网棚精养林蛙新技术——新宾下林模式

林蛙也称哈士蚂,是辽宁省东部山区价值较高的经济蛙种.它集食用、药用、保健于一体,尤其林蛙油是早已驰名中外的最佳滋补强壮剂,每公斤达2000多元,而且供不应求.新宾是清王朝发源地,山水优异,所产林蛙个大、体肥、油多、品质好.因此新宾满族自治县于1995年被国家命名为“中国林蛙之乡”,林蛙生产已成为该县的主导产业,农民致富的新途径.

省人口计生委关于祁阳县内下林场所辖四个村能否享受《湖南省人口与计划生育条例》有关少数民族地区再生育条件规定的批复

永州市人口计生委:你委《关于祁阳县内下林场所辖四个村享受少数民族生育政策的请示》(永人口[2006]2号)收悉。你委请示称,祁阳县内下村、河上江村、瓦窑村、新屋场村原属晒北滩瑶族乡和宁远县荒塘瑶族乡管辖,因建设内下电站的需要,分别于1990年9月和1993年6月划归祁阳县内下林场管辖。四个村辖36个村民小组,总人口3593人。

卫辉比干庙,天下林姓根

5月24日(夏历四月初四)是中国历史上第一位敢于犯颜直谏的爱国主义者、殷朝太师比干诞辰3085周年纪念日。据历史记载,比干被纣王迫害致死后,其夫人生下儿子名坚,因居长林而生,周武王克纣后赐为林姓,因此天下林姓尊比干为宗祖。是日,在河南省卫辉市比干庙,来自台、港、澳和美国、加拿大、日本、东南亚和大陆一些省市的林氏后裔500多人,举行了隆重的谒祖典礼。在修葺一新的比干庙内。

林间小路

这是一条可以入诗入画的小路,许多年以来,我一直这样认为。由某种原因滋生了伤感情绪的我,是在一个风清云淡的秋日走进这片丛林的。初进这片丛林的时候,心情像一朵含苞待放的花,在阳光的抚爱下哗地绽开了,没有了苦闷、忧伤,却得到了一份意想不到的收获。从此,这条小路就成了我生命中的珍存。其实,这片树林并不是十分的茂密幽深,更算不上一望无际。

天下林姓根系卫辉

滔黄河畔,巍巍太行前,一座气势磅礴的庙宇历尽千古沧桑,一片肃穆苍翠的松柏迎送万方子孙。这就是河南省卫辉市举世闻名的忠臣古庙——殷太师比干庙。也是天下林姓祖根所在。

Cultivation Techniques of Panax notoginseng F.H. Chen under Different Forests

To overcome the issues of high cost and continuous cropping obstacles in facility cultivation of Panax notoginseng_ F. H. Chen, satisfy the market demand, save the production cost, improve the utilization rate of forest land, increase the in-come of forest farmers and protect the ecological environment, the cultivation tech-niques of high-quality P. notoginseng seedlings from Wenshan, Yunnan under four kinds of forests （walnut forest, China fir forest, grape forest and kiwi forest） were in-vestigated in this study. The results showed that the height growth, crown diameter, survival rate and 3-year-old tuber weight of P. notoginseng_under walnut forest were higher than those under the other three kinds of forests; the height growth, crown diameter, survival rate and 3-year-old tuber weight of P. notoginseng under China fir forest were higher than those under grape forest and kiwi forest; and the crown di-ameter and survival rate under grape forest were higher, and the height growth and tuber weight under grape forest were lower than those under kiwi forest. Walnut is a broad-leaved deciduous tree species, so large-scale cultivation of P. notoginseng_should be conducted under broadleaf deciduous forest with canopy density around 0.8, taking advantage of the cool environment and rich humus layer under forest. This cultivation technology could save labor, shade, fertilizer and other costs, and accord with the ecological habit and the growth rules of P. notoginseng, thus im-proving yield and achieving high economic benefit.

