查询词典 ecosystems

The effects of fire on ecosystems are complex, ranging from the reduction or elimination of aboveground biomass t...

火对生态系统的影响是复杂的，范围也很广，从减少地上部分生物量到对地下部分物理性质、化学性质、微生物降解过程和细根系的生长。

By combining the experiment, field observation and data collection with SWAT model simulation, the water budget in different types of land use (forest and grass ecosystems, orchard and crop ecosystems) were calculated by SWAT model. Then the water circulation and water budget in the following years were predicted and the main factors that influenced the water budget in hilly region of red soil were analysised.

本研究采用室内测定、野外观测、资料搜集与模型模拟相结合的方法，应用SWAT模型研究了赣东北红壤丘岗区不同土地利用方式的水量平衡，并对林草系统未来几年的水量平衡进行了预测，分析了区域水量平衡的影响因子。

Chemosynthetic ecosystems include hydrothermal vents, cold seeps, whale fall and other highly reduced ecosystems.

深海化能合成生态系统主要包括热液、冷泉、鲸骨生态系统以及由其他高度还原型生境形成的生态系统。

So it is very important that we restore vegetation ecosystems In E＇jina basin and it is very significant for restoration of vegetation ecosystems to determine the position of plant＇ s underground microhabitat.

应用额济纳盆地的野外调查与室内实验数据，分析了3类植物群落结构（草本＋灌木组合、灌木＋乔木组合及草本＋灌木＋乔木组合）中的土壤过氧化氢酶活性曲线。

Future studies are recommended to compare the impacts across multiple scales and multiple ecosystems; intensify mechanical studies of the impacts; link the impacts on biodiversity and ecosystem processes; and explore the mutualistic interactions between soil ecosystems and exotic plants.

今后，加强多尺度和多生态系统的比较研究、机制性研究、生物多样性和生态系统过程的整合性研究及土壤生态系统对植物入侵的反馈研究是评价外来植物入侵对土壤生态系统影响的发展趋势。

Eleventh Five-Year" plan to support the National Science and Technology key project of "regional agro-ecosystems of biological control of pests and demonstration of key technologies issue 3: Insecticidal microbial agents and their coordination to improve the application of key technologies for China's fruit and vegetable rice in southern China, North China cotton-wheat corn, East China tea rice dishes regional agricultural ecosystems Noctuidae pests, pest钻蛀, borers and other important pests, recommend the use of Bacillus thuringiensis to improve the preparation and recovery agent.

十一五国家科技支撑计划重点项目《区域农业生态系统害虫生物防治关键技术与示范》课题3：杀虫微生物制剂的改良及其协调应用关键技术针对我国华南稻果菜、华北棉麦玉米、华东稻菜茶区域农业生态系统中的夜蛾科害虫、钻蛀性害虫、螟虫等重要害虫，建议使用改良苏云金杆菌和复配制剂等。

This volume reconfirms the diverse and unpredictable roles that non-native species assume as they invade new ecosystems: destruction of vital crops and forests, major damages to ecosystems leading to loss of biodiversity, soil erosion, and water loss.

当他们侵入新生态系统时，这卷再确认非本地种类假装的完全不同和无法预言的角色︰至关重要的庄稼和森林的损坏，主要的对生态系统的损害导致生物 Living beings 多样性，土壤腐蚀和水损失的损失

Ecosystems and palaeogeography of the Earth surface system were strongly, directly or indirectly, affected or reformed by those contemporaneous geological events, and for surviving the biotas had to change themselves and to radiate to adapt the affected ecosystems or palaeogeography.

地球表层重大地质事件直接或间接地控制或改造着地球表层古地理和古生态环境，生物群只得调整自身去适应环境和生态背景的改变。

Through strengthening natural forest conservation and nature re-serve management, continuing key eco-protection projects, establishing important ecosystems, and stepping up natural ecological restoration, by 2010 some 90 percent of typical forest ecosystems and key national wildlife species will be under effective protection; nature reserves will account for 16 percent of the national territory; 250,000 sq km of land suffering from water and soil erosion will have been improved; 300,000 sq km of land will have been ecologically restored; and 22 million ha of desertified land will have been put under control.

通过加强天然林资源保护和自然保护区的监管，继续开展生态保护重点工程建设，建立重要生态功能区，促进自然生态恢复等措施，到2010年，力争实现90%左右的典型森林生态系统和国家重点野生动植物得到有效保护，自然保护区面积占国土总面积的比重达到16%左右，综合治理水土流失面积25万平方公里，实施生态修复面积30万平方公里，治理荒漠化土地面积2200万公顷。

The water and heat balance of desert ecosystem is a key point of climate and micro-climate formation and its changing mechanism, and it is important to keep the current ecosystems steady and to recover the retrograde ecosystems, especially desert ecosystem.

荒漠生态系统水热平衡问题是研究气候和小气候形成及其变化机制的重要问题，也是维持现有生态系统平衡稳定以及退化生态系统恢复的关键，而且对防治荒漠化起着重要作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。