点评:Like Saguaro National Park Joshua Tree National Park (JTNP) was dedicated to the preservation of a particular, unique desert plant. The Joshua tree, (Yucca brevifolia), is found predominantly in the Mojave Desert and, like the saguaro in the Sonoran desert , is an iconic plant of this region. The plant is not truly a “tree” despite its appearance; even though the trunk appears woody, it does not form the concentric rings as seen in true trees. In the Joshua tree is made up of bundles of fibrous tissue rather than the rings seen in regular trees. This makes estimating the age of Joshua trees, difficult; nevertheless, based on the height of the trees and growth rates. Some of these trees are estimated to be several hundred years old.
The unique growth habit of the Joshua tree is what makes it so visually resting, with a top heavy branching pattern, often with a twisted or gnarly appearance. The traditional story is to how the tree got its name is that the “Mormon settlers thought the trees' outstretched branches resembled Joshua raising his arms in prayer”. The density of the Joshua trees varied highly throughout the park, I saw the densest forest on the west side along Park Boulevard heading to Hidden Valley. The photographic tip is to use the zoom lens rather than the wide angle which emphasizes the density of the trees. The Joshua trees also provide interesting silhouettes. Their shadows also are an interesting photographic subject.
The other main attraction at JTNP are its geologic features, specifically the boulder formations. The fascinating formations are the result of vertical and horizontal fractures on the granite rock which allowed for the erosion of the rocks into the unique structures we see now. JTNP is a must-do for rock climbers and those into bouldering.
The other attraction of JTNPR its night skies. The absence of any significant light pollution has earned it designation of “Dark Sky Park”. While I was not staying in the park I had planned to stay late one night and take advantage of the clear skies for some astrophotography. Unfortunately, what started out as a clear sunny day ended up as an overcast, extremely cold and eventually snowy evening.
The other disappointment was that there was no water at Barker Dam despite being late winter/early spring when one might expect some accumulation of water either from rainfall or snow melt.
We enjoyed the hike and rocks, scrambling around Hidden Valley. But at one point, the area became quite crowded and we left. there was more solitude to be enjoyed around the Cap Rock trail.
There was a scattering of low-growing flowers including pink Common Stork’s Bill/Heronbill and yellow desert fiddlenecks, as well as shrubby yellow goldenbush. The most striking flowering plant was a Parry’s Nolina, a yucca look-alike, with a cream-colored flower spike At least 8 feet tall. Unfortunately this was not a “Superbloom” year in the desert.
There were very few cacti to be seen, both in terms of absolute numbers and in variety of species, in contrast to the Saguaro National Park but that was not too surprising. It was surprising, tough, in comparison to what we had seen at Palm Canyons, not overly far away. The most well-known cactus at JTNP was the Teddybear Cholla, the main attraction at the Cholla Cactus Garden in the middle of JTNP.
Bird sightings were sparse.: Rock wrens, ravens, White-crowned sparrow, Brewer’s sparrow, Black-throated Sparrow, Black-throated Sparrow. We did not see any raptors or Desert quail.
We spotted an unfortunate sight of a silky nest (“tent”) of Western Tent Caterpillar Moths full of squirming caterpillars. This moth is a notorious cause of exfoliation of broadleaf trees during population outbreaks.
The weather was highly variable in late March but generally cooler than expected and the evening rainfall and brief snowfall a total surprise. The usual advice of sturdy footwear and layering clothes (for versatility given the changeable weather) applies. As we were there in late winter it dropped to freezing at night. Of course in the summer protection from the sun and avoidance of strenuous midday activities is advised. No matter the season be sure to have lots of water.
We enjoyed the hikes at JTNP but we did not push ourselves. The countless variations of Joshua Trees as well as rock formations certainly caught our attention.
翻译:和萨瓜罗国家公园一样,约书亚树国家公园 (JTNP) 也致力于保护一种独特的沙漠植物。约书亚树 (Yucca brevifolia) 主要生长在莫哈韦沙漠,和索诺兰沙漠的萨瓜罗一样,是该地区的标志性植物。尽管外观如此,但这种植物并不是真正的“树”;尽管树干看起来很木质,但它并不像真正的树那样形成同心圆环。约书亚树由纤维组织束组成,而不是普通树木的年轮。这使得估计约书亚树的年龄变得困难;尽管如此,还是可以根据树的高度和生长速度来估计。据估计,其中一些树已有数百年历史。
约书亚树独特的生长习性使其在视觉上显得如此静止,顶部分枝繁茂,通常具有扭曲或粗糙的外观。关于这棵树得名的传统说法是“摩门教定居者认为这些树伸展的树枝类似于举起双臂祈祷的约书亚”。约书亚树的密度在整个公园内差异很大,我看到最茂密的森林位于公园大道西侧,通往隐谷。摄影技巧是使用变焦镜头而不是广角镜头,这样可以突出树木的密度。约书亚树也提供了有趣的轮廓。它们的阴影也是一个有趣的摄影主题。
JTNP 的另一个主要景点是它的地质特征,特别是巨石构造。这些迷人的构造是花岗岩上垂直和水平裂缝的结果,这使得岩石被侵蚀成我们现在看到的独特结构。JTNP 是攀岩者和抱石爱好者的必游之地。
JTNPR 的另一个景点是夜空。没有任何明显的光污染,因此获得了“暗夜公园”的称号。虽然我没有住在公园里,但我计划有一天晚上待到很晚,利用晴朗的天空进行一些天文摄影。不幸的是,原本晴朗的一天变成了阴天,天气极度寒冷,最后还下着雪。
另一个令人失望的是,尽管现在是冬末春初,人们可能会看到降雨或融雪积水,但巴克水坝却没有水。
我们喜欢徒步旅行和攀岩,在隐谷周围攀爬。但有一次,这片区域变得非常拥挤,我们就离开了。在 Cap Rock 小径周围可以享受更多的孤独。
那里散落着一些低矮的花朵,包括粉红色的普通鹳嘴/苍鹭嘴和黄色的沙漠琴叶榕,以及灌木状的黄色金花树。最引人注目的开花植物是 Parry’s Nolina,一种类似于丝兰的植物,长着奶油色的花穗,至少有 8 英尺高。不幸的是,今年在沙漠中并不是“超级开花”的一年。
与萨瓜罗国家公园相比,这里可看到的仙人掌非常少,无论是绝对数量还是种类,但这并不令人惊讶。与我们在棕榈峡谷看到的相比,这里的情况令人惊讶,但并不令人惊讶。JTNP 最著名的仙人掌是泰迪熊仙人掌,它是 JTNP 中部仙人掌花园的主要景点。
鸟类目击情况很少:岩鹪鹩、乌鸦、白冠麻雀、啤酒花麻雀、黑喉麻雀、黑喉麻雀。我们没有看到任何猛禽或沙漠鹌鹑。
我们不幸地发现了一个丝绸般的西部帐篷毛虫蛾巢(“帐篷”),里面满是蠕动的毛虫。这种蛾是阔叶树种群爆发期间树皮脱落的罪魁祸首。
3 月下旬的天气变化很大,但总体上比预期的要凉爽,晚上的降雨和短暂的降雪完全出乎意料。通常的建议是穿结实的鞋子和分层的衣服(考虑到多变的天气,为了多功能性)。因为我们是在冬末去的,晚上气温降到了零度。当然,夏天要防晒,避免中午剧烈活动。无论什么季节,一定要多喝水。
我们喜欢 JTNP 的徒步旅行,但我们没有强迫自己。约书亚树的无数变化以及岩层确实引起了我们的注意。