Different Understory Cultivation Techniques of Paris polyphylla Smith

This study was conducted for the purposes of reducing consumption of wild resources of Paris polyphylla Smith, satisfying the market demand, saving the production cost, improving utilization rate of forest land, increasing income of foresters and protecting ecological environment. Three types of fores{ land, i.e., the evergreen forest land （China fir forest）, deciduous forest land （walnut forest） and shrub land （honey suckle forest.） were selected, and seeds and cut rhizomes of Paris polyphylla Smith produced in Bamian Mountain, Hunan, were used in the study on understory seedling raising and cultivation techniques. The results showed that： when using different propagation materials, seed propagation could be adopted to reduce the consumption of wild resources and provide a large number of seedlings, and was beneficial to large-scale planting; and when conducing seedling and plantlet raising followed by transplanting and direct seeding and planting using different propagation materials in large-scale understory cultivation, direct seeding/ planting was appropriate for saving save production cost with the advantage of early production. Among the 3 different types of forest land, the best choice was broad- leaved forest land, which could achieve better economic benefit because of con- forming with the ecological habit and growth and development law of Paris poly- phylla Smith.

Prediction of rockburst classification using Random Forest

The method of Random Forest （RF） was used to classify whether rockburst will happen and the intensity of rockburst in the underground rock projects. Some main control factors of rockburst, such as the values of in-situ stresses, uniaxial compressive strength and tensile strength of rock, and the elastic energy index of rock, were selected in the analysis. The traditional indicators were summarized and divided into indexes I and 1I. Random Forest model and criterion were obtained through training 36 sets of rockburst samples which come from underground rock projects in domestic and abroad. Another 10 samples were tested and evaluated with the model. The evaluated results agree well with the practical records. Comparing the results of support vector machine （SVM） method, and artificial neural network （ANN） method with random forest method, the corresponding misjudgment ratios are 10%, 20%, and 0, respectively. The misjudgment ratio using index I is smaller than that using index II. It is suggested that using the index I and RF model can accurately classify rockburst grade.

Soil CH_4 fluxes response to understory removal and N-fixing species addition in four forest plantations in Southern China

CH4 is one of the most important greenhouse gases, and mainly comes from soils in forest ecosystems. The objective of this study was to determine the effects of forest management practices such as understory removal and N-fixing species （Cassia alata） addition, on soil CH4 fluxes in four forest plantations in southern China. Fluxes of CH4 were measured in Eucalyptus urophylla plantation （B1）, Acacia crassi-carpa plantation （B2）, 10-native-species-mixed plantation （B3）, and 30-native-species-mixed plantation （B4） stands using the static chamber method in Southern China. Four forest management treatments, includ-ing （1） understory removal and replacement with C. alata （UR＋CA）; （2） understory removal only （UR）; （3） C. alata addition only （CA）; and （4） control without any disturbances （CK）, were applied in the four forest plantations. The results showed that plantation types had a significant effect on soil CH4 fluxes. B1 and B2 tended to be CH4 consumers, while B3 and B4 inclined to be CH4 producers. UR decreased CH4 fluxes by providing a more optimal soil temperature and moisture regime for mi-croorganism community and increasing substrate mineralization. How-ever, CA enhanced CH4 fluxes in B1 and B2 for N-fixing function of C. alata while lowered CH4 fluxes in B3 and B4. Soil CH4 flux rate was significantly related to soil temperature and moisture conditions in the top 10-cm soil layer. Furthermore, the quality of substrates, such as Soil Organic Carbon （SOC） and mineral N might also be important driving factors for CH4 fluxes. This study improved our understanding on CH4 fluxes in plantations under different management practices such as UR and CA.

Correlation between Yield of Coptis chinensis Franch. and Soil Nutrients under Different Forests

[Objective] This study was conducted to investigate the correlation be- tween yield of Coptis chinensis Franch. and soil nutrients under different forests. [Method] The soil nutrients and yields of C. chinensis in fallow field, Cryptomeria japonica forest, Magnolia officinalis forest and Phellodendron chinense forest planted with C. chinensis were investigated. [Result] The contents of soil nitrogen （total ni- trogen, alkali-hydrolyzale nitrogen）, organic matter, potassium and phosphorous under the planting mode of C. chinensis under C. japonica forest were the highest; and the contents of organic matter and total nitrogen in the soils of M. officinalis and P. chinense forests were close to each other at the medium abundant level, and the phosphorous contents were more abundant than those in fallow field. [Conclusion] This study could provide a theoretical basis for scientific fertilization.

