生态种的

Acuteserrata and Fagus engleriana are important species in the temperate and subtropical middle-elevation mountainous areas of China.

acuteserrata和米心水青冈是广泛分布在我国暖温带和亚热带山地中海拔地段的主要建群种，对水土保持和维持生态系统稳定具重要意义。

The sugar beet cyst nematode,Heterodera schachtii,is one of the important quarantine nematodes in China as well as in the world.

本文应用MAXENT与GARP两种生态位模型对甜菜孢囊线虫在中国的适生性进行了风险分析和预测。

Being a protective tillage, the no-tillage means getting rid of not only the tillage before sowing, but also the intertill after sowing, and leaving the plant residue after harvesting.

中文题名稻田自然免耕体系土壤微生物及有机质周转研究副题名外文题名 Study on the microbial characteristics and the turnover of organic matter in paddy soil under a long-term no-tillage and ridge culture 论文作者张磊导师谢德体教授魏朝富研究员学科专业土壤学研究领域\研究方向土壤生物和生态学位级别博士学位授予单位西南农业大学学位授予日期2002 论文页码总数92页关键词稻田土壤生态学土壤有机质土壤微生物免耕馆藏号BSLW /2003 /S154 /1 免耕制是一种保护性耕作制，指同一块土壤在一定年限内，不仅免除播前耕作，也免除播后中耕，作物收获后直接将作物残茬留在土壤中的耕作方式。

All these suggest that Juncus Effuses could be used as an indicator of critical value of the toxic effects of the heavy metals, Cu, Cd, Pb, Zn and As, in soil, set on the basis of the upper limit of Grade Ⅱ criteria of the State Soil Environmental Quality Standard.

通过应用综合生态环境效益法，以灯心草为指示植物可以将土壤环境质量二级标准上限值设定为土壤中5种重金属的临界毒性效应值。

According to basic principle of microbic metabolism and ecological relation, the newtype nonalcoholic beverage is produced by use of malt, rice and black tea by Saccharomycescerevisiae, Lactobacillus acidophilus and Acetobacter suboxydans.

以大麦芽、大麦和大米为主料，优质红茶为辅料，依据微生物生理代谢与生态的基本原理，选择了三个菌种混合发酵，开发了一种新型发酵无醇饮料。

According to the site condition and biological characteristics, Bermudagrass, Bahiagrass and weeping lovegrass were chosen to hydroseed 8 different type turf in south slopes of red soil in Shenzhen. The turfgrass seeds were sowed singly or mixedly according to different species and ratios. The ecological, social and economical effectiveness of the turf was studied systematically, and AHP structure model was used to assess different turfs.

根据立地条件和生物学特性，选择狗牙根、百喜草和弯叶画眉草在探圳市赤红壤阳坡上单独或按不同比例混合喷建了8种不同类型草坪，系统地研究了它们的生态、社会和经济效益。

As a new type biological pesticide, metarhizium anisopliae （ L8500） causes no pollution, is environmentally compatible, has a low cost, clear pesticidal effects, and good economic, social and biological benefits and good prospects for promotion and application.

绿僵菌（ L8500）作为一种新型生物杀虫剂，无污染，环境相容性好，成本低，杀虫效果明显，具有良好的经济、社会、生态效益和推广应用前景。

Peanut or rice wereplanted in the large-scale weighing Lysimeter,pit plots,and standard runoff plots,wherehigh,moderate,and low soil moisture levels were designed as 3 treatments,assemblingwith some instruments such as time domain reflectometry,portable photosynthesis system,dew point microvoltmeter,and porometer.

季节性干旱缺水严重制约着我国红壤区农业的持续发展。1999～2000年在中国科学院红壤生态实验站，利用大型称重式蒸渗仪、测坑小区和径流小区，配合时域反射仪、光合蒸腾仪、水势仪及动态气孔阻力计等仪器，设计高、中、低3种土壤水分处理，进行了花生和早晚稻试验。

Ecological footprint is a kind of new method of quantifiably measuring the extent of human using of nature resouree.

生态足迹是一种定量测量人类对自然资源利用程度的全新方法。

The ramet biomass,height,leaves and coverage of A.lancea were studied.

研究4种生态环境下苍术的株生物量，株高，茎粗，叶片数和盖度。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！