想去班芙的朋友,尽早。

把收碳税的全部精力都拿出来,也对付不了甲虫,因为没人有本事把冬天零下30度持续两周的气候带回来
CFC智慧就是高。有这个觉悟。气候变化。没人有本事逆转。把精力花在对抗上。不能全一窝蜂去减碳。common sense兵来将挡,水来土填。
 
什么碳税,什么绿色能源,净扯淡。怎么就没听说加拿大能够投入力量去一直甲虫,整日收碳税,不知所谓。


松甲虫将产在成熟的黑松树的皮下,并以野生的黑松的韧皮作为食物,将松树钻得千疮百孔的。因此,甲虫一旦钻入了树木,树木就会在一年内死亡。当树木死亡之后,松甲虫释放大量的二氧化碳到大气中,让少数的活树来吸收。研究表示,北部森林先前的气候变化模式没有考虑这种甲虫的群袭行为。

这些甲虫释放了9.90亿吨的二氧化碳,相当于加拿大交通部5年的排放总和。科学家估计从现在到2020年,松树甲虫将会喷射2.70亿吨的二氧化碳。而在《京都议定书》的约定下,加拿大到在2012年之前要减少2.70亿吨的温室气体的排放,这将会导致加拿大的减排努力难以获得成功。


由加拿大林业部沃纳·库兹领导的研究小组测量了森林火灾、伐木和树木因甲虫死亡的累积和单个碳循环的效应。结果发现,仅甲虫的影响就能将森林从小型的净碳源变成大型的净碳源。雪上加霜的是,科学家已经发现北大西洋已经失去部分吸碳的能力。科学家担心同样的情况会发生在整个地球的全部海洋中。海洋每年吸收四分之一的人为排放的二氧化碳。


Mountain pine beetle


The mountain pine beetle (Dendroctonus ponderosae) is a wood-boring insect native to western North America and attacks a wide range of pine trees including lodgepole, ponderosa, western white, whitebark, limber and jack. It does not attack Jeffrey pine.

The mountain pine beetle (MPB) has many natural predators including insects, parasitoids and woodpeckers. However, these enemies do not have sufficient impact to effectively control new or outbreak populations.

Quick facts
  • An ongoing outbreak of mountain pine beetle that started in British Columbia in the early 1990s has affected more than 18 million hectares of forest.
  • As of 2017, the beetle has migrated well beyond its historic range into northern British Columbia and eastward into the boreal forest of north-central Alberta.
  • When beetle populations are low, healthy trees are able to defend and suppress an attack by producing a toxic resin. As more beetles come to a healthy tree, its natural defenses are overwhelmed.
  • Epidemic population levels decline only when all large pine trees are weakened or dead.
  • Beetle populations grow when summers are warm/dry and winters are mild.
MPBLandscape292.jpg

Mountain pine beetle (adult).

Larger image [246 kb JPG]

Impacts
  • Since the early 1990s, the beetle has attacked 50% of the total volume of commercial lodgepole pine in British Columbia.
  • By 2017, the total cumulative loss of pine that could have been sold was estimated at 752 million cubic metres (58% of sellable pine volume).
  • Efforts to control beetle outbreaks have been successful in reducing populations and slowing spread.
  • As the beetle spreads into new areas of the boreal forest, there are many new questions such as how quickly populations spread and what the impact on forest ecology, as well as economic and social values will occur.
那些个气候活动家,土豆,环境主义者,没有一人关心?
 
全球变暖是个事实,但其中人为的因素有多大,还不好说。
环保是正确的,但过分强调则不可取。
 
如果能保证安全,烧吧!完了就是肥料。
 
加拿大林业非常讲究不干预。宁可让虫害扩散,也不干预自然进程。烧山有。但是少,满,贬。
 
印象中鸟不多,天冷?还是被甲虫给吃少了?
鸟儿挺多的,每天凝神听,窗外各种啾啾啾。被虫子撑死了?
 
虫子可是高蛋白,难不成吃红烧肉?
但是找起来费劲, 不如野果,逮着一棵树大吃一顿。或者像猫头鹰吃老鼠,一顿顶一天,吃鱼的鸟也是吃一条顶挺长时间。
这么小的虫子还藏到树皮里,吃起来太艰苦了。
 
加拿大林業非常講究不干預。寧可讓蟲害擴散,也不干預自然進程。燒山有。但是少,滿,貶。
请開帖分享分享你去班芙拍下的美景。:)
 
请開帖分享分享你去班芙拍下的美景。:)
一路风景饱和轰炸。用手机记录了一些。不敢贴呀。更重要的是

不知从何时开始,我见到好的就拍照的习惯慢慢淡了。美好时时刻刻。拍了很多其实也很少再看。因为新的角度新的时段又有新的美好。现在旅游主要是being there,试图记在心里。

感觉旅游理念慢慢西化。过日子的理念也在西化。没办法。

大家去banff最好的记录手段是

dashcam
go pro

再卖两个超大存储sdcard。
 
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