|
Soil analysis showed that the two soils in Ezhou and Xiangyang counties were deficient in N, P, K, B and Zn.
|
|
|
土壤分析表明鄂州和襄阳两地供试土壤缺乏氮、磷、钾、硼和锌。 |
|
Soil and water conservation forest, which has special characteristics in distribution, layout, variety structure, management and soil conservation role, is different from general forest.
|
|
|
水土保持林不同于一般意义上的森林，其布局、配置、树种结构、经营及其发挥的水土保持能都具有本身的特殊性。 |
|
Soil at field capacity has a high water potential.
|
|
|
土壤处于田间持水量时通常有很高的水位。 |
|
Soil biodiversity has been one of the foci in the soil ecological research field.
|
|
|
摘要目前土壤生物多样性已成为土壤生态学研究的热点问题之一。 |
|
Soil biota can change the physical, chemical and biological characters of soil in different ways.
|
|
|
土壤生物以不同的方式改变着土壤的物理、化学和生物学特性。 |
|
Soil collembolan is deemed as an epitome of soil invertebrate and medium-sized soil animals because of its abundance in species and hugeness in biomass.
|
|
|
摘要土壤弹尾目昆虫作为无脊椎动物和中型土壤动物的典型代表，其具有丰富的种类和巨大的生物量，在重金属污染环境评估中具有十分重要的地位和独特的优势。 |
|
Soil conservation scheme should coincide with different period of project construction, and must be implemented separately in project construction, project check and acceptance, project operation.
|
|
|
该建设项目水保方案应与工程建设阶段相吻合，在工程实施、验收、运行等阶段均应开展相应的水保工作。 |
|
Soil enzyme activities were analyzed in forest, bush, badlands and Zanthoxylum bungeanum forest, the content of dissolved organic carbon also increased with the community of plant evolved from superior to inferior, and ceo-environment was declined by plan
|
|
|
并且通过对花江地区常绿阔叶林、灌丛以及荒草地与碳有关的土壤酶的活性研究，证明在群落从高级向低级演替过程中，酶的活性降低，活性有机碳的含量增加，生态环境恶化。 |
|
Soil erosion by rain and wind is a serious problem here.
|
|
|
雨和风对土壤的侵蚀在这儿是个严重问题。 |
|
Soil fertility could be evaluated objectively by principal component analysis.
|
|
|
土壤主成分分析能较爲客观地评价土壤肥力水平。 |
|
Soil incubation experiments were conducted in lab to delineate the effect of soil temperature and soil water content on soil respirations in broad-leaved/Korean pine forest(mountain dark brown forest soil),dark coniferous forest(mountain brown coniferous
|
|
|
为了研究土壤温度和土壤含水量对阔叶红松林(山地暗棕壤)、云冷杉暗针叶林(山地棕针叶林土壤)和岳桦林(生草森林土)的土壤呼吸的影响,于2001年9月在长白山进行了土壤实验.利用增加土壤样柱的含水量,将土壤含水量分为9％,、21％、30％、37％和43％5个等级,土壤样品分别在0、5、15、25和35℃的温度下保持24小时.阔叶红松林土壤在0(35℃范围内,土壤呼吸速率与温度呈正相关.在一定的含水量范围内(21％(37％),土壤呼吸随含水量的增加而升高,当含水量超出该范围,土壤呼吸速率则随含水量的变化而降低. |
