搜索结果: 76-90 共查到“知识库 森林保护学”相关记录544条 . 查询时间(4.54 秒)
杨树炭疽病菌对多菌灵及3种DMIs杀菌剂的敏感性
杨树炭疽病 胶孢炭疽菌 炭疽菌 多菌灵 C-14α-脱甲基酶抑制剂(DMIs)
2016/11/9
采用菌丝生长速率法，测定了可引起杨树炭疽病的59株胶孢炭疽菌和4株炭疽菌对多菌灵、苯醚甲环唑、戊唑醇和三唑酮4种杀菌剂的敏感性。结果表明：59株胶孢炭疽菌对多菌灵、苯醚甲环唑、戊唑醇和三唑酮的EC50值范围分别在0.037 1~0.130 1、0.102 5~1.680、0.069 1~1.917及3.053~38.59 μg/mL之间，平均EC50值分别为（0.066 4±0.013 1）、（0...
红外相机技术在北京雾灵山自然保护区兽类资源调查中的应用
红外相机 北京市雾灵山 相对丰富度 兽类G-F指数
2016/9/5
为了调查北京市雾灵山自然保护区兽类资源情况，自2013年7月至2014年5月，在雾灵山32个位点处布放红外相机进行系统调查，累积相机工作日3630天，共拍摄到兽类有效照片494张，鉴定出10种动物，包括：狍（Capreolus capreolus）、斑羚（Nemorhaedus goral）、猪獾（Arctonyx collaris）、岩松鼠（Sciurotamias davidianus）、野猪...
Comparison of two Coniochaeta species (C. ligniaria and C. malacotricha) with a new pathogen of black pine needles ?Sordaria macrospora
Ascomycota morphological characteristics phylogenetic analysis
2016/2/22
A new pathogen, Sordaria macrospora, isolated from damaged needles of black pine (Pinus nigra) causes discolouration, brown spots, blight symptoms, and necroses spoiling aesthetic value. Two species, ...
Averting biodiversity collapse in tropical forest protected areas
biodiversity collapse protected areas
2015/11/13
The rapid disruption of tropical forests probably imperils global biodiversity more than any other contemporary phenomenon1–3. With
deforestation advancing quickly, protected areas are increasingly
...
Root system development in naturally regenerated Douglas-fir saplings as influenced by canopy closure and crowding
natural regeneration competition shading physical tree stability
2015/9/15
Documented information on the growth dynamics and related silvicultural manipulation of naturally
regenerat ed Douglas-fir beneath a canopy shelter is scarce. We hypothesized that long regeneration ...
MONITORING TROPICAL FOREST FROM SPACE: THE PRODES DIGITAL PROJECT
Terrestrial Monitoring Land Use Change Detection Segmentation Classification Forestry GIS
2015/7/29
This paper presents the results of a new methodological approach to identify and to estimate deforested areas. The work refers to the
PRODES DIGITAL PROJECT, which develops an automatic procedure to...
Australia’s transition to management of myrtle rust – Short Communication
Incursion Plant Pest Transition Management
2015/5/18
Puccinia psidii sensu lato was detected in Australia in 2010 causing myrtle rust. A nationally cost-shared
eradication program was conducted based on well-established emergency response arrangements...
Monumental trees and their existence value: case study of an Italian natural park
contingent valuation method Giant hollies
2015/5/18
The paper deals with the evaluation of the existence value of monumental trees in a protected area.
Financial resources to be destined for protection interventions have been decreasing more and more...
Models for predicting aboveground biomass of European beech (Fagus sylvatica L.) in the Czech Republic
biomass function temperate forests
2015/5/18
We developed optimal models for predicting the aboveground biomass of European beech (Fagus sylvatica L.)
applicable to the national forest inventory data of the Czech Republic. The models were base...
Beech (Fagus sylvatica L.) bark necrotic damage as a serious phytopathological problem in Central and Southeastern Europe
Bulgaria index of necrotization Slovakia
2015/5/18
The results of long-term monitoring of beech bark necrotic damage in a mature stands in Czech Republic, Slovakia, Poland, Hungary, Romania, Serbia and Bulgaria are presented in paper. Overall, 10,863 ...
Phenotype features in juvenile populations of Picea abies and their growth
anatomy height growth needle types
2015/5/5
The young populations of Norway spruce (Picea abies) can be evaluated in terms of both variability in
the quantitative characteristics and share of different phenotypes according to the needle types...
Ca/Al ratio in Norway spruce fine roots on monitoring plots in the Czech Republic
aluminium toxicity forest health soil acidification
2015/5/5
This article is focused on the evaluation of the Al/Ca ratio in fine roots of Norway spruce on the plots
belonging to the ICP Forests monitoring programme in the Czech Republic.
Establishing windbreaks: how rapidly do the smaller tree transplants reach the height of the larger ones?
landscape rehabilitation arable soil
2015/5/5
The aim of this study is to identify a period of time over which smaller, less costly tree transplants can
reach the height of larger tree transplants and thus offset their performance. The followin...
Spring phenology of cockchafers, Melolontha spp. (Coleoptera: Scarabaeidae), in forests of south-western Germany: results of a 3-year survey on adult emergence, swarming flights, and oogenesis from 2009 to 2011
light trap soil eclector maturation feeding
2015/5/5
Cockchafers are among the most dreaded insect pests in many European countries, causing economic
losses in agriculture, horticulture and forestry. In forests of south-western Germany, populations of...
Comparison of different forest regeneration methods after windthrow
target tree species pioneer tree species
2015/5/5
The prosperity of various forest regeneration methods was evaluated on the prepared windthrow area
established in 2010 in a previously allochthonous coniferous stand growing in mid-elevations of the...