查询词典 vegetation

In recent years it has been exploited to be a famous scenic spot. To avoid vegetation degradation resulting from human activities and strengthen plant protection, Carpinus turczaninowii communities in great valley were selected as our research subject. The species diversity, interspecific association and correlation, niche breadth and niche overlap in these communities were studied using quantitative methods.

为了加强对该地区植被的保护，避免因人为干扰而导致的植被破坏和退化，本文以太行山南段的小叶鹅耳枥群落为研究对象，在分析了群落主要特征的基础上，应用数量生态学方法，分别从群落的物种多样性、优势种群的种间关系和生态位三个方面，客观定量地分析了植物群落的生态关系。

Previous vegetation investigation in Dinghushan 20ha permanent plot which was established at 2005, suggested that Castanopsis chinensis is the most important species in plot.

在2005年建立的鼎湖山20ha大样地植被调查研究中表明，样地内锥栗在样地植被中的重要值最大，是该地区森林群落构成的主要成分，其分布格局的变化可能直接影响到整个群落的格局演化。

The Eco-physiological Characteristics of Dominant SpeciesArtemisia halodendron, Artemisia scoparia and Cenchrus calyculatus were the dominant species in three types of vegetation.

优势植物种生理生态特性三种植被类型的优势种分别为差不嘎蒿、黄蒿和光梗蒺藜草。

These vegetation types are (1) Yushania niitakayamensis thicket (2) Juniperus squamata-Rhododendron pseudochrysanthum thicket (3) Abies Kawakamii forest (4) Tsuga chinensis forest (5) Abies Kawakamii-Tsuga chinensis forest (6) Picea morrisonicola forest (7) Chamaecyparis formosana forest (8) Pinus taiwanensis forest and (9) Evergreen broad-leaved forest.

使用双向指标种分析法与列表比较法将100个样区切分成9个植被类型，分别为玉山箭竹矮灌丛(6)、玉山圆柏-玉山杜鹃灌丛(3)、台湾冷杉林(7)、台湾铁杉林(3)、台湾冷杉-台湾铁杉林(9)、台湾云杉林(2)、桧木林(4)、台湾二叶松林(12)、针阔叶混合林(41)、常绿阔叶林(13)。

They also showed that large Cladocera size is more important than their number for efficient phytoplankton control and when cladocerans are large enough, they can considerably restrain phytoplankton growth, including bloom-forming cyanobacteria, even when submerged vegetation is not restored.

同样，它们也显示了大型枝角类的体型相对于它们的数量就对浮游植物的有效控制上意义更大。当枝角类足够大时，它们能够限制浮游植物的生长，包括蓝藻的爆发，即便当沉水植被没有及时恢复。

Supervised and unsupervised image classification were applied to the study area TM image and t o the paddy field TM image. And the early rice areas were calculated by each met hod. Using the proposed methodology improved the quantitative accuracy of ear ly rice area estimated up to 93.98%, whereas it was 82.83%when image classific ation was used only. The extracted information from the c lassification is belonging to the early rice and not to any other vegetation. Si nce the GIS database is available, the method is easily applicable to any new RS images.

不同方法比较结果表明：非监督分类法不能用于提取丘陵山区的水稻种植面积；只用TM资料估算龙游县早稻面积，与统计数据相比，平行六面体分类法、最大似然分类法精度分别达到82.83%和59.95%；而用GIS 与TM资料集成技术对水田分布图进行分类估算早稻面积，平行六面体分类法、最大似然分类法的估算精度分别达到93.98%和60.65%，所以利用平行六面体分类法对南方丘陵山地早稻种植面积估算是可行的。

The geographical environment elements to form weather disasters in yunnan include low latitude plateau,approaching tropical oceans,complicated topographical features,cliffy mountain,few vegetation,concentrated rainfall,complicated geological structure and strong fault actions.

由于云南复杂的低纬高原地理环境，多样的局地气候背景，特殊的地貌植被状况以及同时受东亚、南亚两支季风的共同作用，形成了鲜明的区域气象灾害特征[1，2]。1 云南气象灾害的特征1.1 种类多、频率高、重叠交错云南自然地理环境特殊，7种气候带交错分布，气候资源丰富，立体气候明显，地域差异大。

How to collocate , let vegetation protect slope off limits , is the new problem in the actual project .

如何布置，使植被更大限度地发挥&固滩护堤&的作用，是生产实际中提出的新问题。

The results of separating distance among the woodland, cultivated crops and seasonal green vegetation are not exactly. The phenomenon of confusional classification is in evidence. The woodland, cultivated crops and brush need further classification.

在分类结果中，水体的分离效果最好，与其他覆被之间的Bhattacharya距离达到2.00，分类精度在90%以上，疏林地，农地，灌丛的分离效果不理想，混分现象明显，需进一步分类。

And there are not the existance of seedlings in coppiced shrub of Quercus liaotungensis. So, the shrub type remained two coppiced shoots is the best to recovery the forest vegetation, improve ecological-serve function immediately.

调查过程中没有发现实生苗的存在。2克隆株/丛类型在恢复当地的森林植被、迅速改善区域生态服务功能方面是最好的调控措施。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。