The major factors which hinder the sustainable management of Chinese fir plantation include not only the vulnerable subtropical red soil ecosystem which Chinese fir grow in, but also the unitary community structure and the biological characteristic of this artificial forest community. Additionally, the traditional culture system of Chinese fir including controlled burning lead to the degradation of soil ferti-lity.

影響杉木人工林可持續(xù)經(jīng)營的因素是多方面的国产黄色无码一级视频，主要和杉木人工林所處亞熱帶紅壤區(qū)生態(tài)系統(tǒng)的脆弱性和杉木人工林群落的單一性及杉木生物學特性等有關(guān)一区二区视频，而傳統(tǒng)杉木林培育過程中采取一系列傳統(tǒng)的營林措施則加劇了林地地力衰退好爽黄色视频。

The maximum rate of decomposition of soil organic carbon insubtropical wetness area is red soil under coniferous and broad-leaved mixed forest＞yellowsoil under grass＞yellow soil under shrub＞yellow soil under broad-leaved forest＞red soilunder camellia oleifera; decomposition rate of yellow soil is faster than red soil. Themaximum rate of decomposition of soil organic carbon in subtropical wetness zone isyellow-brown soil under mixed forest in Nanjing＞red soil under adult fir in Yujiang＞redsoil under broad-leaved forest in Yujiang.

濕潤亞熱帶地區(qū)森林土壤有機碳分解速率最大值出現(xiàn)在培養(yǎng)初期的一周內(nèi)，其順序：針闊混交林紅壤＞茅草黃壤＞灌木林黃壤＞常綠闊葉林黃壤＞油茶紅壤男女羞羞视频，同一植被下黃壤有機碳分解速率大于紅壤，南京混交林黃棕壤＞余江杉木(32年)紅壤＞余江常綠闊葉林紅壤亚洲日本欧美中文中韩。

Occurrence of hailstorm in subtropical oceanic region is unusual. According to the surface station record, in the past 38 years (1961~1999), there was only 6 hail events occurring in Taiwan in summer time. During 28-31 August 1999, hailstorms occurred in Taipei every afternoon.

冰雹事件於副熱帶地區(qū)相當罕見AV毛片免费久久久久性色，根據(jù)過去臺灣地區(qū)38年(1961~1999)地面測站紀錄顯示，只有6次發(fā)生於夏季国产原创同事在线视频，其中在1999年8月28日至8月31日連續(xù)四日於臺北地區(qū)午后降下冰雹。

Between 65 and over 100 species: tropical and subtropical regions of both hemispheres, mainly in Africa; two species in China.

在65之間和超過100種：兩半球的熱帶和亞熱帶的地區(qū)国产a片一级毛片网站，主要在非洲中文字幕视频日韩高清在线视频；中國有2種。

In the Afro-Asian monsoon area, in wintertime the subtropical anticyclone belt whose ridgelines are consecutive takes on relatively symmetrical and zonal structure, the WEB tilts southward with increasing height.

脊面傾斜方向改變表明副高形態(tài)發(fā)生變異和性質(zhì)發(fā)生變化wwww性，副高脊面的位置變化反映副高帶的南北進退国产高清日韩。

Univ.;Changsha 410128;China; 2 Inst. of Subtropical Agric.;CAS;Changsha 410125;China

中國科學院亞熱帶農(nóng)業(yè)生態(tài)研究所湖南長沙410125

MORAKOT is expected to travel WNW under the influence of the subtropical ridge north of the system.

在北面副熱帶高壓脊的影響下，預(yù)料莫拉克將向西北偏西移動欧美色83p。

The subtropical ridge north of MELOR is expected to steer it in a WNW direction in the next 24 hours.

茉莉以北的副熱帶高壓脊會帶領(lǐng)它於未來 24 小時向西北偏西移動www.tynxxw.com。

The subtropical ridge north of MELOR is expected to steer it in a WNW direction in the next 2 days.

茉莉以北的廣闊高壓脊會帶領(lǐng)它於未來兩天向西北偏西移動。

Subject to the subtropical ridge NNE of NEOGURI, it has been moving WNW in the past 24 hours.

受到浣熊東北偏北的副熱帶高壓脊影響外国a色网站，該系統(tǒng)於過去 24 小時向西北偏西方向移動三级欧美日韩第一页。