Cultivation of Black Fungus under Forest in Middle-high Altitude Areas

[Objective] The study was to solve the contradiction between fungus and forest during the production of black fungi, and to obtain relatively high economic benefits and ecological benefits. [Method] Black fungi were cultivated in forest with middle-high altitude of 500-1 600 m. The germination time of fungus stick, germination days of buds, growth days of fruiting body, commodity exterior, marketing effect and biological efficiency of black fungi were investigated. [Result] Compared with traditional cultivation, black fungus products cultivated under forest had the taste and flavor of wild black fungus. Fungus chaff wastage was directly decomposed by the roots in forest land, improving the soil structure of forest land. The need of moisture retention and the frequent access of administrative staff reduced the probability of forest fire occurrence. [Conclusion] Cultivation of black fungus under forest saves more than 70% fixed-asset investment on fungus shed, and the biological efficiency reached 12.2%.

农技校飞出金凤凰

农技校飞出金凤凰王永明、刘在生是广灵县平城农业技术学校的毕业生，在校期间，他们二人就多次在《山西科技报》、《雁北日报》上发表科技小论文，受到校领导和县委领导的表彰。１９８５年从农校毕业后，王永明与刘在生结伴在家乡南村镇下林关村科学种植３１种草莓获得成...

倘若“杨老先生”在电影界操刀

前不久,《中国青年报》发表了《无法的电影业》一文,披露了1985年以来北京因某些领导干涉而停映5部影片的内幕。不知为何,读后想起了“杨老先生”。“杨老先生”者,乃《中国电影报》刊登的直书吴天明指责《老井》是“反党反人民、反社会现实”的“反动影片”的那个南京的“古稀老人”。特意在署名前加上“古稀老人”四字,大抵可解释为:小子,听着,我吃的盐比你吃的饭还多,还不快快反躬自省!

13/11是最简分数

贵刊1991年第四期刊登了杨进信同志撰写前《由一道数学题想到的》一文,读后很受启发。然而,文中列举《小学数学标准化训练》书第四页例子:“一个分数的分子和分母( ),这个分数是最简分数。(A)相等;(B)是互质数;(C)都是质数。这里有三个答案,其中(B)是唯一正确的。”我认为此例并无不妥之处。杨进信同志说:“显然,这题的选择常有片面性,忽视了另一释情况的存在。如13/11,虽然13和11是互质数,但是13/11却不是最简分数。”我认为这种说法是错误的。

创新观念为先

百货业是国内零售业中相对传统的业态,悠久的历史是其底蕴的体现,同时也容易固化企业的思维,因此,在创新中,观念的转变首当其冲。

让家成为度假天堂

向往热带海岛的美妙风光却又没有时间远行?那就把度假胜地"搬"回家吧。运用浓烈的色彩、花朵以及各种斑斓的饰物,亲手营造你的"度假小屋"。

家住竹坞西

小时候,老屋旁边有一大片毛竹林,翠绿挺拔,直插云空,把四旁的旧木房子都映衬出几分绿意。竹林边有一条小溪,清澈见底。盛夏午后,炙热的阳光铺散在田垅野陌,知了的叫声一阵高过一阵,孩子们光着脚丫,坐在溪边的石头上,啃着清甜的玉米杆,交谈着一些孩童趣事。

反弹琵琶也成文

如何适应改革的形势,写出更多更有价值的新闻呢?笔者认为,反弹琵琶也成文。 我理解的反弹琵琶的写作方法,就是运用辩证关系,对某一事物从正反两方面进行比较,在正面不能突出问题时,再进行反面分析,力求找到一种最佳报道方式,以达到好的宣传效果。现择三例,与通讯员共同切磋。 反弹体裁。一次,镇委副书记徐传洲向我提供,镇林业站站长杨世军新居落成后,为了避免单位同事相亲属们前往送礼恭贺。