According to regulations of the government, in addition to afforested land, the area of bush forest, the area of forest land inside farm land and the area of trees planted by the side of farm houses and along the roads, rivers and fields should also be included in the area of afforested land in the calculation of the forest coverage-rate.

在計算森林覆蓋率時禁止18以下观看在线网站，森林面積包括郁閉度0.2以上的喬木林地面積和竹林地面積，國家特別規(guī)定的灌木林地面積亚洲欧美色A片一区二区三区、農田林網以及四旁（村旁城中村按摩一区二区在线观看、路旁、水旁中文字幕精品视频在线观看、宅旁）林木的覆蓋面積国产美女高潮抽搐视频网站。

April 30, 2008 in the evening, Yunfu City, Yunan Xian HIV Class A Hai re-education of a sudden onset, persistent high fever in a row, by police officers, immediately escorted to the camp hospital, but because of a shortage of manpower, there is no guarantee the ambulance, the same night Sanshui be sent to local hospitals, 4 police officers observe an entire night.

2008年4月30日晚上，云浮市郁南縣HIV類勞教人員阿海突然發(fā)病成年人在线免费视频大，連續(xù)高燒不退一区二区三区a毛片视频，所里干警立即將其護送到勞教所醫(yī)院，但因為人手不足久久九国产，無法保證救護，又連夜將其送到三水地方醫(yī)院亚洲日韩在线中文字幕三区，4名干警整整守了一夜9972国产在线超碰。

Forest structure,individual quality,tree density and crown density,and structure and function of brush forest are used to construct a criterion to the LQBF.

判定低質低效林的依據(jù)是林分的結構、林木個體質量欧美黄色免费网站视频、密度和郁閉度国产在线视频。、灌木林結構和功能。

The influence of environment factors on positioning and area measurement was mainly studied in this thesis, which factors including slope, slope site, aspect, crown density, dominant tree species, weather, date, period of time and down lead distance.

主要研究在森林資源調查中不同的外界環(huán)境因素與定位精度和面積測量精度的關系欧美动日韩中文，所涉及的環(huán)境因素主要包括坡度男女综合网、坡位、坡向欧美一级网址、林分郁閉度最刺激的性毛片免费视频、優(yōu)勢樹種、測量的天氣狀況玖玖爱网、測量日期色哟哟自拍一区二区、測量時段、引線距離等亚洲色无码一级毛片一区二区看。

The lowering temperature and raising humidity effect of urban green space is discrepant due to different natural environment, weather and climate, types of greenbelt, kinds of trees, crown density and area.

城市園林綠地由于自然環(huán)境條件国产福利影院在线观看、天氣氣候條件、綠地類型人人爱操屄、綠化樹木種類私人18禁午夜福利网站、樹冠郁閉度以及面積大小等的不同，其降溫增濕效應是不一樣的国产黄片视频在现看。

Low quality and benefit Forest ; criterion ; ecological benefit ; crown density ; Secondary forest

低質低效林亚洲黄片电影免费在线观看；判定標準十八禁止网址；生態(tài)效益；郁閉度国产500部自拍视频在线播放；次生林

Based on surveying data of sample plots of Phyllostachys pubescens Mazel in Xian＇an district of Xianning City,the effects of aspect,gradient,slope,humus thickness,crown density and stock density on the increment of Phyllostachys pubescens Mazel.were analyzed.

以咸寧市咸安地區(qū)40塊毛竹標準地的調查資料為基礎ww。av，分析了坡向、坡度91囯内自拍、坡位亚洲欧美国产国产综合二页、腐質層厚度、郁閉度和立株度對毛竹胸徑生長量的影響久久精品免费精品。

In each of the three effect factors, the main items are: crown cover—crown density and thickness of the crown; litter layer——dry weight of the litter on each unit area, thickness of the litter and the biggest amount of holding water in the litter; soil——soil porosity, soil capillary space and soil moisture content.

三層次中的主要影響因子有：林冠層——郁閉度和林冠厚度一级a性色生活片厕所偷拍；枯落物層——單位面積枯落物干重、枯落物厚度及枯落物最大持水量女人被做到高潮连连免费视频；土壤層——土壤總孔隙度線上A片、毛管孔隙度及土壤含水量。

Besides, investigations on plant species diversity欧美性日、forest crown density欧美性爱在线播放网站、incidence extent、gradient and exposure of 3 forest communities were taken,while dilution heat method and semi-micro Macro Kjeldahl method were used to determine the content of organic matter and nitrogen in soil.

調查了3個油松林群落的物種多樣性午夜福利97、林分郁閉度日韩在线精品福利网页视频观看免费、油松毛蟲發(fā)生程度、坡度及坡向欧美日韩啊啊啊爽性爱激情。

The harm extent of Dendrolimus tabulaeformis and D. spectabilis were analyzed by fourteen forest factors, from which four significant ones were selected: crown density, altitude, average diameter at breast height and MLP. MLP is a new parameter suggested in this paper. It is better than diversity index to the harm extent, and it can indicate some information on not only the under story plant species diversity but the forest environment. Using the four key factors a multiphase linear regression model was made for risk analysis of the harm extent of pine caterpillar.

該文首次提出了林下植物喜濕度參數(shù)MLP(Moisture-Loving Parameter)女老师高潮喷水，并用包括MLP在內的14個林分因子與松毛蟲危害程度進行逐步回歸分析，從中篩選出主林層郁閉度十八禁欧美在线观看视频、海拔高度AAAAAAA一级婬片毛片、油松平均胸徑和林下植物喜濕度參數(shù)4個關鍵因子，與松毛蟲危害程度之間均呈顯著的負相關關系99免费视频精品，并進一步用這4個因子與松毛蟲危害程度建立多元線性回歸模型老司免费看黄色三级片，該模型可對松毛蟲危害程度進行風險評估。