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Forest Tree Species Diversity Depends on Individual Variation（图）
Forest Tree Species Diversity Individual Variation
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2010/3/4
Models clearly show that the coexistence of competing species depends on those species responding differently to the availability of resources. Then why do studies comparing competing tree species dra...
Carbon Storage in Forest Soils Recovers Rapidly following Disturbance by Mass Wasting
Carbon Storage Forest Soils Mass Wasting
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2009/12/16
Soils comprise the largest non-marine carbon pool, exceeding that of the atmosphere and terrestrial biosphere combined. The high carbon storage potential of forest soils and the large area of forested...
Agriculture Secretary Vilsack Announces Recovery Act Projects for Forest Road Maintenance and Associated Watershed and Ecosystem Restoration
Agriculture Secretary Recovery Act Projects Forest Road Maintenance Ecosystem Restoration
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2009/6/3
Agriculture Secretary Tom Vilsack announced today projects funded by the American Recovery and Reinvestment Act (ARRA) for roads maintenance and decommissioning and associated watershed restoration. T...
中越边境维管植物野外考察圆满完成（图）
云南中越边境地区 森林生态系统
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2008/11/21
云南中越边境地区是中国面向越南的最前沿地带之一，是中南半岛内陆“绿色大三角洲”地带的重要组成部分。在东南亚热带地区，该地带是目前热带森林生态系统保存最为完整的部分之一。
《自然》：成熟森林在全球碳平衡中具有重要作用（图）
成熟森林 碳平衡 重要作用
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2008/9/12
美英等多国科学家近日研究发现，与盛行40余年的传统观点不同，成熟森林（old growth forest）能够几百年不断地持续从大气中吸收二氧化碳，减轻气候变化。相关论文发表在2008年9月11日的《自然》（Nature）杂志上。
森林利用二氧化碳制造有机分子，并储存在组织中。20世纪60年代，一项对单一森林的研究认为，150年以上的森林释放的碳与它们从大气中吸收的一样多，因此被称为“碳中...
通过人工冰冻和电导率的测定，对黄土丘陵沟壑区引种载培的美国黄松、班克松和乡土树种油松的抗寒性进行了鉴定，并探讨其抗寒机理.结果表明，班克松的抗寒性比油松强，而美国黄松的抗寒性比油松稍弱.班克松的束缚水/自由水比值高达7.0，组织中ABA含量高达164.3 μg·g-1 FW；但可溶性糖和K+含量较低，分别为12.0%和2 450 μg·g-1 DW.油松则是可溶性糖、K+和ABA含量都较高，分别为...
俄罗斯平原针－阔林过渡带森林群落组成结构与物种多样性的研究
针阔林过渡区 群落的组成结构 物种多样性 俄罗斯
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2007/8/5
摘要：
俄罗斯平原针－阔林过渡带森林群落的物种多样性的研究表明，该地区的物种多样性类同于许多类型的过渡带，即群落的过渡带 (针阔混交林)比相邻群落(针叶林和阔叶林)具有更高的多样性。针阔混交林群落的组成结构较好地反映了其特殊的过渡性。在该过渡带较高的物种多样性并不证明群落稳定性的增加。因此，在探讨多样性与群落稳定性关系时，综合包括均匀度在内的多个指数才可能作出较为客观的结论。
Northern Forests Less Effective Than Tropical Forests in Reducing Global Warming（图）
carbon sink global warming Tropical Forests
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2007/7/5
June 21, 2007，Forests in the United States and other northern mid- and upper-latitude regions are playing a smaller role in offsetting global warming than previously thought, according to a study appe...
美科学家通过修改基因成功控制树木生长高度
美国俄勒冈州立大学 基因工程技术 观赏植物 树木生长高度
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2007/6/25
据美国每日科学网站2007年6月19日报道，美国俄勒冈州立大学的林业科学家通过修改树的基因，成功控制了树木生长高度。专家说，这种技术拥有广泛的用途，从观赏植物到苗圃业，都可从中受益，但推广的前提是要消除规章制度方面的障碍，前景还是一个未知数。研究表明，人类可以培育出微型树，这种树看起来和普通树没什么两样，但经过多年生长，高矮控制在50英尺（1英尺约合0.3米）到几英寸不等。这证明通过基因工程技术，...
Michigan State University researchers monitor global climate change（图）
climate change tropical deforestation
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2007/5/28
May 27, 2007，EAST LANSING, Mich. — Scientists at Michigan State University’s Global Observatory for Ecosystem Services – or GOES – have a treasure trove of resources many of their peers would envy.
9-Apr-2007,LIVERMORE, Calif. ?How effective are new trees in offsetting the carbon footprint? A new study suggests that the location of the new trees is an important factor when considering such carbo...
Killing two birds with one stone: Transferring knowledge to fight poverty and land degradation（图）
gum arabic land
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2007/3/28
Rome, 5 March 2007 - With help from FAO, farmers in six sub-Saharan countries have been able to increase their income from the sale of gums and resins and to restore degraded land.
On Sunday and Monday, March 11 and 12, Dean Jack Saddler travelled to Rome for the 18th Session of the Food and Agriculture Organization of the United Nations (FAO) Committee on Forestry. Dr. Saddler ...
Global report cites progress in slowing forest losses
forest management biological diversity
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2007/3/28
13 March 2007, Rome – A number of regions of the world are reversing centuries of deforestation and are now showing an increase in forest area, according to FAO's State of the World’s Forests report, ...
03-01-2007，TALLAHASSEE - Florida Agriculture and Consumer Services Commissioner Charles H. Bronson today warned of a higher wildfire threat this spring due to warm temperatures and a lack of widesprea...