研究了福建省10个耕作土壤耕层不含钾矿物。
The potassium-bearing minerals in surface soils of 10 cultivated soils in fujian province were studied.
研究者称，保护性耕作的土壤比传统耕作土壤更易渗入雨水。
The researchers say tillage makes soil less resistant to being broken apart by raindrops than plowed soil.
耕作土壤表面空气动力学粗糙度是评价土壤可蚀性的重要指标。
Aerodynamic roughness length is a important feature to easement soil resistance to wind erosion.
耕作土壤表面空气动力学粗糙度是评价土壤可蚀性的重要指标。
Aerodynamics roughness length is one of important indexes for estimating topsoil erosion.
该研究还指出了，当耕作土壤颗粒与空气接触，土壤有机质就会在氧化过程中流失。
The study also noted that when tilled soil particles come in contact with air, soil organic matter is lost through the process of oxidation.
结果表明，总体上我国实测点位（或区域）耕作土壤平均有机碳密度在此期间略有增加。
The results show that the average organic carbon density in cultivated soils has experienced a carbon gain during the period.
结果表明，土壤侵蚀造成表层耕作土壤的物理性能下降、养分流失和水分入渗能力降低。
The results show that the soil erosion on slope not only bring about soil nutrients lost, but also cause the soil physical property damaged, soil infiltration capability weakened.
提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。
A new simulation strategy using the Discrete Element Method (DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.
生食通常来自树上（避免了耕作土壤的损失），在环境方面有特殊的优势，只需简易包装，无需烹饪 。
Raw food has particular environmental advantages in that it often comes from trees (avoiding soil loss from tilling) and requires little packaging and no cooking.
实践证明，该方法能使复垦土壤有效保持类似原耕作土壤的层次结构特点，并能达到复垦地标高的要求。
The practice have proved that the methods can make the reclaimed soil keep a similar characteristics to that of original cropped soil, and meet the requirements for elevation of reclaimed land.
基于大田土壤水分入渗试验与相关参数的测定，分析了耕作土壤入渗能力衰减过程，探讨了耕作土壤入渗能力衰减机理。
Based on soil water infiltration testing and related parameters measured in field, tillage soil water infiltration capacity attenuation process was analyzed and the mechanism was discussed.
在11处土壤中，免耕系统中储存的碳水平在5处超过同样条件耕作土壤中储存的碳水平，但是仅仅早表面层（0-10cm层）如此。
Stored carbon levels in no-till systems exceeded those of the ploughed systems in five out of 11 soils, but only in the surface layer (0–10 cm depth).
集约耕作使土壤变得贫瘠。
刀耕火种的传统耕作方式已经使土壤枯竭了。
Traditional slash and burn farming methods have exhausted the soil.
在这种耕作方法中，种子和肥料是通过地面上的小切口进入土壤的。
In this method of farming seeds and fertilizer are put into the soil through small cuts made in the surface of the ground.
刀耕火种的耕作方式对土壤是有好处的，只要它不完全烧掉所有的植被，只留下烧焦的木头。
Slash-and-burn farming can be good for soils provided it doesn't completely burn all the vegetation, and leaves behind charred wood.
这意味着表层土壤几只含有少量长期成功耕作所必需的成分。
This means topsoil contains few of the ingredients needed for long-term successful farming.
频繁的耕作往往会破坏土壤的有机平衡，逐渐导致土壤退化和生产力不足。
Frequent tillage can often destroy the organic balance of soils resulting in soil degradation and poor productivity over time.
另一项最新研究发现，单独一次耕作不会对通常不耕作的土地产量或土壤结构造成破坏。
Another recent study found that a single tillage does not harm yield or soil structure in land that is normally not tilled.
在常规耕作条件下，春季作物对土壤水份含量的响应要比免耕地大得多。
Under conventional till, crop response to spring soil water content was considerably greater than under zero till.
耕作要等到土壤充分温暖干燥。
过度放牧（这同样也被“传统的”耕作所广泛采用）导致了土壤浸蚀，并把肥沃的草原变成了沙漠。
Overgrazing (again, widely practised by "traditional" cultures) causes soil erosion and turns fertile pasture into desert.
杨树较快的树叶分解速度和生物量增长可大大提高曾经是不宜耕作的沙质土的土壤肥力。
Faster leaf decomposition and biomass growth have created a much more fertile soil on once sandy land, which was not always suitable for cultivation.
结束耕作有助于稳定土壤，而停止灌溉则有利于缓解水资源短缺问题。
The end of ploughing helps stabilise the soil, while stopping irrigation alleviates water shortages.
耕作还会将土壤中的二氧化碳释放到大气中，而免耕能够保持住土壤中的碳，并且避免机械设备释放吸热气体。
Tilling also releases carbon dioxide from the soil into the atmosphere. No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.
高兰尼也在改进CQESTR模型，也就是一种电脑模型，这种模型能够模拟气候、土壤类型、耕作制度和其他有关土壤中有机碳的管理措施。
Gollany also is upgrading CQESTR, a computer model that simulates the effects of climate, soil type, cropping systems, and other management practices on soil organic carbon.
现在，仍有许多农田用这种方法耕作，而且土壤侵蚀度也确实降低了。
There are still some fields planted this way and they do decrease erosion.
与常规耕作方式相比，随着秸秆覆盖量增加，土壤水分增加。
Compared with conventional tillage method, the mulch tillage practice increased soil water content.
这些方法包括管理土壤肥力和减少耕作。
The methods involve soil fertility management as well as reduced tillage.
有些土壤不适于耕作。
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