人工肥力

土地经济肥力是人工肥力和自然肥力的统一体；

Economic fertility of soil is a combined formation of artificial and natural fertility .

黄土丘陵沟壑区不同人工林地土壤肥力变化研究

Soil fertilizer change of different artificial forest on Loess plateau Gully

黄土丘陵区人工林地土壤肥力评价

Soil fertility evaluation of planted forest land on the hilly-gullied Loess Plateau

雷州半岛桉树人工林土壤肥力特征及其成因

Characteristics and Causes of Soil Fertility Under Eucalyptus Plantations in Leizhou Peninsula

草原化荒漠地带建设人工绿洲土壤肥力的研究

Soil Fertility Evaluation and Utilization for Artificial Oasis in Steppe Desert Region

桉树人工林地土壤肥力灰色关联分析

Gray relation grades analyses of soil fertility of eucalyptus plantation

抚育间伐对人工林土壤肥力的影响

Influence of thinning on soil fertility in artificial forests

红松人工林土壤肥力的研究

Study on soil fertility of Korean pine plantations

塔克拉玛干沙漠腹地人工植被土壤肥力变化

Changing of Eolian Soil Fertility in Central Taklimakan Desert Under Impact of Artificial Vegetation

红壤地区杉木人工林土壤肥力质量性状的演变

Changes of soil fertility quality properties under artificial Chinese fir forest in red soil region

云贵高原红壤退化人工草地土壤肥力变化与有效施肥技术研究

Effective fertilization and soil fertility dynamics in deteriorate pasture of red-soil in Yunnan-Guizhou plateau of China

闽北栓皮栎人工林土壤肥力与水源涵养功能的研究

Studies on Soil Fertility and Function of Water Conservation of Oriental Oak Plantation in Northern Fujian

杉木人工林土壤肥力和林分生产力逐代下降，直接影响杉木林地可持续经营。

The gradual drop of soil fertility and stand productivity of Chinese fir plantation with the increase of continuous plantation would directly hamper its sustainable management .

为了解蓝桉人工林地土壤肥力的变化情况，进行了蓝桉施肥和造林后的林地土壤肥力监测和分析。

In order to learn the soil fertility change of Eucalyptus globulus man-made forest , the monitor and analysis on the soil fertility of forest land fertilized and afforested with Eucalyptus globulus were carried on .

建议降低人为干扰频率和强度及改善林分群落结构来提高杉木人工林土壤肥力，从而实现杉木林的可持续经营。

And that the key to improve soil fertility in man-made forest and attain sustainable management of forest land is to decrease the frequency and intensity of artificial disturbance , and to ameliorate the community structure of Chinese fir plantation .

本论文从杉木人工林林地土壤肥力特征、土壤微生物分布特点、土壤酶活性、速生丰产措施、人工林物种多样性、林分生物量及碳储量进行测定分析研究。

The characteristics of soil fertility and soil microbial distribution , the soil enzyme activities , the measures for fast growing and high yield , species diversities , stand biomass and carbon storages in the China Fir plantation fields had been investigated and studied on this paper . 1 .

对进一步弄清杨树人工林地力退化的机理，加强杨树人工林地土壤肥力技术措施，防止地力衰退提供一些基础数据。

For further understanding the mechanism of fertility degradation of poplar plantation , we should strengthen the poplar forest soil fertility technical measures to prevent the soil fertility declination .

根据桉树人工林地土壤营养元素含量及土壤酶活性变化，利用灰色关联分析方法评价了桉树人工林地的土壤肥力，列出了以土壤营养元素含量及土壤酶为指标的土壤肥力水平排列顺序。

By gray relation analysis , soil fertility was evaluated according to the nutrient contents and the enzyme activities of Eucalyptus plantation soils .