forest cover rate 中文意思是什麼
forest cover rate
解釋
森林覆蓋率-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。 -
The forest cover rate of the beijiang river drainage basin is higher. affected by c3 plant, its poc 8 13c value was lighter
北江流域森林覆蓋率較高，受c _ 3植物影響明顯，故北江水體中poc ~ （ 13 ） c值最輕。 -
Investigation of soil and water loss in hunan and jiangxi provinces shows that there are still evident soil and water loss under forest even through the forest cover rate is as high as 51. 4 % and 53 % respectively
對湖南、江西兩省水土流失概況的調查結果表明，盡管森林覆被率高達51 . 4 %和53 % ，林地中的水土流失仍十分明顯。 -
The degraded ecosystems include : > 25 dry land, mountain dry land, low density forest, grassland of low cover rate or moderate cover rate, all of which are the sources of soil and water loss. the low intensity of soil and water loss accounts for 55 % of the project area, the moderate for 23 %, and fierce for 12 %
早地、山區早地、疏林地以及低、中覆蓋度草地，也是水土流失主要的策源地;其水土流失的強度也表現出微度侵蝕占項目區的55 % ，中度侵蝕佔23 % ，強度侵蝕佔12 % 。 -
The advantage of project : muchuan is rich in the forest resource with the cover rate 63. 2 % as the leader in sichuan province, which supplies the enough material
項目優勢：沐川縣森林資源豐富，森林覆蓋率達63 . 2 % ，全省第一，生產原料有保障。 -
As a metropolis at the west coast of taiwan strait, fuzhou is possessed of an obviously predominant location, a very good ecological environment, a high rate of the forest cover and abundant resources for tourism
摘要福州市作為海峽西岸的中心城市，區位優勢明顯，生態環境優美，森林覆蓋率高，森林旅遊資源豐富。
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