为什么澳大利亚北部不适合农业?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t17:34:16z //www.hoelymoley.com/feeds/question/10619 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/10619 8 为什么澳大利亚北部不适合农业? 科林 //www.hoelymoley.com/users/8385 2017 - 06 - 19 t07:13:59z 2017 - 06 - 20 - t04:35:56z < p >澳大利亚北部收到大量的降雨,但其人口是最少的。< / p > < p >例如金伯利地区的西澳大利亚州超过20。每年的降雨量,但人口的密度小于1人/ 3平方。mi。(!) < / p > < p >是澳大利亚北部有一个原因是人类居住和农业缺乏吸引力? < / p > //www.hoelymoley.com/questions/10619/-/10622 # 10622 8 回答由kingledion为什么澳大利亚北部不适合农业? kingledion //www.hoelymoley.com/users/6703 2017 - 06 - 19 t11:23:36z 2017 - 06 - 19 t11:23:36z <标题>不稳定气候< / h1 > < p >让布鲁姆,澳大利亚作为我们的例子。布鲁姆615毫米的雨一年(24英寸),包括58/182/180/102mm在12月到3月。再加上90年代平均高点低,这将是不错的农业在德克萨斯州南部。然而,布鲁姆的降雨量非常不稳定。例如,2016年,雨季开始1月15日,与23毫米的雨就三天。真的在2017年(2016年)雨季开始12月4日。2016年12月也出现222毫米的降雨(还记得平均只有58毫米)包括113毫米在12月23日和24日。2016 - 2017年出现222/230/249/114mm雨,明显降雨后到4月。2015 - 2016年出现0/119/26/28mm下雨。一年看到降雨太少甚至小米,而明年有足够的雨水稻的支持。< / p > < h1 >砖红壤< / h1 > < p >旧热带土壤在雨季或季风多雨地区往往有其土壤淋溶有用的营养素。 The resulting soil is called laterite, and it is heavily enriched in aluminum and iron ore. On the one hand, this explains the mineral wealth of tropical Australia. On the other, laterite (alternately called ferralsols, especially by the UN Food and Agriculture Organization (FAO) ) is hard to farm, with few minerals for the plants, poor moisture retention, and the tendency to form an iron-hardened crust in the dry season.

Not enough people

This is sort of a meta-reason, but Northern Australia is a long way from anywhere. Without very many people, it is hard to build a stable agricultural economy. If a bunch of people where sent there and forced to survive, they'd probably eke something out (for example, like the people who first populated Sydney, or South Africa). But since that never happened...population of the reason never happened. Sort of circular reasoning, but without ever having a reason for a lot of people to show up in Northern Australia (prison colony, religious persecution, etc) no one has ever made the infrastructure that successful farming operations could be based off of.

//www.hoelymoley.com/questions/10619/-/10624 # 10624 5 澳大利亚北部由科林回答为什么不适合农业? 科林 //www.hoelymoley.com/users/8385 2017 - 06 - 19 t21:42:18z 2017 - 06 - 20 - t02:26:16z < p > Kingledion的回答与土壤和气候对农业的挑战在澳大利亚北部。然而,似乎未开发的潜力仍然是重要的。< / p >

Arable Soil

The Australian government agency Commonwealth Scientific and Industrial Research Organisation has concluded that there is "at least 16 million hectares of soil that’s suitable for intensive agriculture".

Irrigation Potential

CSIRO further reports (ibid.) "around 15,000 GL [of water annually]—enough to irrigate almost 1.5 million hectares—could be made available for irrigation" with improved infrastructure.

Political Will

The Australian government is pursuing modest agricultural expansions. The 2015 White Paper on Developing Northern Australia announced an A$170m allocation for water development in northern Australia, including expanded funding for the Ord River Irrigation Scheme.

Developments must contend with the wishes of local stakeholders and state funding limitations.

Proposals for transformative agricultural developments, including perhaps soil improvement and settlement policies, apparently lack political will. The Kimberley Plan, a WWII-era scheme to resettle Jewish refugees in northern Australia, was vetoed by the Australian government in 1944 on the grounds that it would "depart from the long-established policy in regard to alien settlement in Australia". Immigration remains restricted in Australia, and the government is unlikely to import massive foreign manpower as part of a development scheme. The population and economic pressures within Australia are evidently insufficient to motivate a large-scale development of the north.

Further CSIRO info is available here.

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