土壤保持

It loosens and aerates clay soils + Retains water in sandy soils.

它和放松aerates+土+粘土沙质土壤保持水分。

We took administrative districts at the county level as valuation units, estimated the current economic values of 7 ecosystem services (gas diversification, organism production output, and climate control conservation of water supply, soil formation and conservation, and environment purification, maintenance of organism culture and enter) for 6 biomes (forest, grassland, desert, farmland, wetland, and city).

以县级行政区为评价单元，核算了森林、草地、荒漠、农田、湿地和城市6大类和气体调节、水源涵养、土壤保持、环境净化、生物多样性维护、生物产品产出、文化娱乐7个方面的生态服务价值。

Often they will surprise me: A young flaxen-haired woman in the middle of farm country will deliver a passionate plea for intervention in Darfur, or an elderly black gentleman in an inner-city neighborhood will quiz me on soil conservation.

他们经常会使我惊讶：在乡下农场中，有一位头发是亚麻色的妇女，她充满激情地请愿干预达尔福尔的武装动乱（北欧人的发色多为亚麻色，这位妇女的种族与她所关心的达尔富尔黑人形成对照），还有在市内城区社区的一位老年的黑人绅士，盘问我有关土壤保持的问题。

Secondly was honeysuckle and peach tree wood.So,in poor karst area,in order to link environmental benefits,eco-efficiency and social and economic efficiency,it were best measures to plant prickly ash peel or honeysuckle.It can improve capability of holding nutrient in short phase.,also it were beneficial to soil fertility,and hold back soil erosion.Sampled soil in a camphor slope,through analyzed on soil nutritive elements,like that Ca,Mg,Cu,Zn,Mn,Mo,Si,Fe,we had a deeper understanding with soil ground erosion and underground soil leaks.

通过时间对比分析，得出不同土壤利用方式下土壤养分保持能力和土壤退化的变化趋势，提出运用土壤指纹电荷方法对某一研究区域的土壤养分保持能力进行研究，可以减少研究区土壤的破坏程度，只要前期充分展开相关指纹电荷工作研究，制作图谱，后期研究则只需取少量土壤测定土壤pH值后查询前期土壤指纹电荷图谱即可得出某时段内土壤养分保持能力的变化趋势：通过对重庆南平镇石庆村人为生态恢复区不同土壤利用方式下前后一年土壤样品的分析，得出退耕后撂荒草地土壤的各项养分保持指标含量增长最快，对恢复土壤退化程度最为有利，其次是杉树林和樟树林；而从人为生态恢复的各种利用方式来看，花椒林土壤的养分保持能力最好，土壤退化恢复的程度最快，其次是金银花和桃林。

They were engaged in the study of soil conservation.

他们在从事土壤保持的研究。）我要自考网

They were engaged in the study of soil conservation.

他们在从事土壤保持得研究。

They were engaged in the study of soil conservation.

他们在从事土壤保持的研究。）自考成绩查询

One important form of soil conservation is the use of windbreaks.

其中一种重要的土壤保持方式就是利用防风林。

One important form of soil conservation is the use of windbreaks.

一个很重要的土壤保持形式就是使用防风林。

One important form of soil conservation is the use of windbreaks.

土壤保持的一个重要方法是利用防风林。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失