查询词典 infertile soil

Firstly, vegetation degradation enlarges bareness of ground surface, which enhance wind erosion and dry blowing, make the soiltexture coursing, increase the soil bulk volume and low down the retentiveness of water.

首先，植被退化，增大了地表裸露度，风蚀与风选作用加强，使土壤质地粗化、容重增加，持水性能降低。

Moisture retentivity of soil.

土壤对潮湿的保持力。

It is very important to study on the soil property and its spatial variation for reclamation and reutilization of mining subsided land.

开展采煤沉陷区耕地土壤性质变异规律研究，对于指导矿区土地复垦具有十分重要的意义。

Soil microbiotic crusts play important roles in vegetation restoration and revegetation in desert area.

土壤生物结皮在沙漠地区植被恢复和重建中具有重要的生态学意义。

Rock/soil slope ; revegetation ; ecological effect

岩土坡；植被恢复；生态效应

Revisal coefficient models of moisture were rectified in different extents of water using on the basis of dynamic monitor data of soil moisture, surface runoff and superficial ground water, and moisture revisal coefficients in different conditions of nature and fully utilization of surface runoff and superficial ground water.

在实地动态监测耕地土壤水分含量的基础上，修正建立水分订正系数模型，并计算出龙何屯自然条件下的水分订正系数。

As a case of demonstration section of ecological reconstruction in Guohua, Pingguo County in Guangxi, photosynthesis potentiality model, revisal coefficient model of temperature, moisture and soil amongst existing models are amended and validated to evaluate productive potentiality by utilization of mechanism methods on the foundation of detailed analysis of specific entironmnet condition, respectively.

本文以广西平果县果化镇生态重建示范区为例，在充分分析研究区特殊的生态环境条件的基础上，选择机制法评价土地资源生产潜力的建模思想。

Analysis of rheology behavior of soil cement test is the main work of this dissertation.

本文的主要工作是对水泥土的流变力学性能进行试验研究。

The foreign experience of planting alfalfa on moderately acid soil showed that inoculating acid-tolerant rhizobium could improve the yield and quality of alfalfa.

国外在中度酸性土壤上种植紫花苜蓿的经验表明，酸性土壤上接种高效耐酸苜蓿根瘤菌是提高紫花苜蓿产量和品质的重要措施。

The results showed that during 45 days'growth of corn obvious changes were found in the rhizosphere soil.

结果表明，在玉米生长45天内，根系土壤中汞的形态有了较为明显的变化。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48