草地生产力

宁夏中部干旱带沙质荒漠化草场草地生产力动态监测

Dynamic monitoring of dry and sandy grassland productivity in central Ningxia

开垦种植对草地生产力及土壤影响的研究

Effect of Cultivation on Grassland Productivity and Soil Quality

土壤有机碳含量和全氮含量与植被盖度和草地生产力存在正相关趋势；土壤有机碳含量和全氮含量与土壤pH值和全盐量存在负相关趋势。

In addition , soil organic carbon and nitrogen contents showed positive linear correlations with plant cover and productivity and negative correlation trend with soil pH and total salt content .

草地生产力遥感动力模拟模型

Simulation Model of Grassland Production Using Remote Sensing Data

提高热带草地生产力及其利用研究

Study on increasing productivity of Tropical Pasture and utilization

阿拉善荒漠草地生产力特点及其发展畜牧业生产的探讨

Probe to the productive characteristic and developing animal husbandry in Alashan desert grassland

宁夏农牧交错区（盐池）草地生产力对气候变化的响应

Response of Grassland Productivity to Climate Change in Farming-Pasturing Interlaced Area of Ningxia

四川省莎草、杂类草草地生产力遥感监测

Remote sensing based productivity monitoring of sedge and forbs grasslands in Sichuan Province

西宁南山草地生产力评价

Evaluation on production of Xining Nanshan grassland

采用调控措施集蓄土壤水分是促进植物生长和提高草地生产力的关键。

The soil water regulation plans promote the growth of plant and raise the grassland yield .

随着气候的变化，北方农牧交错带草地生产力下降，组成变坏，质量下降。

The grassland productivity and quality in northern farming-pastoral transitional zone decreased along with climate changes .

内蒙古草地生产力资源和载畜量的区域尺度模式评估

Assessment of the productivity and livestock carrying capacity of Inner Mongolia grassland by regional scale modeling

气候变化对中国北方草地生产力的影响研究

The Study of the Impact of Climate Change on the Grassland Production in the North of China

共和盆地温性草原物候期草地生产力与气候因素的灰色关联度分析

The grey correlative degree analysis on the relationship between grassland productivity and climate factors in temperate steppe of Gonghe Basin

半干旱黄土丘陵区白羊草人工草地生产力和土壤水分特征研究

Aboveground productivity and soil water characteristics of cultivated Old World bluestem grassland in semi-arid loess hilly-gully areas on the Loess Plateau

围栏放牧目的是在维持草地生产力的前提下，最大限度地挖掘草地生产潜力。

The purpose of fence grazing is to exploit the productive potential of grassland as muchas possible based on the sustenance of grassland productivity .

这种情况对于平衡草地生产力的季节差异，特别是提高有效营养物质的均衡供应水平具有重要的意义。

This situation has important significance for the balancing seasonal difference of grassland productivity and especially for increasing the balance supply level of available nutrients .

群落稳定性是人工混播草地生产力和可持续利用的重要指标，其影响因素主要有种间相容性、干扰活动和混播组分多样性等。

Community stability , an important index for both primary production and sustainability of artificial mixed-pasture , is determined by compatibility , disturbance and species diversity .

为了遏制退化，保持生态平衡，提高草地生产力，从而达到永续利用的目的。

The test only want hold back ( check ) degeneration , keep the ecological balance , improve grassland productive forces , and always continuously the grassland .

草地生产力逐年下降，家畜数量逐年上升，养畜大户超载严重等因素是造成草畜矛盾日益加深以及草地生态系统退化严重的主要原因。

It was found that decreased herbage productivity and increased animal number were the main factors contributing to the feed-animal imbalance status in the village in Keshiketeng Banner .

本研究主要采用黄土高原典型气候区大面积的野外人工草地生产力和土壤水分的实地调查和计算机系统动力学模型数值模拟研究相结合的方法。

In this study , the method of actuarial investigation of forage productivity and soil moisture on artificial pasture combined with numerical simulation value by dynamic crop model were used .

当需求增加并超出一定限度后，如果没有适当的外界能量输入，必然会导致天然草地生产力下降，进而使得生态系统的结构发生改变。

When demand increases and exceeds limitation , moreover , there is no enough external energy input , grassland productivity drops inevitably , and then , changes of ecosystem structure take place .

可见，退耕还草对粮食安全的影响是双向的，其成功与否取决于潜在草地生产力。

Thus , it is demonstrated that changing cultivated land into pasture may have both positive and negative effects on food security and success depends on the potential productivity of the pasture .

结果表明，水分条件是影响中国北方草地生产力的主要气候要素，并在此基础上利用湿润度和降水量分区建立了草地气候生产力模型。

Results show that the water condition is the primary climatic factor that effects grassland production of the North of China , and based on the conclusion , establishes divisionally the grassland climatic production model with moisture index and precipitation .

结果表明，由于气候干旱、土壤贫瘠等原因，黄土高原北部紫花苜蓿草地生产力普遍偏低，最高鲜草产量为4000~5000kg/hm2，而且生长盛期持续时间较为短暂，最多不超过6年。

Results show that M.sativa productivity was low in general attributed to drought and poor soil fertility conditions . The highest fresh biomass was 4 000-5 000 kg / hm ~ 2 , but the flourishing duration was short no more than 6 years .

施肥作为提高草地生产力的快速有效手段及普遍的农艺措施，在退化天然草地恢复工程中能否广泛采用尚存争议。施肥后会产生怎样的生产和生态作用，需要详细的实验分析。

As the general agronomic method , fertilization is a rapid and effective method to enhance the biomass productivity , but which is still controversial to use in natural rangeland ecosystem and need more detailed experimental study to clarify its effects on production and ecological results .

利用各县市级单元天然草地产草量及其气候资料，研究了蒙新区和青藏区天然草地生产力的地理分布与光、热、水等主要气候要素之间的关系。

Using crude grassland production of every county unit and its climatic reorganized data , the thesis studies the relation between the geographical distribution of crude grassland production and primary climatic factors such as light , heat , water in the area of NeiMongol Xinjiang and QingHai XiZang .

采用逐步订正法估算作物生产潜力，运用迈阿密模型对草地自然生产力进行估算，从而计算出区域土地极限生产力，并估算区域最大人口承载量；

The land ultimate production potentiality and carrying capacity were estimated ;

多年生禾草混播草地初级生产力及群落动态研究

Primary productivity and community dynamics of mixed perennial grass pasture

放牧对牧草贮藏养分及草地早春生产力的影响

Effect of Grazing on Herbage Nutrient Storage and on Early Spring Productivity