natural meadow

Self-sown grass and organic mulching could modify soil environment,increase the organic matter content and soil microorganism.

研究了自然生草和有機物覆蓋對富士蘋果園中微生物和土壤有機質含量的影響。

Lead Content in Plants From the Grassland Natural Reserve Area in Wutai Mountain.;

五臺山草地自然保護區植物中鉛元素含量的初探

A Study on Cobalt Content in Plants of Wutai Mountain;

五臺山草地自然保護區植物中鈷的含量及分布特征

Thirdly, man-made grassland is being promoted so as to ease the pressure brought to bear on natural grassland by the ever-growing livestock population.

三是建設人工草地，減輕牲畜數量增加對自然草地的壓力；

Land in this area is barren and no plant can grow here, because there are natural disasters throughout the entire year.

這個地區因常年自然災害, 土地瘠瘦, 寸草不生。

Bio-economical.policy study on land-use of Caohai natural reserves;

草海自然保護區土地利用調整之生態經濟對策

Research Status of Natural Factors Influencing Soil Respiration of Grassland Ecosystem

影響草地土壤呼吸的主要自然因子研究現狀

(2) The amount of the soil evaporation in Eucalyptus wood slope was the highest,followed by the nature grass slope,while it was the lowest in nature slope.

(2)不同地類的土壤蒸發量為桉樹林坡面>自然草坡>階間草坡。

The Restoration of Degraded Ecosytem in Hunshandak Sandland Through Natural Process;

渾善達克退化生態系統恢復研究—自然力在沙地草地恢復中的應用

Soil Erosion Processes on Sloping Grassland in Heaven Lake Nature Reserve of Xinjiang Wei Autonomous Region

新疆天池自然保護區草地坡地土壤侵蝕規律研究

a bird suddenly got up from the grass

草地里突然飛起一只鳥。

Never has my sympathy with Nature down to the stones and blades of grass been fuller and more ardent.

我從來沒有更開心更熱情地同情大自然，以至于石頭和草葉。

Grassland degradation of Tongde County was caused by both natural factors and human factors.

同德縣的草地退化是自然因素和人為因素共同綜合作用的結果。

Study on Ruderal Community Diversity and Distribution under Different Land Use Type in Suburban of Shanghai

上海郊區不同土地利用類型自然草本群落多樣性及其分布研究

Study on Growth Period of Each Type of Grassland and Their Natural Conditions Based on Remote Sensing in Gansu Province

各類型草地生長過程及自然因子特征遙感研究-以甘肅省為例

Changes of Plant Community in Grazing and Restoration Processes in Horqin Sand Land,Inner Mongolia

科爾沁沙質草地植物群落的放牧退化及其自然恢復過程

The Bottleneck and its Resolutions to the Natural Recovery of Black Soil Type Degraded Grassland in the Three River Source Region

三江源區“黑土灘”型退化草地自然恢復的瓶頸及解決途徑

Breeding of New Line"Huhe"and Evaluation of Germplasms of Kentucky Bluegrass under Artificial Stresses and Natural Conditions in Shanghai

草地早熟禾新品系“滬禾”的選育和在上海自然條件與人工逆境脅迫下的草坪特性鑒定

The Effect of Climate Factors on the Grass Yield of Natural Pasture

氣候因子對天然草地牧草產量的影響

Impacts of Land Use and Climate Change on Cultivated Land Potential Productivity in Farming-Pastoral Zone of North China

干旱化與土地利用變化對中國北方草地與農牧交錯帶耕地自然生產潛力的綜合影響評價

unearned increment

(土地的)自然增價