以遥感和地理信息为基础,进行森林调查因子定量估测变量的设置及主要变量因子的优选。
Confirm the setting of estimation variables of forest survey factors and Optimizing the key factors based on rs and GIS.
立木材积表是森林经营中必不可少的工具,材积表的精度直接影响森林调查结果的可靠性。
Standing stock table is a necessary tool for forestry management, whose precision directly affects the reliability of the forest survey.
因此,其在灾害监测、环境监测、资源勘查、森林调查、地形测绘等方面的应用具有独特的优势。
Thus, it has a unique advantage in the field of disaster monitoring, environmental monitoring, resource exploration, forest survey, topographic mapping and so on.
在一次森林调查期间,从一架飞机负载的激光雷达上扫射出一束发出大约一秒7万次脉冲的红外光从树冠层上穿过。
During a forest survey, an aircraft-borne lidar sweeps a beam that fires about 70, 000 pulses a second over the canopy.
在一次森林调查期间,从一架飞机负载的激光雷达上扫射出一束发出大约一秒7万次脉冲的红外光从树冠层上穿过。
During a forest survey, an aircraft-borne lidar sweeps a beam that fires about 70,000 pulses a second over the canopy.
针对普通测树角规在森林调查中存在的弊端 ,研究发明了一种能自动改正坡度的新型角规 ,详细介绍了其原理、结构设计及使用方法。
Focusing on overcome the shortcomings of routine angle gauge using in forest measuration, a new-type angle gauge with the function of correct slope automatically was developed.
初步调查报告将于2008年初编制完成,并将包含关于非森林产品收获活动对大熊猫影响的评价内容。
Pilot survey report will be completed in early 2008 and will include an assessment of the impact of non-forestry product harvesting on the Giant Panda.
作为FRA 2010的一部分,粮农组织及其成员国和伙伴组织将开展全球性森林遥感调查。
As part of the FRA 2010, FAO, its member countries and partner organizations will undertake a global remote sensing survey of forests.
这样的研究调查是有关保护热带森林知识的强大源泉。
Such research inquiry is a powerful source of pertinent knowledge for protecting tropical forests.
调查中,马来西亚不仅拥有最多的、经悉心经营的森林,而且也是成员国中最富庶的国家之一,这决非偶然。
It is no coincidence that Malaysia, the country with the highest proportion of prudently managed forest in the study, is also one of the richest.
在详细的调查下,这个争论慢慢平息下来,部分是因为亚马逊地区数千平方英里的已清除的森林依然是贫瘠的荒原,还没有被开发。
That argument wilts under scrutiny, in part because thousands of square miles of already-cleared forest throughout the Amazon remain barren wastelands, undeveloped.
今年11月,英国自然历史博物馆准备派出60名科学家,调查该森林的两个地区。
In November the Natural History Museum will send 60 scientists to investigate two areas of the forest.
进一步调查表明,OCC至少发放了39个“REDD额度”,每个额度“保证”100万吨的碳排放,涉及12个森林。
Further investigation suggests that at least 39 more "REDD credits" -each "guaranteeing" 1m tonnes of carbon-were issued by the OCC, covering up to a dozen forests.
但是,通过对全球变暖和滥伐森林的共同作用的调查,首次研究便发现许多种类都濒临灭绝危险。
But the first study to look into the combined effect of both global warming and deforestation found most species are in danger of extinction.
调查将显著改善有关土地利用变化,包括森林砍伐、重新造林和森林自然扩展等方面的知识。
The survey will substantially improve knowledge on land use change including deforestation, reforestation and natural expansion of forests.
由于没有证据表明该矿埋有危险废物,调查者认为该例二恶英的来源可能是一个自然过程,也许归因于史前森林大火。
As there was no evidence that hazardous waste was buried at the mine, investigators speculate that the source of dioxins may be natural, perhaps due to a prehistoric forest fire.
由牙医记录确认了其身份,然后调查人员开始着手查明一个装备完善的潜水员为何死于一场森林大火中。
Dental records provided a positive identification. Investigators then set about determining how a fully-clad diver ended up in the middle of a forest fire.
来自英国埃克塞特大学和巴西国家空间研究所的研究人员的这份调查报告,依据的是卫星收集的有关森林砍伐和森林火灾数据。
The researchers - from the University of Exeter, UK, and Brazil's National Institute for Space research - based their findings on satellite-derived data on deforestation and forest fires.
粮农组织支持各国在通过实地调查和森林监测系统来弥补知识差距方面所付出的努力。
FAO supports country efforts to close the knowledge gap through field inventories and forest monitoring systems.
在大火被扑灭后不久,调查研究人员就走访了大约200个森林地区以及含煤地区,他们想要调查清楚在这次山火中被烧掉了多少植物。
The researchers visited almost 200 forest and peatland sites shortly after blazes were extinguished to measure how much biomass burnt.
研究人员通过1月份的调查认为,在亚马逊森林的覆盖下,估计还有比已发现的地面结构大十倍之多的地方还未被检测出来。
The researchers behind the January study, though, estimated that nearly ten times as many such structures—of unknown purpose—may exist undetected under the Amazon's forest cover.
[据防务新闻网站2010年8月3日报道]调查人员8月3日说,俄罗斯森林火灾破坏了莫斯科郊外的海军后勤基地,焚烧了航空设备和车辆。
Moscow - Forest fires plaguing Russia destroyed a naval logistics base outside Moscow, torching aeronautical equipment and vehicles, investigators said Aug. 3.
研究成果表明,河漫滩表层沉积物是森林超低密度地球化学调查的最佳采样介质。
Studies show that surface sediments of the flood land seem to be the best sampling media in ultra-low density geochemical investigation in forest-swamp areas.
遥感分类是森林资源调查和监测不可缺少的内容,分类的精度直接影响遥感数据的应用水平和实用价值。
Remote sensing classification is one of indispensable parts of forest resource survey and supervision. The classification accuracy directly influences the applicable level and practical value.
一天生物学家波特和女儿珍妮来到大森林做调查。
Day biologist Janet Porter and her daughter came to survey forests.
对湖北省大贵寺国家森林公园夏季鸟类进行了调查。
The summer birds in Daguisi National Forest Park of Hubei Province were investigated.
对湖北省大贵寺国家森林公园夏季鸟类进行了调查。
The summer birds in Daguisi National Forest Park of Hubei Province were investigated.
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