旱地群落 的英文怎麼說
中文拼音 [hàndeqúnlà]
旱地群落
英文
xerophytia-
The paper consists of five sections : ( 1 ) introduction ; ( 2 ) the current situation, advantages and disadvantages of gaoqiao region ' s agricultural economy development ; ( 3 ) the leading industry of gaoqiao region ' s agricultural economy development : grass - animal industry ; ( 4 ) the strategy choice for grass - animal ecological agriculture pattern of gaoqiao region ; ( 5 ) the guarantee measures of gaoqiao region ' s grass - animal ecological agriculture pattern
高橋試區農業經濟發展的劣勢有： （ 1 ）水土流失嚴重，土地瘠薄，生態環境惡劣； （ 2 ）水資源貧乏，氣候乾旱，極大限制了農作物的生長潛力； （ 3 ）文化教育事業落後，科技人才奇缺，群眾文化水平低； （ 4 ）經濟基礎薄弱，農業投入嚴重不足； （ 5 ）交通不便，信息閉塞，市場狹小，商品經濟落後； （ 6 ）產業結構單一，小生產與大市場相悖。The community productivity, structure and succession are significantly influenced by global climate changes. this study focused on soil respiration rate of stipa baicalensis grassland by using dynamic infrared gas absorbed method. we analyzed diurnal pattern of soil respiration rate and the influences of surface soil temperature and water content for this parameter, then compared the differences between day and night soil respiration rates, and explored the correlations between aboveground and underground biomass with the soil respiration
溫帶的半乾旱、半濕潤區草甸草原屬于過渡氣候影響下形成的植被類型，對環境氣候條件變化十分敏感，為了揭示半乾旱、半濕潤區草甸草原生態系統土壤碳素釋放規律及其對主要環境因子的響應，本研究採用動態室紅外氣體吸收法測定松嫩草甸草原典型群落? ?貝加爾針茅群落土壤呼吸速率，分析了土壤呼吸速率日變化規律及表層土壤溫度和含水量對土壤呼吸速率日變化的影響，比較了土壤呼吸速率的晝夜差異，探討了地上生物量和地下生物量與土壤呼吸速率之間的相關關系。
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