缺林地 的英文怎麼說
中文拼音 [quēlīnde]
缺林地
英文
openning-
The thesis starts with chinese desertification prevention and cure lav per se and the problems in the relationship of desertification prevention and cure law, water and soil maintenance law, grassland law, forest law, soil administration law and environment protection law, searching out the limitation of chinese desert prevention and cure jurisprudence
本文針對我國《防沙治沙法》本身以及協調《防沙治沙法》和《水土保持法》 、 《草原法》 、 《森林法》 、 《土地管理法》 、 《環境保護法》等法的關系中存在的問題入手，尋找到我國防沙治沙法律體系中存在的缺陷。It points out that the rational and stable inner structure cannot lead to serious soil moisture shortage ; its natural climate condition can meet the needs of forest community. it is the irrational management that causes the serious soil moisture shortage in artificial forestry land. if we intervene properly and create some growth condition similar to natural vegetation, the recessed artificial robinniapseudoscacia can restore benignly
當前人工林地的土壤水分出現嚴重虧缺而形成土壤干化層並導致人工林衰退是人為不合理經營造成人工林群落林分結構不完善的結果，如果人為干預適當，能創造出類似於天然植被的生存條件，人工植被完全有可能得到正常的生存和發展，出現衰退的人工刺槐林完全有可能得良好的恢復。In the area of watershed between the yangtze river and the huaihe river, there are a series of ecological environmental issues, such as fragile forest ecosystem, frequent drought damage, lake of water resources, serious soil and water loss and contamination by chemical fertilizer, pesticide and plastic membrane
摘要分析了江淮分水嶺地區存在的森林生態系統脆弱，易旱多災，水資源短缺，土壤貧瘠，礦山開采過度，水土流水嚴重，化肥、農藥、農膜等農業化學品污染嚴重，農村生態環境退化等生態環境問題。Firstly, forestland operators ca n ' t gain compensation because of the outflow of ecological and societal effectiveness. secondly, forestland markets lack impetus because it is public product. thirdly, forestry has a long production cycle which increases the manage risk
這些現象是有其深層次原因的，主要以下幾個方面： （ 1 ）林地資源的外部性，林地經營者沒有實現其生態效益權益和社會效益權益，會導致林地資源減少； （ 2 ）林地的公共產品性，決定了林地私人市場缺乏動力； （ 3 ）林業生長周期長，加大經營風險。This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model
本研究立足於生態區域法的基本思路，採用系統設計的思想，通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合，宏觀與微觀、定性與定量、理論與實證研究等相結合的方法，運用統計分析、模型模擬等技術手段，在大量調研基礎上，針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題，以北京市順義區為典例，從土地利用現狀與動態、驅動力、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究，獲得如下研究結果： （ 1 ） 2002年順義區的土地利用仍以農業用地為主，耕地、園地、林地和牧草地之和占總土地面積的56 ，農用地中糧食作物仍佔43 。It is customary for a brother of the kingsguard to enter the service of the king having already accomplished a number of other worthy deeds ? commoners or green, inexperienced knights have been appointed to this prominent position, but rarely
按照慣例，為國王服務的御林鐵衛都已建立豐功偉績- -而平民或是新手，缺乏經驗的騎士也會被指定到這顯赫的地位，但非常罕見。In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined
（ 4 ）富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明，兩類森林群落沒有出現衰退的跡象，這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺，其自然氣候條件可以滿足森林群落生存、發展的需要。( 3 ) in artificial forestland, soil dried layer has been formed because of water deficit
（ 3 ）在人工林地，因水分虧缺形成了嚴重程度不同的干化層。The features of the red soil of the polang lake and its surround economic area are presented, the problems of red soil in exploitation are discussed, such as irrational use, soil and water loss, unreasonable distribution, single production, poor management, low forestry production level, lack of soil amelioration and low production
摘要論述了鄱陽湖及周邊經濟區紅壤的基本特徵，討論了紅壤在開發利用中存在的主要問題：利用不合理，造成水土流失；布局不合理，生產單一化很突出；經營管理不善，林業生產水平很低；耕地缺乏培育，產量低而不穩。" in many ways, the book is a mirror of mr. clinton ' s presidency : lack of discipline leading to squandered opportunities ; high expectations, undermined by self - indulgence and scattered concentration, " the times wrote
泰晤士報報道說： 「這本書在很多地方都反映出柯林頓的總統生涯：缺乏紀律以致於白白浪費機會期望值很高，而由於自我放縱和三心二意卻無法實現。 」This i not only thought possible, but easy, and pleas d my self extreamly with the thoughts of making it, and with my having much more convenience for it than any of the negroes or indians ; but not at all considering the particular inconveniences which i lay under, more than the indians did, viz. want of hands to move it, when it was made, into the water, a difficulty much harder for me to surmount, than all the consequences of want of tools could be to them ; for what was it to me, that when i had chosen a vast tree in the woods, i might with much trouble cut it down, if after i might be able with my tools to hew and dub the out - side into the proper shape of a boat, and burn or cut out the in - side to make it hollow, so to make a boat of it : if after all this, i must leave it just there where i found it, and was not able to launch it into the water
