Certain irrigation practices degrade soil quality and reduce agricultural productivity.
某些灌溉措施会降低土壤质量，降低农业生产力。
There's unpredictable weather, changes in soil quality, and the ever-present possibility that pests and diseases may pay a visit.
天气不可预测，土壤质量发生变化，害虫和疾病随时都可能出现。
Overall, organic farms tend to store more soil carbon, have better soil quality, and reduce soil erosion compared to their conventional counterparts.
总体而言，与传统农场相比，有机农场往往会存储更多的土壤碳，土壤更优质，并减少土壤侵蚀。
Soil quality is not high, for the sand and sandy loam .
土壤品质不高，为砂土和砂质壤土。
The soil quality indicators and the evaluation methods were reviewed.
综述了土壤质量评价指标体系和土壤质量评价方法。
The fine particle loss in the soil is an important issue of soil quality degradation.
土壤中细颗粒的流失是土壤质量恶化的重要表现之一。
Excessive fertilization can cause soil quality decline and serious environment problems.
过量施肥会使土质退化并带来严重的环境问题。
The research of soil quality is becoming the focused topic of the international pedology.
土壤质量的研究正逐步成为国际土壤学的研究热点。
The changes of soil quality are the results of both natural processes and human activities.
土壤质量演变是自然过程与人类活动共同作用的结果。
In the process of soil quality change, soil microbe is a relatively better maker for the change.
在土壤质量的演变过程中，土壤微生物具有相对较高的转化能力。
Under the irrigation conditions at present, the main limited factor of productivity is soil quality.
在现有灌溉条件下，土壤质量是制约生产力的主导因子。
The soil DOC could be as a sensitive index of soil quality responding with the various agricultural practices.
土壤水溶性碳可以作为农业生产管理对土壤质量影响响应的敏感指示。
The correlation between arable land expansion and soil quality was very close and the combine entropy was 0.790.
耕地扩张过程与土地质量空间相关关系密切，其联合熵达0.790。
Soil quality is the comprehensive expression of soil fertility quality, environment quality, and healthy quality.
土壤质量是土壤肥力质量、环境质量和健康质量的综合体现。
Other organic tactics for boosting soil quality include cover crops (aka "green manure"), crop rotation and composting.
其他增大土壤肥力的策略包括作物肥田(亦作“绿肥”)、轮种和堆肥。
Soil organic carbon dynamics can be reflected to some extent by the soil quality magnetic susceptibility and root content.
土壤磁化率、根生物量在一定程度上可以反映土壤有机碳动力学过程。
Soil aggregate composition and stability are closely related to soil quality, soil erosion and agricultural sustainability.
土壤团聚体组成及其稳定性与土壤质量、土壤侵蚀和农业可持续性有着密切联系。
The results show that the soil quality is poor, with low effective moisture and nutritional elements, without no structure.
分析结果表明，排土场土壤质地差、无任何结构、渗透性差、土壤坚实、有效水分及营养元素含量低。
Along with the deterioration of soil quality, it is important to look for a sensitive index on marking soil quality dynamics.
土壤质量日益衰退，寻找能够准确标示其变化的敏感指标非常重要。
The soil type, cause of soil formation and soil quality changes of Holocene loess-soil sequence have been clearly distinguished.
通过本文各指标的研究，进一步认识了汾渭平原全新世土壤的类型、成因与质量演变。
Soil enzymes may be one potential soil biological index of soil quality for its sensitivity, specificity and combination property.
土壤酶的敏感性、专一性和综合性等特点使其可以作为一个反映土壤质量的生物学指标。
The soil quality of the dry arable lands in Qianxi county was evaluated to provide the basic data for the formulation application.
为了给测土配方施肥提供基础数据，对黔西县项目区的旱耕地的土壤质量进行了初步评价。
The crop industry, which influences strongly on soil quality, has a close relationship with the natural environment including soil.
种植业与土壤等自然环境有着密切的关系，种植业强烈影响土壤质量。
Experts say the project will have to deal with dry conditions, poor soil quality and other realities of farming in southern Africa.
专家称这个计划将必须解决非洲南部的干燥气候、贫瘠的土地和其他农业问题。
This paper details the change characters of black soil quality, and analyses the natural and artificial factors of black soil degradation.
详述了近几十年来黑土资源质量的变化特征，分析了黑土质量退化的各种自然与人为因素。
The results showed: There were apparent changes of physical properties and nutrition content in the evolution process of city soil quality.
结果表明：城市土壤演变过程中土壤物理性质和养分含量发生了明显的变化。
Soil enzyme activity varied obviously with duration of vegetable plantation and could be cited as a sensitive indicator of changes in soil quality.
不同利用年限菜地土壤酶活性变化幅度较大，能够更为敏感的指示土壤质量的变化。
Classification standards of indicators for soil quality evaluation were put forward and the situations of soil property of Hebei Plain were discussed.
提出了河北平原土壤质量评价指标的分级标准，依据该标准对河北平原典型土壤样品进行了单因素评价。
According to relevant research and investigation, the declining tendency inthe growth of urban afforestation tree is largely due to soil quality in city.
在调查和研究中，我们发现，城市绿化树生长势衰弱的状态主要和城市土壤性质相关。
According to relevant research and investigation, the declining tendency inthe growth of urban afforestation tree is largely due to soil quality in city.
在调查和研究中，我们发现，城市绿化树生长势衰弱的状态主要和城市土壤性质相关。
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