1) pen crab farming
网围养蟹
1.
In 1997, a research was carried out to show to what degree and how the pen crab farming of different pattern may impact on the water quality, hydrobiological communities and sediment environment by comparing these factors inside and outside pens in East Taihu Lake.
通过对东太湖网围养蟹区内外的生态环境因子的观测分析和养蟹区N、P等营养物质的平衡估算,结果表明,草型湖泊适合河蟹的养殖;不投饵时,养蟹有助于减轻湖泊内的营养负荷;而投饵的利用和转化率很低,多数饵料沉积于湖底或进入湖水中,从而影响湖泊生态环境。
2) Nushan Lake
围栏养蟹
1.
Utilization and Protection of the Submerged Plant Resources by Pen-crab Culturing in Nushan Lake;
围栏养蟹利用与女山湖沉水植物资源保护
3) aquatic-breeding
围网养殖
1.
The results showed that the nitrogen was the main pollution factor,including total nitrogen,ammonia nitrogen and nitrate nitrogen,which mainly came from the inlet river,precipitation,aquatic-breeding and point sources.
2005年通过对骆马湖水质监测,并结合近几年的监测资料进行了分析,结果表明,氮是骆马湖水体的主要污染物,包括总氮、氨氮和硝酸盐氮,其主要特征是入湖河流、降水、围网养殖和点源带来的污染。
4) Enclosure Culture
网围养殖
1.
Remote sensing investigation and analysis of ponding and enclosure culture in Taihu Lake;
太湖围湖利用及网围养殖的遥感调查与分析
5) raising ducks in fishingpond with net
围网养鸭
6) purse net
围网养
1.
The study were carried out on contrast of action, domestication degree and mortality of musk deer bred in the purse net and captivity in Chongming Island,shanghai.
为提高林麝的科学饲养水平和养麝的经济效益 ,对上海崇明岛东平林场圈养和围网养林麝的行为、驯化程度及死亡率 3项指标进行比较研究。
补充资料：蟹网
1.一种捕蟹的网。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条