但我卻完全沒有想到，比起印第安人來，我還有許多特別不利的條件，那就是，獨木舟一旦做成后，沒有人手可以幫我讓獨木舟下水。是的，印第安人有印第安人的困難，他們沒有工具，但是，我缺少人手的困難更難克服。如果我能在樹林里找到一棵大樹，費了很大的勁把樹砍倒，再用我的工具把樹的外部砍成小舟形狀，然後把裏面燒空或鑿空，做成一隻小船假如這些工作全部完成後，小船仍不得不留在原地而無法下水，那對我又有什麼用處呢？In order to realize ningxia ' s sustainable agriculture development, the problems from population, recourse, environment and economic development must be solved ; examples are like population increase, high birthrate, less developing economy, farmers " lower income standard, lack of water, reducing of forest, grassland and farmland and weakness of the ecosystem
寧夏農業要實現可持續發展，必須解決來自人口、資源、環境及社會經濟發展的問題，如人口持續增長，自然增長率高；經濟發展落後，農民收入水平低；水資源短缺，森林、草原、耕地減少和生態系統脆弱等。Forest, remained to play a major role in their daily life, including in their thinking and culture, which is also typical in the northern area where people lived on forestry. from the perspective of cultural anthropology, the historical evolution of this ewenki group and cultural mode illustrate basic fact in the northern minority area. therefore, there is extensive academic values in studying this ewenki group, in terms of cultural anthropology, sociology, history
由於馴鹿鄂溫克人世代追隨野生馴鹿生活在茂密的古老山林中，從未離開過山林，與外界很少接觸，因而較完整地保存著極其古老的生產方式和生活內容，充分地展示著北方山林民族古樸、純真、與自然合為一體的思維規則和文化內涵，富有一定的代表性，是從事北方諸民族社會、歷史、文化發展演變研究的不可缺少的內容之一。There is lack of rainfall in experimental region. during its growth period, soil water content among different site types was : semi - shady > sunny > semi - sunny
黃土高原屬土壤水分虧缺型，不同立地條件之間，人工刺槐林土壤含水量從大到小為：半陰坡半陽坡陽坡。Human intervention such as overgrazing resulted in a great decline in soil infiltration rates, which are an important reason for soil degradation and soil drought the experimental results showed that plant biomass and productivity increased significantly with the increase of soil infiltration rates
人為活動干擾，如過度放牧壓實土壤和去除地表覆被造成土壤滲透性顯著降低，是林地土壤質量退化及土壤水分缺乏的重要誘因。試驗結果表明，植物生物量和生產力隨土壤滲透速率的增大而顯著提高。In 2001 it predicted that global warming would lead to many ills, including greater numbers of extinctions, growing shortages of water, higher incidence of tropical diseases, and lower yields from agriculture, fishing and forestry in some places
2001年，該委員會預測全球暖化會引發諸多惡果，包括大量生物絕種、水資源日益短缺、熱帶疾病發病率增高以及某些地方的農業、漁業和林業的產量降低。But in fact, difficulty in classification has been an obstacle in the utilization, conservation and application of the palm resources for the specialty of their geological distributions and morphological structures, and the lack of research on the physio - ecological principles in cultivation and appliance with the palm resources has not only coursed waste in plant introduction and acclimatization but also seve rely influenced the elaboration of the ecological efficiency of palms as an emblem of tropical plant landscape in the construction of urban green system
然而，由於棕櫚科植物地理分佈和形態結構的特殊性，分類鑒別上的困難已經成為這類資源科學保護、合理開發利用上的嚴重障礙；同時也由於對棕櫚科植物栽培應用中的生理生態規律缺乏研究，在引種馴化和推廣應用的過程中造成了不必要的浪費，並嚴重影響了這種熱帶植物景觀象徵的園林植物資源的生態效益的有效發揮。This paper descripts the present situation of the ecological environment in fushun city, including the high forest coverage, the unreasonable ecological structure, the influenced ecological function, the mine developing destroyed the deterioration ofecological balance seriously, the deterioration of ecological environment of mining area ; the coverage rate of nature reserve is relatively high1 but bio - diversity is still threatened seriously ; agriculture ' s ecological problem is severe ; soil erosion is serious ; the arrangement in the finished area is disorderly, the green land system is scarce of inconnective
摘要撫順市生態環境現狀： （森林覆蓋率較高，但生態系統結構不合理，生態功能的發揮受到影響；礦產開發嚴重破壞生態平衡，礦區生態環境惡劣，歷史欠帳大；自然保護區植被覆蓋率較高，但生物多樣性仍遭受嚴重威脅；農業生態問題嚴峻；水土流失嚴重；建成區布局紊亂，綠地系統缺乏連通性。 ）According to " forestland steady moisture capacity ", water deficiency in the former is only in surface and recovers timely after rain season. but in artificial forestland, there is an apparent shortage especially in deep layer, so it affects growth and development of vegetation
以「林地穩定持水量」為依據，天然林地水分虧缺不嚴重，只在淺層形成了輕度虧缺，並在雨季后能得到及時的恢復；同時這種虧缺並沒有影響到了天然植被的發育與演替。2 the comparisons between soil water deficiency in natural and artificial forest land show that : ( 1 ) the concept of " forestland steady moisture capacity " is presented and defined as the lowest soil water content that can not affect the forest regular growth primarily and cause inverse succession in community
2天然林地和人工林地土壤水分虧缺狀況對比： （ 1 ）提出了「林地土壤穩定持水量」的概念，初步定義為「不會影響到林分正常生長、發育，不會導致群落產生逆向演替所需的最低土壤含水量」 。分享友人