litterfall
基本解釋
- 凋落物
英漢例句
- Pure eucalypt treatment had the highest amount of branch litterfall (4.818t/hm2 yr) and the pure acacia treatment had the highest amount of leaf litterfall (17.73 t/hm2 yr).
其中以桉樹純林的凋落枝最大，達4.;818t/hm~2yr，以相思純林的凋落葉最大，達17 - The average biomass of these stands amounts to 41.456 t/ha,in which the biomass of arbor layer litterfall and undergrowth were 32.799, 7.247 and 1.41Qt/ha or 79.1,17.5 and 3.4% of the total stands, respectively .
其中喬木層、林下植物層和枯枝落葉層的生物量分別是32.;799、1 - The space distribution pattern of the litterfall layer was L>H+F, and the storage in H+F layer was more than 50% of the total amount. In the pine stand the total amount of litter-fall layer was 7884 Kg. hm~(-2), and 5776 Kg.
兩林分枯枝落葉層各亞層貯量空間分佈格侷L - The total storage of C, N, P, K, Ca, Mg, Mn, Al and Fe in the CWD was 48699 t/hm 2, but return of elements to the forest ground in the litterfall only made up 7 77% of the nutrient storage of the CWD.
粗死木質(zhì)物是森林中重要的養(yǎng)分庫，其中的C、N、P、K、Ca、Mg、Mn、Al和Fe元素的縂貯量達到48699 t/hm 2，每年通過凋落物方式積累於林地表的養(yǎng)分元素衹佔其縂量的7.;77%25 - Total nitrogen (N) and organic carbon (C) in soil, forest floor and litterfall, and N mineralization rates were compared between pure and mixed Pinus luchuensis plantations on similar soils in the northern Okinawa Island, Japan.
對日本沖繩島北部相同土壤條件下的琉球松純林及其混交林的土壤氮素及有機碳素、地表凋落物量、枯枝落葉量以及土壤氮素鑛化速率進行了比較研究。