soil salinization造句
例句与造句
- soil salinization and countermeasures in protected horticulture
设施园艺土壤的盐化与治理对策 - quantitative classification of soil salinization in the huang-huai-hai plain
近代黄河三角洲的滨海盐渍土及其开发利用 - an application of hydrological response units in assessment of soil salinization risks
随机分形在刻划储层非均质特性中的应用 - application of radial base function artificial neural network in investigation of soil salinization
径向基人工神经网络法在土壤盐渍化调查中的应用 - cause of formation and prevention and cure measure for secondary soil salinization in sheyang county of sichuan province
射阳县土壤次生盐渍化的成因及防治对策 - It's difficult to find soil salinization in a sentence. 用soil salinization造句挺难的
- the damage of soil salinization to service function of soil eco-environment is severe but its economic loss is not assessed yet
全省重度盐渍化土壤对生态环境损害造成的经济损失至少达140亿元(1996年币值)。 - we analyzed the main eco-environmental problems in this area, which are desertification, soil salinization, and vegetation degeneration
分析了塔里木盆地生态环境的主要问题为沙漠化、土地盐渍化和植被退化。 - the factors causing soil salinization include natural factors such as climate, hydrological and geological conditions, and human-made factors, such as irrigation patterns and cultivating system
盐渍化土壤类型主要为典型盐土、沼泽盐土、碱化盐土和干旱盐土。 - the largest and perhaps only real threat to sustainable agriculture comes from unchecked population growth and the resulting downstream effects such as changes in the climate, soil erosion, soil salinization, and soil nutrient depletion
持续农业所面临的最严重的威胁是无限制的人口增长以及随之带来的气候变化、土壤侵蚀、土壤盐渍化以及养分耗竭。 - on the basis of some research findings in recent years, the paper summarizes characteristics and causes of greenhouse soil salinization, and its effects on soil properties, including physical and chemical properties and microorganisms as well
本文根据近年来的相关研究进展，综述了设施土壤次生盐渍化的基本特徵、形成原因及其影响因素，并阐述了设施土壤次生盐渍化对土壤理化性质以及土壤微生物状况的影响。 - situated in northwest china, ningxia has the typical eco-environmental problems of west china such as water and soil erosion, soil salinization, land desertification, and so on, so that there is a sharp contradiction between the spatial development of urban system and the eco-environmental conservancy
宁夏地处我国西北部，具有西部非常突出的生态环境问题：水土流失、土地沙化、土壤盐渍化，因此城镇体系的空间发展与生态环境保护的矛盾极为突出。 - with the development of agriculture and industry and the enlargement of man's activity, the demand of water supply has increased in the region over the past decades . in the backward areas along the heihe river, there are a lot of ecological environmental problems such as lake dried up, sustainable, lowering of ground water level, water pollution, soil salinization and desertification, degradation of natural oasis and grassland, as well as sand storm
近几十年来，由于工农业的发展和人类活动的扩大，黑河流域中下游用水量的增加，黑河下游出现了严重的缺水现象，由此导致了一系列诸如河流湖泊干枯、地下水水位持续下降、水质恶化、植被退化、土壤盐碱化、土地风蚀化等环境问题。包气带水分、盐份的分布和运移对地表植被生长有着重要的影响。 - qualitative analysis on the effect of flood control and engineering safety-, seizing lots of water conservancy effective adjust storage . then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river, soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given, then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir
本文从青铜峡水库泥沙淤积入手，分析水库泥沙淤积特性和库区围垦堤开发利用淤积滩地的现状，对防洪安全及工程安全的影响、侵占大量的有效调蓄库容、造成同级流量下水库水位抬升水库回水上延、对沿岸及过河建筑构成影响、因水位抬升致使库区周边灌区地下水排水不畅乃至倒灌而造成土地盐碱化、对水库库区大量淤积滩地无序围垦造成旅游资源破坏等五方面影响的定性分析，提出库区围垦堤是水库水位抬升的重要原因。 - in order to prevent the deterioration of ecological environment, countermeasures from the aspect of water resources exploitation and utilization were proposed as following : to reduce groundwater table for preventing and eliminating soil salinization; to establish a powerful drainage basin management organization; to establish water-saving society; to carry on the additional investigation and water on environmental hydrogeology related to endemic disease
并从水资源开发利用角度提出了防治生态环境劣变的基本对策：降低地下水位，预防和消除土壤次生盐渍化；建立有实权的流域水资源管理机构；开源节流，以节流为重，建立节水型社会；开展全疆补充性的地方病环境水文地质调查研究工作。 - qingtongxia irrigated area, located in the hetao area of ningxia hui autonomous region, has had more than 2000 years pumping water from yellow river irrigating because there is an arid region, evaporating strongly, the groundwater depth of burial being shallow, especially in yinbei region, the perpendicular motion of groundwater being fairly acute, and the salt content of groundwater being detained in soil, which caused the soil salinization
青铜峡灌区位于宁夏黄河河套地区，已有两千多年的引黄灌溉历史，由于灌区地处温带干旱地区，蒸发强烈，地下水埋深浅，特别是银北段，地下水的垂直运动比较剧烈，地下水的盐分滞留于土壤中，造成土壤盐碱化。