Forest conservation 森林保护 Lidartector 激光雷达探测术 How to tell if countries are cheating on theirconservation commitments 如何判断一个国家在森林保护承诺上是否有舞弊行为 The wood and the trees 林地与树木 In an isolated forest in the Sivalik hills of south-western Nepal, intense sun beats downthrough the treetops. 位于尼泊尔西南部西瓦利克山脉一处偏僻的森林内,毒辣的阳光正从树冠强射而入。 A sweaty trek up a steep, rocky slope leads to a spot where a team of researchers is busymeasuring the trees. 经过一段汗流浃背的艰难跋涉,登上一处陡峭怪石嶙峋的斜坡,到达一块区域,就可以看到一组研究人员正忙着对树木进行测量。 They are working for Forest ResourceAssessment Nepal, a joint venture between the Nepalese and Finnish governments. 他们是尼泊尔与芬兰政府森林资源评估合资企业的工作人员。 Two global-positioning-system devices guide the researchers to their target. 凭借两套全球定位系统就可将研究人员带到目的地。 Once there, they use tape measures, callipers and a hand-held laser to measure the heightsand girths of all the trees within a 500-square-metre plot. |