查询词典 soiling crop

Results showed that the CO2 absorb ability in the eight Crop systems net productivity process was 4 032 366ta^(-1); the amount of CO2 outlet in the soil was 3981753ta^(-1), less than the CO2 adsorb ability, so that the whole crop system was a weaker carbon sink process in the atmosphere. The continue planting species such as Rice, sugarcane, cassava, and melon crop or high haulm crops have the characteristics of annually crop net productivity CO2 absorb ability bigger than soil CO2 outlet and this systems had bigger carbon sink function ability; the short haulm crop systems of peanut, soybean, flowers, and vegetable annually crops net productivity CO2 absorb ability less than soil CO2 out let, but also carbon sink source. The CO2 absorb ability of fruits and economic parts above ground bigger than that which growth under ground. Except of the CO2 absorb ability less than the soil CO2 outlet in the peanut during growth in procreate period, the other seven crops CO2 absorb ability were bigger than that soil CO2 outlet during procreate period. Most of crops during growth in procreate period had carbon sink function ability, and only in barren period showed the carbon source function phenomenon.

结果表明：2005年广州市8种农作物系统作物净生产力吸收CO2 4032366ta^(-1)，其土壤CO2排放3981753ta^(-1)，吸收大于排放，对大气CO2而言，整个农作物系统是一个弱的碳汇；水稻、甘蔗、木薯和果用瓜4种连作或高杆作物系统每年作物净生产力吸收CO2量大于土壤CO2的排放量，系统具有较大的碳汇功能，花生、大豆、花卉和蔬菜4种矮杆作物系统每年作物净生产力吸收CO2量小于土壤CO2的排放量，系统起着碳源作用；果实或经济产量生长在地上部分的作物其单位面积吸收CO2能力比果实生长在地下的作物大；除花生在生育期间生物量吸收CO2量少于同期土壤排放以外，其余7种作物在生育期间生物量吸收CO2的量大于同期土壤排放，大多数农作物在生育期间具有碳汇功能，在撂荒期才体现碳源作用。

The planting structure has been converted from the duality of "food crop-economics crop" to the triplicity of "food crop-economics crop-forage crop".

利用实地调查，文献分析的研究方法，分析西藏一江两河地区种植业结构和畜牧业结构。

Light wear and soiling to covers and spine, the initials "W.B." penciled under the author's signature on the frontispiece, and a couple of soiling spots along the hinge on pages 40-45 else clean and tight, overall a Very Good copy of this rare title.

轻磨损和弄脏的封面和脊椎，缩写"世界银行"铅笔根据作者对莎翁的签名，以及沿弄脏页40-45取决于其他清洁和紧张，总体一本非常难得的标题良好的副本点夫妇。

Light wear and soiling to covers and spine, the initials "W.B." penciled under the author's signature on the frontispiece, and a couple of soiling spots along the hinge on pages 40-45 else clean and tight, overall a Very Good copy of this rare title.

轻磨损和弄脏的封面和脊椎，缩写&世界银行&铅笔根据作者对莎翁的签名，以及沿弄脏页40-45取决于其他清洁和紧张，总体一本非常难得的标题良好的副本点夫妇。

But the vegetations changes in plain zone were slower.(4) Study on the driving forces and driving mechanism of the change of vegetation cover in HHH zone The farmland vegetation area received the common drive of climate and the society factors, but climate factors were the main driving forces for annual harvest crop or biannual irrigated and dry harvest crop, and society factors were the main driving forces for biannual harvest crop or biyearly tri-harvest dry crop.

4黄淮海地区植被覆盖变化驱动力与驱动机制研究不同植被覆盖类型，其NDVI变化的驱动力不同：一年一熟粮作区植被覆盖变化受到气候和社会经济因子的共同驱动，但以气候驱动为主；一年两熟或两年三熟旱作区植被覆盖变化受到社会经济和气候因子的共同驱动，但在主要驱动因子中，社会经济的影响更大一些；一年水旱两熟粮作植被覆盖变化主要受气候因子驱动，同时，社会经济因子也会在一定程度上影响植被NDVI的变化。

But the vegetations changes in plain zone were slower.(4) Study on the driving forces and driving mechanism of the change of vegetation cover in HHH zoneThe farmland vegetation area received the common drive of climate and the society factors, but climate factors were the main driving forces for annual harvest crop or biannual irrigated and dry harvest crop, and society factors were the main driving forces for biannual harvest crop or biyearly tri-harvest dry crop.

4黄淮海地区植被覆盖变化驱动力与驱动机制研究不同植被覆盖类型，其NDVI变化的驱动力不同：一年一熟粮作区植被覆盖变化受到气候和社会经济因子的共同驱动，但以气候驱动为主；一年两熟或两年三熟旱作区植被覆盖变化受到社会经济和气候因子的共同驱动，但在主要驱动因子中，社会经济的影响更大一些；一年水旱两熟粮作植被覆盖变化主要受气候因子驱动，同时，社会经济因子也会在一定程度上影响植被NDVI的变化。

"Catch crop : A quick-growing crop , planted and harvested between two regular crop s in consecutive seasons or between two patches of regular crop s in the same season."

添闲作物：指在前后不同季节的两种正常作物之间、或在同季节的两种不同作物之间种植的一种快熟作物。

Cover crop; nurse crop A companion crop grown to protect some other crop sown with it, as small grain is sometimes seeded with clover.

护田作物；遮盖作物一种用同其它作物一起播种的作物，用来保护其它作物。例如三叶草有时和一些小粮食作物一起播种。

This college was founded by merge of college of crop, plant protection and gardening, and its disciplines cover crop science, plant protection, and gardening, of which crop genetic breeding, crop nursing and farming, pathology of plant, agricultural entomology and pest prevention and cure, pomology science was national key disciplines.

该学院由原作物学院、植保学院和园艺学院三个学院合并建立，学科覆盖作物学、植物保护学、园艺学三个一级学科，其中作物遗传育种学、作物栽培学与耕作学、植物病理学、农业昆虫与害虫防治学、果树学为国家重点学科该网站介绍了给学院的专业设置、师资力量和科研工作等信息。

The updated WASDE incorporates the recently released September 1 grain stocks estimates for the 2007-08 crop year end, the 2008 US small grain crop annual production summary estimates, ongoing world crop and trade results, as well as today's updated US row crop estimates.

测。更新后的全球农业供需预测包含了近期公布的2007－2008作物年度截止9月1日的谷物库存预测、2008年美国小粒谷物年产量汇总预测、全球作物产量及交易现状以及今天的更新后美国行播作物收成预测。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。