农业土壤的

However during 2001~2003, agricultural soil resources in this region decreased faster and showed a large disproportion among cities.

在遥感和地理信息技术支持下，对江苏沿江地区1984~2003年城镇扩张侵占农业土壤资源的特征进行了研究。

Soil salinization is one of the most important eco-environmental problems constraining the vegetation growth in the Yinchuan plain. It is the first obstruction for the regional agricultural production.

土壤盐渍化是制约银川平原内部植被生长最主要的生态环境地质问题，也是影响区域农业生产的第一障碍性问题。

The district is largely under intensive cultivation and agriculture is plentiful on the fertile alluvial soils.

该地区主要是根据精耕细作和农业丰富的肥沃的冲积土壤。

Four groups of experiments with different level--indoor simulation experiments, lysimeter experiments, pot culture experiments and field plot experiments-- were carried out to systematically study the environmental effects following the application of fermentation sludge to farmland in Tianjin area, which include soil salinity and potential contamination on ground water, and to primarily investigate the fertility of NovoGro in agricultural soil.

本论文通过四组不同层次的实验—室内模拟实验、渗滤实验、盆栽实验和小区实验，首次对酿造污泥农业利用可能产生的环境影响：1NovoGro对土壤的盐分效应；2NovoGro对地下水的潜在污染，进行了比较系统的研究，同时对NovoGro的肥效特性也做了初步的探讨。成功地解决了制约酿造残渣在天津地区农业利用的关键问题，为酿造污泥的综合利用提供了科学的依据。

Scientists in West Country, mainly in US and Canada, are seeking to sequester C in agricultural soil to offset their commitment to the Kyoto act.

以美国和加拿大为代表的发达国家正在热衷于研究农业土壤作为大气CO2 的"汇"。

The soil magnetism data is the groundwork of biomagnetism application in agriculture.

摘要土壤磁性数据将是生物磁学农业应用的基础。

Build database of edaphic nutrient space, mutation of hand-in-hand travel space is analysed, already became the premise that advances essence of life to allow agriculture to carry out and basis.

概要： 建立土壤养分空间数据库，并进行空间变异分析，已成为推进精准农业实施的前提和基础。

Three seriousenvironment problems of the soil erosion, desertification and salinization in the aridand semiarid area not only endanger the throughput and the stability of the dry landfarming, but also jeopard the country ecosystem security.

干旱、半干旱地区的水土流失、土地沙漠化、土壤盐碱化三大环境问题，不仅直接危害北方旱地农业系统的生产能力和稳定性，而且危及到了国家生态安全建设。

These deposits help build agricultural soils in the Bahamas and supply nutrients for plants in upper canopies of rain forests in Brazil.

这些存款帮助建立农业土壤在巴哈马群岛和供应养分的植物在檐篷上的热带雨林在巴西。

China faces "grave" soil pollution that jeopardizes the ecology, food safety, people's health and the sustainable development of agriculture, according to the State Environmental Protection Administration.

中国面临着严重的土壤污染，土壤的严重污染危机到生态，健康的食物，人们的身体健康和农业的可持续发展，根据国家土地保护管理局报道。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。