如何重要的是有机棉农业向美国的全球总生态足迹吗?- 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 - 08 - 18 - t21:59:45z //www.hoelymoley.com/feeds/question/4954 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/4954 3 如何重要的是有机棉农业向美国的全球总生态足迹吗? 玛格丽特 //www.hoelymoley.com/users/2983 2015 - 06 - 04 - t15:12:42z 2015 - 06 - 06 - t05:48:25z < p >人类活动的生态足迹在全球公顷(gha)可以测量。棉花生产一吨产品的生态足迹范围从2.17 gha有机棉3.57 gha传统棉(见< a href = " http://www.sei - international.org/mediamanager/documents/publications/sei报告- ecologicalfootprintandwateranalysisofcottonhempandpolyester - 2005. - pdf”rel =“nofollow”>分析< / >)。如何重要的是,相对于我们的全球总生态足迹吗? < / p > //www.hoelymoley.com/questions/4954/-/4955 # 4955 4 答案由f。索普如何重要的是有机棉农业向美国的全球总生态足迹吗? f.thorpe //www.hoelymoley.com/users/543 2015 - 06 - 04 - t15:37:29z 2015 - 06 - 06 - t05:48:25z < p >生态足迹的影响一个人对环境或社区,表示为所需的土地来维持他们的使用自然资源。全球公顷(gha) < A href = " http://en.wikipedia.org/wiki/Global_hectare " rel =“nofollow”>维基百科< / >:< / p > < blockquote > < p >一个全球公顷代表所有生物生产性领域的平均生产率(以公顷)在地球上在某一年。< / p > < /引用> < p >…< / p > < blockquote > < p >全球biocapacity公顷是一个有用的措施,因为它可以类似人类的饮食需求转换成一个物理区域,这可以显示多少人地球上某些地区可以维持,假设当前技术和农业方法。它可以作为一种确定相对地球的承载能力。< / p > < /引用> < p >…< / p > < blockquote > < p >全球公顷的总数大约是113亿人,平均每人约1.8全球公顷(2004)。< / p > < /引用>

I highly suggest you read this page here: http://www.footprintnetwork.org/en/index.php/GFN/page/frequently_asked_questions/ and here:http://www.footprintnetwork.org/en/index.php/newsletter/bv/humanity_now_demanding_1.4_earths

which explains global footprint quite nicely and puts it into perspective.

The data show that humanity’s demand on the biosphere for providing natural resources and absorbing carbon dioxide emissions is 44 percent more than what nature can provide. This ecological overshoot means it now takes approximately 18 months for the Earth to regenerate what we use in one year. The urgent threats we are facing today - most notably climate change, but also biodiversity loss, shrinking forests, declining fisheries and freshwater stress - are symptoms of this trend.
Baidu
map