耕作限度 的英文怎麼說
中文拼音 [gēngzuòxiàndù]
耕作限度
英文
margin of cultivation-
Abstract : the preventing and remedying desertification puts into practice prevention as main, principle of combining ecology protection with prevensing and remedying, principle of preventing and remedy and economy development and utilization coodinated and promoting, comprehensive preventing and remedying and chassified control combines, public particlpation and renovating person benifits combine for different responsibility body bearing different responsibility bearing principle, becanse of man - made fault causing desartification preventing and remedying responsibility carrying out action - person bearing principle, principle of gorernment mainly bearing desertification recovery caused by nature action and benifit ' s person undertaking reasonable burban and decide unified planing system, systen of desertification status investigation and monitoring early warning system, fallow, limited cultivating hand and help - the poor combined systen, prohibitory systan, priority region and urgent - action region system
文摘:沙漠化防治實行預防為主，生態保護與防治結合原則，防治與經濟開發利用相協調促進原則；綜合防治與分類控制相結合；公眾參與和整治者受益結合；對不同責任主體實行不同責任承擔原則，由人為不當活動造成的沙漠化治理責任，實行行為者負擔原則；對自然作用造成的沙漠化治理實行政府負擔為主，受益者合理負擔原則；確立統一規劃制度；沙漠化狀況調查評估與監測預警制度，休耕限耕和扶貧結合制度，禁限制度，優先區域與緊急行動區域制度。The preventing and remedying desertification puts into practice prevention as main, principle of combining ecology protection with prevensing and remedying, principle of preventing and remedy and economy development and utilization coodinated and promoting, comprehensive preventing and remedying and chassified control combines, public particlpation and renovating person benifits combine for different responsibility body bearing different responsibility bearing principle, becanse of man - made fault causing desartification preventing and remedying responsibility carrying out action - person bearing principle, principle of gorernment mainly bearing desertification recovery caused by nature action and benifit ' s person undertaking reasonable burban and decide unified planing system, systen of desertification status investigation and monitoring early warning system, fallow, limited cultivating hand and help - the poor combined systen, prohibitory systan, priority region and urgent - action region system
沙漠化防治實行預防為主，生態保護與防治結合原則，防治與經濟開發利用相協調促進原則；綜合防治與分類控制相結合；公眾參與和整治者受益結合；對不同責任主體實行不同責任承擔原則，由人為不當活動造成的沙漠化治理責任，實行行為者負擔原則；對自然作用造成的沙漠化治理實行政府負擔為主，受益者合理負擔原則；確立統一規劃制度；沙漠化狀況調查評估與監測預警制度，休耕限耕和扶貧結合制度，禁限制度，優先區域與緊急行動區域制度。And the major results and some new viewpoints were presented as follow : 1 ) sediment content of cn tillage system in runoff process is substantially low compared to st under rainfall with high intensity, showing cn bear the efficient capacity of control soil loss. nevertheless, when soil is saturated, the runoff intensity of both tillage systems is near, implicating cn has the limited function of reducing runoff. 2 ) based on the case analysis of observed all rainfall - runoff generation processes, a ) the initiation time hysteresis of surface runoff generation is notable when rainfall fall upon the unsaturated purple soils, which is attributed to the property of rapid water sorption and much non - capillary porosity
經近幾年的觀測和理論分析，取得了以下結果和創新的認識： 1 ）在降雨強度較大的情況下，保護性耕作制? ?聚土免耕的產沙強度明顯較常規耕作制? ?順坡耕作的小，說明聚土免耕耕作制防治土壤流失是有效的；但當土壤達到飽和后，聚土免耕的徑流強度與常規耕作的差異較小，產沙強度也增大，因此，聚土免耕防治水土流失的能力是有限的。Absolute amounts of soil erosion is not large for the falling gradient in black soil region, but the nutrient is high in erosion soil, the nutrient of erosion soil and runoff is high, which leads to soil fertility degeneration, while n and p nutrient pour into water with surface runoff, it leads to water nutrient enrichment and pollution, and becomes one of confined factors of water nutrient enrichment
吉林農業大學碩士學位論文黑土地表徑流氮磷養分特徵及其與肥力退化的關系由於黑土耕作區坡度平緩，土壤侵蝕的絕對量並不很大，但由於土壤中攜帶的養分高，養分流失的較多，流失的養分將引起肥力的退化，而且氮磷等養分隨地表徑流流出匯入各種水體，引起水體富營養化和污染，成為水體富營養化的限制因子。分享友人