forest productivity 中文意思是什麼
forest productivity
解釋
森林生產率- forest : n. 福雷斯特〈姓氏，男子名〉。n. 1. 森林，山林。2. （英國）皇家狩獵場。vt. 在…造林；使長滿樹林，使成為森林。
- productivity : n. 1. 多產，豐饒。2. 生產率；生產能力。
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Removing too much biomass would eventually cause declines in forest productivity.
帶走更多的生物質最終將使森林的生產率下降。 -
Results demonstrate that with the succession going on from herbosa shrubs coniferous forest theropencedrymion evergreen broad - leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax
結果表明：隨著草叢灌叢針葉林針闊混交林次生常綠闊葉林正向演替的進行，在未形成成熟而穩定的頂極群落之前，物種豐富度、物種多樣性指數、植被生物量及生產力都呈增大趨勢。 -
Characters of climatic productivity of main forest types in xiaoxing ' an mountains
小興安嶺主要林型氣候生產力的特徵 -
On the other hand, the research of " forests and water " is from the aspects of the eco - hydrological models of forest ecosystem from, the viewpoint of forest ecosystem and combining with the research on forest structure, function, productivity, energy and material circulation, to explore the laws and internal relation of various forest hydrological phenomenon is the basic topic of research
另一方面在祁連山水源林生態系統長期定位研究的基礎上，以祁連山青海雲杉為代表運用森林生態學、森林水文學、生態經濟學、生態水文學等學科理論，通過建立單一因子的水文環境因子模型研究森林水文效應；從生態系統觀點出發，結合森林的結構和功能以及生產力和系統能量及物質循環的研究，揭示各種森林水文現象發生和發展的規律及其內在聯系。 -
The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var
本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。 -
Research on forest biomass and productivity in yunnan
雲南省森林生物量與生產力研究 -
As a species of mixed forests, nitrogen fixation trees play an important role in improving forest land nutrient and moisture status, maintaining soil productivity, enhancing forest land productivity, and accelerating main species growth
作為混交樹種，在混交林中發揮著改善林地養分及水分狀況，維持地力，提高林地生產力，很好地促進主要樹種生長的重要作用。 -
The three systemic indicators contain eco - environment indicator, society development indicator and economy development indicator. the six collective indicators contain ecosystem stability indicator, ecosystem productivity indicator, indicator of soil and water conservation and water resource self - restraint capacity of forest, level of forest management indicator, society development indicator and economy development indicator
3個系統指標分別為生態環境系統指標、社會發展系統指標和經濟發展系統指標， 6個大類指標分別為：生態系統穩定性指標、生態系統生產力指標、水源林水土保持水源涵養指標、森林經營水平指標、社會發展指標和經濟發展指標。 -
Forest ecosystem management takes forests as a com plex ecosystem. in the process of managing and utilizing forest resources, the eco system should be maintained in a healthy and integrated state, and its function be kept for a long time in good condition. for this purpose, the paper puts forward a basic unit - dividing method for forest ecosystem management, using subcompartm ent dividing combined with forest type dividing. it also discusses the relations of forest structure with ecosystem productivity, productive potentiality and biod iversity under forest ecosystem management
森林生態系統經營是將森林作為一個復雜的生態系統來經營，在對森林資源的經營利用過程中，應維持森林生態系統的健康與完整，並長期保持系統的功能良好.提出將小班區劃與林型劃分相結合的方法來劃分森林生態系統經營的最基本單位，並對森林生態系統經營中森林結構與系統生產力、生產潛力、生物多樣性等的關系問題進行了探討 -
The paper indicates that the impact of nfpp upon state - owned forest regions is not only some direct economic losses caused by decreasing or forbidding deforestation, but also some indirect ones rendered by the shrinkage of wood processing industry, enterprise ' s disability to invest in projects of high productivity for lack of fund, and its difficulty in forming new economic growth, etc
摘要天保工程的實施給國有林區造成的不僅有因木材減產限產造成的直接經濟損失，而且還有木材加工行業萎縮、企業資金不足無法投入高產項目、難以形成新的經濟增長點等間接損失。
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