to compete for sunlight. In looser senses, the taller palms, the tree ferns, bananas and bamboos are also trees. Trees tend to be long-lived, some reaching several thousand years old. The tallest known tree, a coast redwood named Hyperion, stands 115.6 m (379 ft) high. Trees have been in existence for 370 million years. It is estimated that there are just over 3 trillion mature trees in the world.

A tree typically has many secondary branches supported clear of the ground by the trunk. This trunk typically contains woody tissue for strength, and vascular tissue to carry materials from one part of the tree to another. For most trees it is surrounded by a layer of bark which serves as a protective barrier. Below the ground, the roots branch and spread out widely; they serve to anchor the tree and extract moisture and nutrients from the soil. Above ground, the branches divide into smaller branches and shoots. The shoots typically bear leaves, which capture light energy and convert it into sugars by photosynthesis, providing the food for the tree's growth and development. Flowers and fruit may also be present, but some trees, such as conifers, instead have pollen cones and seed cones; others, such as tree ferns, produce spores instead.