The object of this paper is to understand variation of soil respiration and its mechanism in an oak forest and a pine plantation in southeastern China, so as to provide basic data for estimation of carbon budget and prediction of global change in the future.

本文根據(jù)近兩年的實驗監(jiān)測數(shù)據(jù)色综合视频导航，綜合分析研究了土壤呼吸的時間動態(tài)變化以及各因子對土壤呼吸影響的機理中文字幕国产精品一区，并結(jié)合國內(nèi)外研究資料天天综合色一级毛片中国，分析和探討土壤呼吸研究存在的問題以及今后的研究趨勢成a人一级性爱，為全球碳預(yù)算和全球氣候變化的預(yù)測提供基礎(chǔ)數(shù)據(jù)。

The status and role of the shrub layer and main shrub species in the nutrient cycling of the mongolian oak forest were stated in this paper.

本文對次生蒙古櫟林中的灌木層及主要灌木樹種在林分養(yǎng)分生物循環(huán)中的地位與作用進行了研究www久久99com。

You can find the oak tree forest after coming up for about fifty minutes.

沿著上坡路走上50分鐘左右日韩毛片在线中文字幕不卡，會走進橡樹林。

First an acorn; then an oak tree forest.

先有一顆橡子亚洲日免费视频，然后有了一片橡樹森林黄色视频污免费网站。

Secondly the potential impacts of climate change on the oak forest ecosystem were predicted with BIOME-BGC model.

然后成年人三级片，利用BIOME-BGC模擬遼東櫟林生態(tài)系統(tǒng)NPP對不同氣候變化的響應(yīng)精品一区二区三区色婷婷综合。

First an acorn; then an oak tree forest.

先是橡子，然后是一片橡樹林放黄国产一区二区。

An oak forest used to surround the area, but for hundreds of years, a majestic wall has served as the city's main source of protection.

然而數(shù)百年來在线免费观看高清无码黄色视频，宏偉的城墻已成為該城最主要的防衛(wèi)機制。

The quality and composition of the pine forest and oak forest were highly similar while the relationship between the composition of light and the canopy characters varied with forest types.

3光資源的數(shù)量及其組成在油松林和遼東櫟林下的變化非常相似美色色，但光資源的組成與林冠特徵的關(guān)系在兩種森林間存在差異一级做a爱黑人又粗又硬。

The fifth region is the Pine Barrens in the interior of the southern part and is covered rather extensively by mixed pine and oak forest, and as such has a much lower population density than much of the rest of the state.

第五區(qū)域是松樹貧瘠的內(nèi)部南部和覆蓋廣泛的混合，而松樹和橡樹林午夜少妇性开放视频，因此大大降低了人口密度比許多其他國家处女福利视频。

"Forest","n","森林",This is an oak forest.

&，&這是個橡樹林爱爱潮喷小视频免费播放。