查询词典 soil conservation

Increases in water conservation are not distinct in soil and litter while distinct in the crown canopy.

珠防林幼林的综合持水能力因恢复措施以及林分类型不同而存在差异。

This paper evaluates the water conservation effects of the young forests of the Shelter Belt Program of the Zhujiang Valley from three hydrologic levels of crown canopy, litter layer and soil layer, based on field investigations and measurements.

本文在对珠防工程监测样地调查、测定的基础上，从林冠层、枯落物层和土壤层3个水文层次对珠防二期工程幼林的综合持水能力进行了评价。3 a-4 a生珠防林幼林的综合持水量在2 355.25-2 457.08 t/hm^2之间，比荒山高

Cusp-shaped trenching is China Agricultural University in the course of the study of conservation tillage in the introduction of screening test the Australian soil, and it has buried a strong ability to form a narrow groove (small amount of ground-breaking), ability to automatically back to earth, simple structure, reliable, low cost and so on.

尖角形开沟器是中国农业大学在保护性耕作研究过程中引进、试验筛选的澳大利亚开沟器，它具有入土能力强，沟形窄，自动回土能力强、结构简单、工作可靠，价格低廉等特点。

The reasons of water cycle being destroied are as follows: Because of the forest-steppe vegetation destroied and water and soil erosion, water resource conservation layer is destructed, and surface water and groundwater of mountainous areas is also damaged. Groundwater is damaged as a result of poor drainage of mining industry. The river channelization destroies surface water and wetland groundwater. The plain groundwater is damaged because of excessive exploitation. The decreasing of actual evaporization destructs precipitaion cycle.

发现了自然水循环各环节被破坏的原因：森林草原植被破坏和水土流失，破坏了水源涵养层，破坏了山区地表水和地下水；矿业不良排水破坏了山区地下水；河流渠道化破坏了地表水和湿地地下水；过量开采破坏了平原地下水；陆地实际蒸发量的减少，破坏了大气降水循环。

Aims Spring ephemerals characterized by very short-term growth rhythm and specific biological traits in the Junggar Desert of China play an important role in succession of the desert plant community, maintenance of the desert biological diversity and conservation of water and soil in desert.

准噶尔荒漠分布的早春短命植物不仅具有十分独特的生物学特点，而且在荒漠植物群落演替、物种多样性维持及土壤改良与防治水上流失等方面具有重要的生态学价值。

The results showed that Tall fescue Traple is the best,Tall fescues Melike is the second,Red clove Redquin is the third,Award of Kentucky bluegrass the worst and the others in the middle in introduced 9 species,according to soil and water conservation and forage grass.

结果表明，在参试的9个品种中，以翠碧高羊茅的综合性状最佳，第二为迈洛克高羊茅，第三为雷得昆红三叶，草地早熟禾的优异和新哥来德最差，其它品种居中。

The summer camp I am very happy, there are a lot of harvest, I work on the importance of soil and water conservation with the further understanding.

这次夏令营活动让我感到很快乐，也有很大的收获，我对水土保持工作的重要意义有了更进一步的理解。

The water conservation benefit of soil for different forests was 277.28%-173.67% higher than that of grass slope, among them, the highest one was birch and larch mixed forest, the followings were larch planted forest, Chinese pine planted forest, birch natural forest, and the lowest one was natural shrub forest.

林地土壤的涵养水源效益比荒草坡高277.28%~173.67%，其中白桦落叶松混交林最高，落叶松人工林、油松人工林、白桦天然林次之，灌木林最低。

In order to improve the water use efficiency under conservation tillage, the effects of subsoiling on soil moisture under no-tillage 2 years later was studied.

研究两年免耕后深松对土壤水分的影响，提高保护性耕作条件下对土壤水分的利用效率。

A field experiment of 40 cm subsoiling under no-tillage 2 years later was operated from 2005 to 2006. Based on the data of soil moisture and crop yield, the physical basis of subsoiling for water conservation and yield increasing was analyzed.

土壤免耕第3年的基础上深松40cm，2005~2006年连续两年通过田间试验观测深松对土壤水分的影响，分析深松保墒增产的机理。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。