1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.

通過(guò)上述幾個(gè)方面的研究，主要得出以下15條結(jié)論：(1)生態(tài)位構(gòu)建可使空間結(jié)構(gòu)種群色黄乱婬伦AV，甚至是在沒有雜合子優(yōu)勢(shì)的條件下人人靠人人干，形成多種可能的穩(wěn)定基因型分布模式；(2)隨著環(huán)境的破壞與惡化欧美旧网，種群的生態(tài)位構(gòu)建作用加速其較早形成穩(wěn)定多態(tài)以阻礙環(huán)境對(duì)種群的不利影響精品哟哟视频在线观看，解釋了有機(jī)體在不利環(huán)境下的一種生活史對(duì)策；(3)生態(tài)位構(gòu)建作用通過(guò)基因型—環(huán)境反饋機(jī)制及有限的基因交流導(dǎo)致基因型多態(tài)的穩(wěn)定共存欧美日韩激情一区二区；(4)有機(jī)體的生態(tài)位構(gòu)建作用是一種積極的動(dòng)力改變環(huán)境進(jìn)而改變其自然選擇的方向直接看很黄的免费网站2021；(5)生態(tài)位構(gòu)建的時(shí)滯作用對(duì)集合種群動(dòng)態(tài)和空間分布產(chǎn)生深刻影響；(6)集合種群大小在時(shí)滯的嶄新效應(yīng)和等權(quán)重效應(yīng)下達(dá)到一固定值黄片子大全，而在首位效應(yīng)下達(dá)到統(tǒng)計(jì)穩(wěn)定igao爱搞视频在线，表明首位效應(yīng)的影響最顯著；(7)首位效應(yīng)下生態(tài)位構(gòu)建相對(duì)權(quán)重的增量和時(shí)滯的長(zhǎng)度是影響系統(tǒng)不穩(wěn)定性動(dòng)態(tài)的關(guān)鍵因素日本永久免费A∨；(8)適中的生態(tài)位構(gòu)建強(qiáng)度有利于集合種群的續(xù)存2018精品黄色视频；(9)生態(tài)位寬度變窄會(huì)減少集合種群的數(shù)量從而增加其滅絕風(fēng)險(xiǎn)；(10)時(shí)滯和生態(tài)位構(gòu)建的雙重作用使系統(tǒng)產(chǎn)生周期振蕩欧美A级在线现免费观看，并在異質(zhì)性環(huán)境中產(chǎn)生穩(wěn)定的螺旋波一级毛片不卡免费，破碎的螺旋波和環(huán)形波三種分布模式；(11)集合種群與資源含量的空間分布因?yàn)橄鄿パa(bǔ)狼友网站国产；(12)具有生態(tài)位構(gòu)建的集合種群續(xù)存不僅取決于侵占率與滅絕率之間的平衡色呦呦.m3u8，而且依賴于生態(tài)位構(gòu)建能力同其生境的自然消耗速率之間的妥協(xié)；(13)當(dāng)生境中適合侵占的斑塊比例小于其侵占率與滅絕率之比時(shí)亚洲伊人蕉综合网，生態(tài)位構(gòu)建作用促使集合種群在一定條件下續(xù)存：(14)生境斑塊的狀態(tài)從不適合到適合轉(zhuǎn)變過(guò)程中存在生態(tài)位構(gòu)建強(qiáng)度和系統(tǒng)初始條件這兩個(gè)閾值色色哟网站；(15)集合種群的大小同正生態(tài)位構(gòu)建能力正相關(guān)，意味著對(duì)環(huán)境具有較強(qiáng)正作用的有機(jī)體對(duì)維持有效生境起積極作用能看的黄色v网站。

From the perspective of the colonization context and the literary history of the Japanese invaded areas of China, this paper investigates the "Hanjian 漢奸 Literature" and analyzes the differences of "Hanjian Literature" in three different colonization systems. It suggests differentiation principles in five aspects for how to delimitate "Hanjian Literature."

從殖民語(yǔ)境和淪陷區(qū)文學(xué)研究史角度国产又大又黄刺激又黄的视频，對(duì)"漢奸文學(xué)"加以辨析文章分析了"漢奸文學(xué)"在三種不同的殖民體制中的差別，并在如何界定"漢奸文學(xué)"的問(wèn)題上在线观看黄色视频国产免费，提出五個(gè)方面的區(qū)分原則2020欧美性爱片。

Soil pH value had a significant negative correlation with total colonization rate and hypha colonization rate.

土壤pH值與總定殖率呈極顯著負(fù)相關(guān)，與菌絲定殖率呈顯著負(fù)相關(guān)免费视频久久久。

In over-wintering species experiment, AMF colonization showed significant difference, which was greatiy dependent upon the plant species character. The AMF colonization rate and index of LaHumperenne in all community in which GnapbaHum affim existed showed better colonization than that in Latium perenne mono

存在有鼠曲草的含有黑麥草的各種組合(如黑麥草+鼠曲草組合三级网址日本，)里黑麥草的AN田侵染指數(shù)和侵染率均高于黑麥草單種乱伦小说亚洲，、(黑麥草+野豌豆+鼠曲草)等處理中的黑麥草的入MF感染情況表現(xiàn)比較復(fù)雜色色色中色色，中文字幕欧洲有码无码、(黑麥草+野豌豆+鼠曲草)中黑麥草的AN正侵染指數(shù)發(fā)生顯著性變化P

A review was presented, starting with the concept of root colonization and colonization ability of Rhizobium, and their effects on competitive nodulation of Rhizobium.

