1) tillage measure
耕作措施
1.
Effects of different tillage measures on upland soil respiration in Loess Plateau
不同耕作措施对黄土高原旱地土壤呼吸的影响
2.
This article obtains from the runoff energy,in the room in the artificial rain experiment foundation,analyzed the slope tillage measure to the runoff energy reduction function.
从径流能量入手,在室内人工降雨试验的基础上,分析了坡面耕作措施对径流能量的削减作用。
3.
This paper analyses the benefits to soil and water conservation of tillage measures, with reference to rainfall influences.
在室内人工降雨试验基础上,分析了坡面耕作措施的蓄水保土效益。
2) tillage practices
耕作措施
1.
Effects of different tillage practices on fungi community structure and ecologic characteristics in loess soils;
不同耕作措施对土壤真菌群落结构与生态特征的影响
2.
The effects of management practices in farmland including tillage practices, nitrogen-fertilizer and water management on nitrate-nitrogen transport in soil were reviewed.
从农业耕作措施、氮肥管理、水管理等田间管理措施对土壤硝态氮迁移的影响方面进行了综述,指出了研究中存在的问题与发展趋势。
3.
Field ohservation of roil wind erosion in farmland under different tillage practices inBashang area, Hebei province was conducted.
据此认为,在农田防护林体系仍不完善的河北坝上高原农垦区,应采作留茬深耕等耕作措施,以有效地控制土壤风蚀,减轻风蚀危害。
3) tillage measures
耕作措施
1.
Soil and water conservation effects of protective tillage measures on sloping farmland
坡耕地保护性耕作措施的水土保持效应
2.
The tillage measures had the effects of evaporation control,runoff reducing and infiltration enhancing respectively.
本文针对黑龙江省西部半干旱区坡耕地干旱和水土流失并存的实际问题,选取了少耕深松、免耕秸秆覆盖、垄向区田、覆膜+垄向区田、深松+垄向区田、深松+覆膜+垄向区田等几种保护性耕作措施,以甘南县为试验基地,通过2006、2007、2008三年的野外径流小区试验,天然降雨和人工降雨相结合,进行了不同耕作措施、不同降雨强度、不同前期土壤含水量条件下的坡耕地降雨径流、入渗、土壤水再分布、土壤储水量、水量平衡和土壤侵蚀特征及其模拟研究。
4) tillage systems
耕作措施
1.
Adaptation research of APSIM model under different tillage systems in the Loess hill-gullied region
APSIM模型在黄土丘陵沟壑区不同耕作措施中的适用性
2.
This study determined infiltration into soils on black farmland under different tillage systems by long-term experiment.
应用田间长期定位试验,研究了5种耕作措施对东北农田黑土入渗速率的影响。
3.
In a long-term experiment in Northeastern China, the bulk density and soil water of the black farmland under different tillage systems were determined.
通过田间长期定位试验,探讨了耕作措施对农田黑土耕层水分的影响。
5) cultivation
[英][,kʌltɪ'veɪʃn] [美]['kʌltə'veʃən]
耕作措施
1.
Based the observation of surface relative elevation(SRE) from some typical fields,the effect of cultivation and surface irrigation on the spatial and temporal variability of microtopography at different field-geometry is(evaluated) by means of statistical methodology.
畦面微地形时空变异分布状况对畦灌性能的影响较为显著,该文依据从典型试验畦块获得的畦面相对高程实测数据,借助统计学方法分析评价田间耕作措施和地面灌溉对畦面微地形时空变异分布状况的影响。
2.
Results indicated that soil water redistributions for different cultivations appeared similarly and the content of soil water within 10 cm of soil surface quickly decreased after infiltration.
结果表明,对于不同耕作措施,降雨后土壤水分再分布动态变化规律相似,即土壤水分入渗后,表层0—10 cm内土壤含水率急剧降低;20—60 cm的土壤含水率开始有增大的趋势,随后逐渐减小;60 cm以下的土壤含水率略有变化。
6) cultivation measures
耕作措施
1.
The paper analyzes the effect of three cultivation measures of contour cropping,manual excavation and manual hoeing to the reduction of run-off energy and erosion based on office artificial rainfall testing.
在室内人工降雨试验的基础上,分析了等高耕作、人工掏挖和人工锄耕3项耕作措施对径流能量的削减作用和减蚀作用。
补充资料:耕作措施小气候效应
耕作措施小气候效应
microclimatic effects of ploughing
“en夏zuo euoshi xiaoqihou xiaoying珊作箱她,J、气恢双巡气m ICroellmatlceffeets of Ploughing)农田耕作后的一定时间内,由于地表性质和结构的改变所引起的农田小气候变化。运用合理的耕作措施,可以调节土壤的水、热状况,为作物提供良好的耕层条件,以利于作物的生育,这对于用地养地和提高作物产量有着重要意义。 耕耙的小气候效应农田耕耙可使土壤表层粗糙,反射率降低,地面收入的太阳辐射和地面有效辐射增加。因此,就地表的辐射收支差额而言,耕耙地与未耕耙地两者并无显著差别。耕耙使耕层疏松,空气含量增加,从而使土壤热容量和导热率减小。热容量小的耕耙层,得热后升温与失热后降温的程度加剧,导热率小的耕耙层,同土壤下层之间的热量交换能力减弱。这样,白天或者暖季热量积聚于耕耙层,温度比未耕耙地高,但耕耙层以下土层温度比未耕耙低;夜间或冷季情况正相反,耕耙层以下的土层向耕耙层愉送的热量比未耕耙地的少,因此温度比未耕耙地的低,但是耕耙层以下土层的温度比未耕耙地同深度的土层高。在早季,土壤经过耕耙,切断了耕耙层及其下层的毛细管联系,下层的水分通过毛细管作用只能上升到耕耙层同底土连接的地方,不易上升到地表,因而减少了下层土壤水分的损失;又由于耕耙层土壤孔隙变粗,毛细管作用减弱,水分传导不畅,因而减缓了土层的蒸发强度;另外,耕耙层内水分是以汽态扩散的方式逐渐下降,使表土变干,并形成了干土层,对下层土壤水分的蒸发可起到抑制作用。所以,耕耙表层土壤有散湿作用,而对深层土壤则具有明显的保墒效应(表1)o但是在雨季,土壤处于湿润状态时,耕耙的效应就和上述情况不同。这时耕耙层的土壤,由于透水性能增强,土壤蓄水能力提高,在一定时间内耕耙层的土壤湿度比其下层的高,并且比未耕耙的上壤湿度也高(表2)o为了尽量把降水保蓄下来,采取适当耕耙措施,如在作物的行间中耕以及休闲地的伏耕都将起到保存底墒的作用。以耕耙为中心的抗早保墒措施,在中国北方地区效应十分明显。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条