本文從根部定殖概念及根瘤菌在土壤中的定殖能力對(duì)其競(jìng)爭(zhēng)結(jié)瘤能力的影響著手，介紹了根瘤菌根部定殖的研究概況首页国产日韩欧美第一页。

Mycorrhizal spores in most rhizospheric soil of weed species, except Vida cracca, TrfoHum npens and Oxalis cornculata, decreased significantly. 2 Influence of coexisting of various plant species on AMF colonization in Pb polluted soil Comparing with monoculture,the results showed mat diversity did not affect on die AMF colonization of weed plants planted in soil at the concentration (334.5251mg/kgsoil or nonpolluted soilsignificandy.In the experiment of species combination with Trfolium repens, Lolium perenne, Poa annua, Plan tago virginica, the infection rate of all species increased in Pb treatment except Poa annua, implying that diversified plant species coexistence may alleviate the impacts of Pb on mycorrhizal colonization.

鉛污染土壤條件下不同植物物種互作對(duì)菌根的影響通過(guò)盆栽加鉛模擬試驗(yàn)白浆AA片，在鉛污染(334.5251mg／kg土)的土壤中，黑麥草日韩AV产在线、早熟禾日韩第一视频、白車軸草和北美車前無(wú)論是對(duì)照還是鉛處理，多植物物種共存組合中的雜草菌根侵染率與單個(gè)物種相差不大在线你你懂，AMF菌根侵染率的處理間差異的變化趨勢(shì)在鉛污染的土壤和對(duì)照土壤條件下表現(xiàn)一致色爱综合区国产精品，但鉛處理與對(duì)照相比，除了早熟禾外欧美性爱白人性69交性，菌根侵染率均升高黄色视频在线观看链接，說(shuō)明雜草多樣性對(duì)菌根有一定的保護(hù)作用。

Influence of plant species coexisting on AMF colonization in root system under field conditions The field experiment showed that the influence of species coexisting community on the AMF colonization in these plant root system significantly depended upon the plant species character.

泡囊數(shù)主要說(shuō)明AMF在宿主根系的定殖程度学生妹网站，泡囊數(shù)表現(xiàn)出與菌根侵染率相似的變化規(guī)律欧美视频福利6，也是各物種共存組合與單個(gè)物種相比變化不大，但泡囊數(shù)在鉛污染土壤中明顯增加色综合久久不88色综合久久，這可能是鉛污染刺激了這些草的菌根膨大www.hbjmzz.com。

Soil available N was positively correlated with spore density of Salvia miltiorrhiza and Dioscorea opposite, and hyphal and total percent colonization of Adenophora borealis, while negatively correlated with arbuscular colonization of Aster tataricus; Soil available P exhibited a positive correlation with arbuscular colonization of Salvia miltiorrhiza and vesicular colonization of Dioscorea opposite, while a negative correlation with spore density of Platycodon grandiflorus and vesicular colonization of Atractylodes macrocephala; Spore density of Bupleurum Chinense had a positive affection with soil organic matter; Soil pH was negatively correlated with hyphal and total colonization of Adenophora borealis and spore density of Bupleurum chinense, while positively correlated with spore density of Adenophora borealis.

土壤堿解N與丹參和麻山藥的孢子密度、北沙參菌絲定殖率和總定殖率呈顯著正相關(guān)久久九九99免费视频，與紫苑叢枝定殖率呈顯著負(fù)相關(guān)A片黄色视频免费。土壤速效P與丹參叢枝定殖率2018年一级黄片、麻山藥泡囊定殖率呈顯著正相關(guān)，與桔梗孢子密度、白術(shù)泡囊定殖率呈顯著負(fù)相關(guān)美女裸体黄网站18禁无遮挡。土壤有機(jī)質(zhì)與北柴胡孢子密度呈顯著負(fù)相關(guān)黄色网站在线播放。土坡pH與北沙參菌絲定殖率和總定殖率自拍视频日韩在线视频观看免费网站、北柴胡孢子密度呈顯著負(fù)相關(guān)蜜桃无码成人影片在线观看网站免费，與北沙參孢子密度呈顯著正相關(guān)。

The highest spore density, hypha colonization and arbuscule colonization occurred in 0~10 cm soil layer. The maximum value of the vesicle colonization appeared in 10~20 cm soil layer.

AM真菌孢子密度和菌絲日韩精品影视系列在线播放视频、叢枝及總定殖率均在0~10cm土層達(dá)到最大值99re在线观看视频精品免费看，而其泡囊定殖率最大值則出現(xiàn)在10~20cm土層。

The versicular colonization and total colonization of Fenge maximal occurred in March 2005, the minimal value occurred in April 2005, but the Yaoge's maximal occurred in Jan 2005, the minimal occurred in Jun 2005. Hypha and arbuscular colonization have same orders in the two breeds, fastigium occurred in summer and low occurred in late spring and early summer.

粉葛的泡囊定殖率和總定殖率最高值出現(xiàn)在2005年3月份www.黄色网站.com，最低值出現(xiàn)在4月份美女黄色观看；藥葛的總定殖率和泡囊定殖率最高出現(xiàn)在2005年1月份，最低值出現(xiàn)在6月份。2品種菌絲與叢枝的定殖率變化規(guī)律基本一致禁止18岁黄色网站，高峰期都出現(xiàn)在冬季欧美性XXXXX极品视频，低峰期則出現(xiàn)在春末夏初。